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1 199 simons
# Maintained by Axel Boldt (boldt@math.ucsb.edu)
2
#
3
# This version of the Linux kernel configuration help texts
4
# corresponds to the kernel versions 2.0.x.
5
#
6
# International versions of this file available on the WWW:
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#   - http://jf.gee.kyoto-u.ac.jp/JF/JF-ftp/euc/Configure.help.euc
8
# is a Japanese translation, maintained by Tetsuyasu YAMADA
9
# (tetsu@cauchy.nslab.ntt.jp).
10
#   - http://nevod.perm.su/service/linux/doc/kernel/Configure.help
11
# is a Russian translation, maintained by kaf@linux.nevod.perm.su.
12
#
13
# Information about what a kernel is, what it does, how to patch and
14
# compile it and much more is contained in the Kernel-HOWTO, available
15
# via FTP (user: anonymous) from sunsite.unc.edu in the directory
16
# /pub/Linux/docs/HOWTO.
17
#
18
# Format of this file: descriptionvariablehelptext.
19
# If the question being documented is of type "choice", we list
20
# only the first occurring config variable. The help texts
21
# must not contain empty lines. No variable should occur twice; if it
22
# does, only the first occurrence will be used by Configure. The lines
23
# in a help text should be indented two positions. Lines starting with
24
# `#' are ignored. To be nice to menuconfig, limit your lines to 70
25
# characters. Use emacs' kfill.el to edit this file or you lose.
26
#
27
# If you add a help text to this file, please try to be as gentle as
28
# possible. Don't use unexplained acronyms and generally write for the
29
# hypothetical user who has just bought a PC, removed Windows,
30
# installed Linux and is now recompiling the kernel for the first
31
# time. Tell them what to do if they're unsure. Technical information
32
# should go in a README in the Documentation directory. Mention all
33
# the relevant READMEs and HOWTOs in the help text.
34
#
35
# All this was shamelessly stolen from several different sources. Many
36
# thanks to all the contributors.  Feel free to use these help texts
37
# in your own kernel configuration tools. The texts are copyrighted
38
# (c) 1995,1996 by Axel Boldt and governed by the GNU Public License.
39
 
40
Prompt for development and/or incomplete code/drivers
41
CONFIG_EXPERIMENTAL
42
  Some of the various things that Linux supports (such as network
43
  drivers, filesystems, network protocols, etc.) can be in a state
44
  of development where the functionality, stability, or the level of
45
  testing is not yet high enough for general use.  This is usually
46
  known as the "alpha-test" phase amongst developers.  If a feature is
47
  currently in alpha-test, then the developers usually discourage
48
  uninformed widespread use of this feature by the general public to
49
  avoid "Why doesn't this work?" type mail messages.  However, active
50
  testing and use of these systems is welcomed.  Just be aware that it
51
  may not meet the normal level of reliability or it may fail to work
52
  in some special cases.  Detailed bug reports from people familiar
53
  with the kernel internals are usually welcomed by the developers.
54
  Unless you intend to help test and develop a feature or driver that
55
  falls into this category, or you have a situation that requires
56
  using these features you should probably say N here, which will
57
  cause this configure script to present you with fewer choices.  If
58
  you say Y here, you will be offered the choice of using features or
59
  drivers that are currently considered to be in the alpha-test phase.
60
 
61
Symmetric Multi Processing
62
CONFIG_SMP
63
  This enables support for systems with more than one CPU.  If you have a
64
  system with only one CPU, like most personal computers, say N.  If you
65
  have a system with more than one CPU, say Y.
66
 
67
  A non-SMP kernel will run on any machine, but will use only one CPU of
68
  a multi-CPU machine.  An SMP kernel will run on many, but not all,
69
  single-CPU machines.  On a single-CPU machine, a non-SMP kernel
70
  will run faster than an SMP kernel.
71
 
72
  People using multiprocessor machines should also say Y to "Enhanced
73
  Real Time Clock Support", below.  The "Advanced Power Management"
74
  code will be disabled in an SMP kernel.
75
 
76
  If you don't know what to do here, say N.
77
 
78
  See also: Documentation/SMP.txt, Documentation/smp.tex,
79
  Documentation/smp.txt, and Documentation/IO-APIC.txt.  Also see the
80
  SMP-FAQ on the WWW at http://www.irisa.fr/prive/mentre/smp-faq/ (to
81
  browse the WWW, you need to have access to a machine on the Internet
82
  that has a program like lynx or netscape).
83
 
84
Kernel math emulation
85
CONFIG_MATH_EMULATION
86
  Linux can emulate a math coprocessor (used for floating point
87
  operations) if you don't have one. 486DX and Pentium processors have
88
  a math coprocessor built in, 486SX and 386 do not, unless you added
89
  a 487DX or 387, respectively.  (The messages during boot time can
90
  give you some hints here ["man dmesg"]) Everyone needs either a
91
  coprocessor or this emulation. If you enable this emulation even
92
  though you have a coprocessor, the coprocessor will be used
93
  nevertheless. (This behavior can be changed with the kernel command
94
  line option "no387", which comes handy if your coprocessor is
95
  broken. See the documentation of your boot loader (lilo or loadlin)
96
  about how to pass options to the kernel at boot time. The lilo
97
  procedure is also explained in the SCSI-HOWTO, available via FTP
98
  (user: anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.) This
99
  means that it is a good idea to say Y here if you intend to use this
100
  kernel on different machines. More information about the internals
101
  of Linux math coprocessor emulation can be found in
102
  arch/i386/math-emu/README. If you are not sure, say Y; apart from
103
  resulting in a 45kB bigger kernel, it won't hurt.
104
 
105
Max physical memory
106
CONFIG_MAX_MEMSIZE
107
  Linux/x86 can use up to ~3.5 gigabytes of physical memory. Default
108
  is maximum 950 megabyte physical memory, this is enough for most
109
  systems. (if you have more than 900MB RAM, see
110
  Documentation/more-than-900MB-RAM.txt how to configure this option. Do
111
  not change this value if you have less than 950MB RAM!)
112
 
113
Normal floppy disk support
114
CONFIG_BLK_DEV_FD
115
  If you want to use your floppy disk drive(s) under Linux, say Y.
116
  Information about this driver, especially important for IBM Thinkpad
117
  users, is contained in drivers/block/README.fd.  This driver is also
118
  available as a module ( = code which can be inserted in and removed
119
  from the running kernel whenever you want). If you want to compile
120
  it as a module, say M here and read Documentation/modules.txt.
121
 
122
RAM disk support
123
CONFIG_BLK_DEV_RAM
124
  Enabling this option will allow you to use a portion of your RAM
125
  memory as a block device, so that you can make filesystems on it,
126
  read and write to it and do all the other things that normal block
127
  devices (such as hard drives) can do. It is usually used to load and
128
  store a copy of a minimal root file system off of a floppy into RAM
129
  during the initial install of Linux. Note that the kernel command
130
  line option "ramdisk=XX" is now obsolete. For details, read
131
  Documentation/ramdisk.txt. If you want to compile this as a module
132
  ( = code which can be inserted in and removed from the running
133
  kernel whenever you want), say M and read Documentation/modules.txt.
134
  Most normal users won't need the RAM disk functionality, and can
135
  thus say N here.
136
 
137
RAM disk releasable blocks
138
CONFIG_RD_RELEASE_BLOCKS
139
  If this option is enabled, the RAM disk will attempt to release blocks
140
  (thus freeing memory) that are empty -- contain only zeros. This slows
141
  down writes to RAM disks by an unknown degree.
142
 
143
Initial RAM disk (initrd) support
144
CONFIG_BLK_DEV_INITRD
145
  The initial RAM disk is a RAM disk that is loaded by the boot loader
146
  (LOADLIN or LILO) and that is mounted as root before the normal boot
147
  procedure. It is typically used to load modules needed to mount the
148
  "real" root file system, etc. See Documentation/initrd.txt for
149
  details.
150
 
151
Loop device support
152
CONFIG_BLK_DEV_LOOP
153
  Enabling this option will allow you to mount a file as a file
154
  system.  This is useful if you want to check an ISO9660 file system
155
  before burning the CD, or want to use floppy images without first
156
  writing them to floppy.  This option also allows one to mount a
157
  filesystem with encryption.  To use these features, you need a
158
  recent version of mount (check the file Documentation/Changes for
159
  location and latest version).  Note that this loop device has
160
  nothing to do with the loopback device used for network connections
161
  from the machine to itself.  Most users will answer N here.
162
 
163
Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support
164
CONFIG_BLK_DEV_IDE
165
  This will use the full-featured IDE driver to control up to four
166
  IDE interfaces, for a combination of up to eight IDE
167
  disk/cdrom/tape/floppy drives.  Useful information about large
168
  (>540MB) IDE disks, sound card IDE ports, and other topics, is all
169
  contained in Documentation/ide.txt.  If you have one or more IDE
170
  drives, say Y here.  If your system has no IDE drives, or if
171
  memory requirements are really tight, you could say N here, and
172
  select the Old hard disk driver instead to save about 13kB of
173
  memory in the kernel.  To fine-tune IDE drive/interface parameters
174
  for improved performance, look for the hdparm package at
175
  sunsite.unc.edu:/pub/Linux/kernel/patches/diskdrives/
176
 
177
Old hard disk (MFM/RLL/IDE) driver
178
CONFIG_BLK_DEV_HD_ONLY
179
  There are two drivers for MFM/RLL/IDE disks.  Most people use the
180
  newer enhanced driver, but the old one is still around for two
181
  reasons.  Some older systems have strange timing problems and seem
182
  to work only with the old driver (which itself does not work with
183
  some newer systems).  The other reason is that the old driver is
184
  smaller, since it lacks the enhanced functionality of the new one.
185
  This makes it a good choice for systems with very tight memory
186
  restrictions, or for systems with only older MFM/RLL/ESDI drives.
187
  Choosing the old driver can save 13kB or so of kernel memory.  If
188
  you are unsure, then just choose the Enhanced IDE/MFM/RLL driver
189
  instead of this one.
190
 
191
Use old disk-only driver on primary interface
192
CONFIG_BLK_DEV_HD_IDE
193
  There are two drivers for MFM/RLL/IDE disks.  Most people use just
194
  the new enhanced driver by itself.  This option installs the old
195
  hard disk driver to control the primary IDE/disk interface in the
196
  system, leaving the new enhanced IDE driver take care of only the
197
  2nd/3rd/4th IDE interfaces. Doing this will prevent you from having
198
  an IDE/ATAPI CDROM or tape drive connected to the primary IDE
199
  interface. Choosing this option may be useful for older systems
200
  which have MFM/RLL/ESDI controller+drives at the primary port
201
  address (0x1f0), along with IDE drives at the secondary/3rd/4th port
202
  addresses.  Normally, just say N here; you will then use the new
203
  driver for all 4 interfaces.
204
 
205
Use multi-mode by default
206
CONFIG_IDEDISK_MULTI_MODE
207
  If you get this error, try to enable this option.
208
 
209
  hda: set_multmode: status=0x51 { DriveReady SeekComplete Error }
210
  hda: set_multmode: error=0x04 { DriveStatusError }
211
 
212
  If in doubt, say N.
213
 
214
Include IDE/ATAPI CDROM support
215
CONFIG_BLK_DEV_IDECD
216
  If you have a CDROM drive using the ATAPI protocol, say Y.  ATAPI is
217
  a new protocol used by IDE CDROM and TAPE drives, similar to the
218
  SCSI protocol.  Most new CDROM drives use ATAPI, including the
219
  NEC-260, Mitsumi FX400, Sony 55E, and just about all non-SCSI
220
  double(2X), quad(4X), and six(6X) speed drives.  At boot time, the
221
  TAPE drive will be identified along with other IDE devices, as "hdb"
222
  or "hdc", or something similar.
223
  If this is your only CDROM drive, you can say N to all other CDROM
224
  options, but be sure to say Y to the ISO9660 filesystem.  Read the
225
  CDROM-HOWTO, available via FTP (user: anonymous) in
226
  sunsite.unc.edu:/pub/Linux/docs/HOWTO and the file
227
  Documentation/cdrom/ide-cd.  Note that older versions of lilo (the
228
  Linux boot loader) cannot properly deal with IDE/ATAPI CDROMs, so
229
  install lilo-16 or higher, available from
230
  sunsite.unc.edu:/pub/Linux/system/Linux-boot/lilo.
231
 
232
Include IDE/ATAPI TAPE support
233
CONFIG_BLK_DEV_IDETAPE
234
  If you have an IDE tape drive using the ATAPI protocol, say Y.
235
  ATAPI is a new protocol used by IDE TAPE and ATAPI drives,
236
  similar to the SCSI protocol.  At boot time, the TAPE drive will
237
  be identified along with other IDE devices, as "hdb" or "hdc",
238
  or something similar, and will be mapped to a character device
239
  such as "ht0".  Be sure to consult the drivers/block/ide-tape.c
240
  and Documentation/ide.txt files for usage information.
241
 
242
Include IDE/ATAPI FLOPPY support (new)
243
CONFIG_BLK_DEV_IDEFLOPPY
244
  If you have an IDE floppy which uses the ATAPI protocol, say Y.
245
  ATAPI is a new protocol used by IDE cdrom/tape/floppy drives,
246
  similar to the SCSI protocol.  IDE floppy drives include the LS-120
247
  and the ATAPI ZIP (ATAPI PD-CD drives are not supported by this
248
  driver; support for PD-CD drives is available through the SCSI
249
  emulation).  At boot time, the FLOPPY drive will be identified along
250
  with other IDE devices, as "hdb" or "hdc", or something similar.
251
 
252
SCSI emulation support
253
CONFIG_BLK_DEV_IDESCSI
254
  This will provide SCSI host adapter emulation for IDE ATAPI devices,
255
  and will allow you to use a SCSI device driver instead of a native
256
  ATAPI driver. This is useful if you have an ATAPI device for which
257
  no native driver has been written (for example, an ATAPI PD-CD
258
  drive); you can then use this emulation together with an appropriate
259
  SCSI device driver. If both this SCSI emulation and native ATAPI
260
  support are compiled into the kernel, the native support will be
261
  used.  Normally, say N.
262
 
263
Support removable IDE interfaces (PCMCIA)
264
CONFIG_BLK_DEV_IDE_PCMCIA
265
  This option adds code to the IDE driver to handle hot insertion
266
  and removal of IDE interfaces and drives, under direction of an
267
  external utility (?).  Normally, just say N here.
268
 
269
CMD640 chipset bugfix/support
270
CONFIG_BLK_DEV_CMD640
271
  The CMD-Technologies CMD640 chip is used on many common 486 and
272
  Pentium motherboards, usually in combination with a "Neptune" or
273
  "SiS" chipset.  Unfortunately, it has a number of rather nasty
274
  design flaws that can cause severe data corruption under many common
275
  conditions.  Say Y here to include code which tries to automatically
276
  detect and correct the problems under Linux.  This option also
277
  enables access to the secondary IDE ports in some CMD640 based
278
  systems.  This driver will work automatically in PCI based systems
279
  (most new systems have PCI slots).  But if your system uses VESA
280
  local bus (VLB) instead of PCI, you must also supply a kernel boot
281
  parameter to enable the CMD640 bugfix/support: "ide0=cmd640_vlb" The
282
  CMD640 chip is also used on add-in cards by Acculogic, and on the
283
  "CSA-6400E PCI to IDE controller" that some people have. For
284
  details, read Documentation/ide.txt. If unsure, say Y.
285
 
286
CMD640 enhanced support
287
CONFIG_BLK_DEV_CMD640_ENHANCED
288
  This option includes support for setting/autotuning PIO modes and
289
  prefetch on CMD640 IDE interfaces.  For details, read
290
  Documentation/ide.txt. If you have a CMD640 IDE interface and your
291
  BIOS does not already do this for you, then say Y here.  Otherwise
292
  say N.
293
 
294
RZ1000 chipset bugfix/support
295
CONFIG_BLK_DEV_RZ1000
296
  The PC-Technologies RZ1000 chip is used on many common 486 and
297
  Pentium motherboards, usually along with the "Neptune" chipset.
298
  Unfortunately, it has a rather nasty design flaw that can cause
299
  severe data corruption under many conditions.  Say Y here to include
300
  code which automatically detects and corrects the problem under
301
  Linux.  This may slow disk throughput by a few percent, but at least
302
  things will operate 100% reliably. If unsure, say Y.
303
 
304
Other IDE chipset support
305
CONFIG_IDE_CHIPSETS
306
  Say Y here if you want to include enhanced support for various IDE
307
  interface chipsets used on motherboards and add-on cards.  This
308
  enhanced support may be necessary for Linux to be able to access the
309
  3rd/4th drives in some systems.  It may also enable setting of
310
  higher speed I/O rates to improve system performance with these
311
  chipsets.  Most of these also require special kernel boot parameters
312
  to actually turn on the support at runtime.
313
 
314
DTC-2278 support
315
CONFIG_BLK_DEV_DTC2278
316
  This driver is enabled at runtime using the "ide0=dtc2278" kernel
317
  boot parameter.  It enables support for the secondary IDE interface
318
  of the DTC-2278 card, and permits faster I/O speeds to be set as
319
  well.  See the Documentation/ide.txt and dtc2278.c files for more
320
  info.
321
 
322
Holtek HT6560B support
323
CONFIG_BLK_DEV_HT6560B
324
  This driver is enabled at runtime using the "ide0=ht6560b" kernel
325
  boot parameter.  It enables support for the secondary IDE interface
326
  of the Holtek card, and permits faster I/O speeds to be set as well.
327
  See the Documentation/ide.txt and ht6560b.c files for more info.
328
 
329
QDI QD6580 support
330
CONFIG_BLK_DEV_QD6580
331
  This driver is enabled at runtime using the "ide0=qd6580" kernel
332
  boot parameter.  It permits faster I/O speeds to be set.  See the
333
  Documentation/ide.txt and qd6580.c files for more info.
334
 
335
UMC 8672 support
336
CONFIG_BLK_DEV_UMC8672
337
  This driver is enabled at runtime using the "ide0=umc8672" kernel
338
  boot parameter.  It enables support for the secondary IDE interface
339
  of the UMC-8672, and permits faster I/O speeds to be set as well.
340
  See the Documentation/ide.txt and umc8672.c files for more info.
341
 
342
ALI M14xx support
343
CONFIG_BLK_DEV_ALI14XX
344
  This driver is enabled at runtime using the "ide0=ali14xx" kernel
345
  boot parameter.  It enables support for the secondary IDE interface
346
  of the ALI M1439/1443/1445/1487/1489 chipsets, and permits faster
347
  I/O speeds to be set as well.  See the Documentation/ide.txt and
348
  ali14xx.c files for more info.
349
 
350
PROMISE DC4030 support (EXPERIMENTAL)
351
CONFIG_BLK_DEV_PROMISE
352
  This driver is enabled at runtime using the "ide0=dc4030" kernel
353
  boot parameter.  It enables support for the secondary IDE interface
354
  of the chipset, and takes advantage of the caching features of the
355
  card.  This driver is known to incur timeouts/retries during heavy
356
  I/O to drives attached to the secondary interface.  CDROM and TAPE
357
  devices are not supported yet.  See the Documentation/ide.txt and
358
  promise.c files for more info.
359
 
360
XT hard disk support
361
CONFIG_BLK_DEV_XD
362
  Very old 8 bit hard disk controllers used in the IBM XT computer.
363
  To include a driver for these, say Y.  If you want to compile the
364
  driver as a module ( = code which can be inserted in and removed
365
  from the running kernel whenever you want), say M here and read
366
  Documentation/modules.txt.
367
  It's pretty unlikely that you have one of these: say N.
368
 
369
Mylex DAC960/DAC1100 PCI RAID Controller support
370
CONFIG_BLK_DEV_DAC960
371
  This driver adds support for the Mylex DAC960, AcceleRAID, and
372
  eXtremeRAID PCI RAID controllers.  See README.DAC960 for further
373
  information about this driver.
374
 
375
Parallel port IDE device support
376
CONFIG_PARIDE
377
  There are many external CD-ROM and disk devices that connect through
378
  your computer's parallel port. Most of them are actually IDE devices
379
  using a parallel port IDE adapter. This option enables the PARIDE
380
  subsystem which contains drivers for many of these external drives.
381
  Read linux/Documentation/paride.txt for more information.
382
  If you built PARIDE support into your kernel, you may still build
383
  the individual protocol modules and high-level drivers as loadable
384
  modules. If you build this support as a module, it will be called
385
  paride.o. To use the PARIDE support, you must say Y or M here and
386
  also to at least one high-level driver (e.g. "Parallel port IDE
387
  disks", "Parallel port ATAPI CD-ROMs", "Parallel port ATAPI disks"
388
  etc.) and to at least one protocol driver (e.g. "ATEN EH-100
389
  protocol", "MicroSolutions backpack protocol", "DataStor Commuter
390
  protocol" etc.).
391
 
392
Parallel port IDE disks
393
CONFIG_PARIDE_PD
394
  This option enables the high-level driver for IDE-type disk devices
395
  connected through a parallel port.  If you chose to build PARIDE
396
  support into your kernel, you may answer Y here to build in the
397
  parallel port IDE driver, otherwise you should answer M to build
398
  it as a loadable module.  The module will be called pd.o.  You
399
  must also have at least one parallel port protocol driver in your
400
  system.  Among the devices supported by this driver are the SyQuest
401
  EZ-135, EZ-230 and SparQ drives, the Avatar Shark and the backpack
402
  hard drives from MicroSolutions.
403
 
404
Parallel port ATAPI CD-ROMs
405
CONFIG_PARIDE_PCD
406
  This option enables the high-level driver for ATAPI CD-ROM devices
407
  connected through a parallel port. If you chose to build PARIDE
408
  support into your kernel, you may answer Y here to build in the
409
  parallel port ATAPI CD-ROM driver, otherwise you should answer M to
410
  build it as a loadable module. The module will be called pcd.o. You
411
  must also have at least one parallel port protocol driver in your
412
  system. Among the devices supported by this driver are the
413
  MicroSolutions backpack CD-ROM drives and the Freecom Power CD. If
414
  you have such a CD-ROM drive, you should also say Y to "ISO9660
415
  cdrom filesystem support" below, because that's the filesystem used
416
  on CDROMs.
417
 
418
Parallel port ATAPI disks
419
CONFIG_PARIDE_PF
420
  This option enables the high-level driver for ATAPI disk devices
421
  connected through a parallel port.  If you chose to build PARIDE
422
  support into your kernel, you may answer Y here to build in the
423
  parallel port ATAPI disk driver, otherwise you should answer M
424
  to build it as a loadable module.  The module will be called pf.o.
425
  You must also have at least one parallel port protocol driver in
426
  your system.  Among the devices supported by this driver are the
427
  MicroSolutions backpack PD/CD drive and the Imation Superdisk
428
  LS-120 drive.
429
 
430
Parallel port ATAPI tapes
431
CONFIG_PARIDE_PT
432
  This option enables the high-level driver for ATAPI tape devices
433
  connected through a parallel port.  If you chose to build PARIDE
434
  support into your kernel, you may answer Y here to build in the
435
  parallel port ATAPI tape driver, otherwise you should answer M
436
  to build it as a loadable module.  The module will be called pt.o.
437
  You must also have at least one parallel port protocol driver in
438
  your system.  Among the devices supported by this driver is the
439
  parallel port version of the HP 5GB drive.
440
 
441
Parallel port generic ATAPI devices
442
CONFIG_PARIDE_PG
443
  This option enables a special high-level driver for generic ATAPI
444
  devices connected through a parallel port. The driver allows user
445
  programs, such as cdrecord, to send ATAPI commands directly to
446
  a device.  If you chose to build PARIDE support into your kernel,
447
  you may answer Y here to build in the parallel port generic ATAPI
448
  driver, otherwise you should answer M to build it as a loadable
449
  module.  The module will be called pg.o.  You must also have at
450
  least one parallel port protocol driver in your system.  This driver
451
  implements an API loosely related to the generic SCSI driver.  See
452
  /usr/include/linux/pg.h for details.  You can obtain the most recent
453
  version of cdrecord from ftp://ftp.fokus.gmd.de/pub/unix/cdrecord/ .
454
  Versions 1.6.1a3 and later fully support the pg driver.
455
 
456
ATEN EH-100 protocol
457
CONFIG_PARIDE_ATEN
458
  This option enables support for the ATEN EH-100 parallel port IDE
459
  protocol.  This protocol is used in some inexpensive low performance
460
  parallel port kits made in Hong Kong.  If you chose to build PARIDE
461
  support into your kernel, you may answer Y here to build in the
462
  protocol driver, otherwise you should answer M to build it as a
463
  loadable module.  The module will be called aten.o.  You must also
464
  have a high-level driver for the type of device that you want to
465
  support.
466
 
467
MicroSolutions backpack protocol
468
CONFIG_PARIDE_BPCK
469
  This option enables support for the MicroSolutions backpack
470
  parallel port IDE protocol.  If you chose to build PARIDE support
471
  into your kernel, you may answer Y here to build in the protocol
472
  driver, otherwise you should answer M to build it as a loadable
473
  module.  The module will be called bpck.o.  You must also have
474
  a high-level driver for the type of device that you want to support.
475
 
476
DataStor Commuter protocol
477
CONFIG_PARIDE_COMM
478
  This option enables support for the Commuter parallel port IDE
479
  protocol from DataStor.  If you chose to build PARIDE support
480
  into your kernel, you may answer Y here to build in the protocol
481
  driver, otherwise you should answer M to build it as a loadable
482
  module.  The module will be called comm.o.  You must also have
483
  a high-level driver for the type of device that you want to support.
484
 
485
DataStor EP-2000 protocol
486
CONFIG_PARIDE_DSTR
487
  This option enables support for the EP-2000 parallel port IDE
488
  protocol from DataStor.  If you chose to build PARIDE support
489
  into your kernel, you may answer Y here to build in the protocol
490
  driver, otherwise you should answer M to build it as a loadable
491
  module.  The module will be called dstr.o.  You must also have
492
  a high-level driver for the type of device that you want to support.
493
 
494
Shuttle EPAT/EPEZ protocol
495
CONFIG_PARIDE_EPAT
496
  This option enables support for the EPAT parallel port IDE
497
  protocol.  EPAT is a parallel port IDE adapter manufactured by
498
  Shuttle Technology and widely used in devices from major vendors
499
  such as Hewlett-Packard, SyQuest, Imation and Avatar.  If you
500
  chose to build PARIDE support into your kernel, you may answer Y
501
  here to build in the protocol driver, otherwise you should answer M
502
  to build it as a loadable module.  The module will be called epat.o.
503
  You must also have a high-level driver for the type of device that
504
  you want to support.
505
 
506
Shuttle EPIA protocol
507
CONFIG_PARIDE_EPIA
508
  This option enables support for the (obsolete) EPIA parallel port
509
  IDE protocol from Shuttle Technology.  This adapter can still be
510
  found in some no-name kits.  If you chose to build PARIDE support
511
  into your kernel, you may answer Y here to build in the protocol
512
  driver, otherwise you should answer M to build it as a loadable
513
  module.  The module will be called epia.o.  You must also have a
514
  high-level driver for the type of device that you want to support.
515
 
516
FIT TD-2000 protocol
517
CONFIG_PARIDE_FIT2
518
  This option enables support for the TD-2000 parallel port IDE
519
  protocol from Fidelity International Technology.  This is a simple
520
  (low speed) adapter that is used in some portable hard drives.
521
  If you chose to build PARIDE support into your kernel, you may
522
  answer Y here to build in the protocol driver, otherwise you should
523
  answer M to build it as a loadable module.  The module will be
524
  called fit2.o.  You must also have a high-level driver for the type
525
  of device that you want to support.
526
 
527
FIT TD-3000 protocol
528
CONFIG_PARIDE_FIT3
529
  This option enables support for the TD-3000 parallel port IDE
530
  protocol from Fidelity International Technology.  This protocol is
531
  used in newer models of their portable disk, CD-ROM and PD/CD
532
  devices.  If you chose to build PARIDE support into your kernel, you
533
  may answer Y here to build in the protocol driver, otherwise you
534
  should answer M to build it as a loadable module.  The module will
535
  be called fit3.o.  You must also have a high-level driver for the
536
  type of device that you want to support.
537
 
538
Freecom IQ ASIC-2 protocol
539
CONFIG_PARIDE_FRIQ
540
  This option enables support for version 2 of the Freecom IQ parallel
541
  port IDE adapter.  This adapter is used by the Maxell Superdisk
542
  drive.  If you chose to build PARIDE support into your kernel, you
543
  may answer Y here to build in the protocol driver, otherwise you
544
  should answer M to build it as a loadable module. The module will be
545
  called friq.o. You must also have a high-level driver for the type
546
  of device that you want to support.
547
 
548
FreeCom power protocol
549
CONFIG_PARIDE_FRPW
550
  This option enables support for the Freecom power parallel port IDE
551
  protocol.  If you chose to build PARIDE support into your kernel,
552
  you may answer Y here to build in the protocol driver, otherwise you
553
  should answer M to build it as a loadable module.  The module will
554
  be called frpw.o.  You must also have a high-level driver for the
555
  type of device that you want to support.
556
 
557
KingByte KBIC-951A/971A protocols
558
CONFIG_PARIDE_KBIC
559
  This option enables support for the KBIC-951A and KBIC-971A parallel
560
  port IDE protocols from KingByte Information Corp.  KingByte's
561
  adapters appear in many no-name portable disk and CD-ROM products,
562
  especially in Europe.  If you chose to build PARIDE support into
563
  your kernel, you may answer Y here to build in the protocol driver,
564
  otherwise you should answer M to build it as a loadable module.
565
  The module will be called kbic.o.  You must also have a high-level
566
  driver for the type of device that you want to support.
567
 
568
KT PHd protocol
569
CONFIG_PARIDE_KTTI
570
  This option enables support for the "PHd" parallel port IDE protocol
571
  from KT Technology.  This is a simple (low speed) adapter that is
572
  used in some 2.5" portable hard drives.  If you chose to build
573
  PARIDE support into your kernel, you may answer Y here to build in
574
  the protocol driver, otherwise you should answer M to build it as a
575
  loadable module.  The module will be called ktti.o.  You must also
576
  have a high-level driver for the type of device that you want to
577
  support.
578
 
579
OnSpec 90c20 protocol
580
CONFIG_PARIDE_ON20
581
  This option enables support for the (obsolete) 90c20 parallel port
582
  IDE protocol from OnSpec (often marketed under the ValuStore brand
583
  name).  If you chose to build PARIDE support into your kernel, you
584
  may answer Y here to build in the protocol driver, otherwise you
585
  should answer M to build it as a loadable module.  The module will
586
  be called on20.o.  You must also have a high-level driver for the
587
  type of device that you want to support.
588
 
589
OnSpec 90c26 protocol
590
CONFIG_PARIDE_ON26
591
  This option enables support for the 90c26 parallel port IDE protocol
592
  from OnSpec Electronics (often marketed under the ValuStore brand
593
  name).  If you chose to build PARIDE support into your kernel, you
594
  may answer Y here to build in the protocol driver, otherwise you
595
  should answer M to build it as a loadable module.  The module will
596
  be called on26.o.  You must also have a high-level driver for the
597
  type of device that you want to support.
598
 
599
Multiple devices driver support
600
CONFIG_BLK_DEV_MD
601
  This driver lets you combine several hard disk partitions into one
602
  logical block device.  Information about how and why to use it and
603
  the necessary tools are available over FTP (user: anonymous) from
604
  sweet-smoke.ufr-info-p7.ibp.fr/pub/public/Linux in the md package
605
  and the md-FAQ. Please read drivers/block/README.md.  If unsure,
606
  say N.
607
 
608
Linear (append) mode
609
CONFIG_MD_LINEAR
610
  If you enable this, then your multiple devices driver will be able
611
  to use the so-called linear mode, i.e. it will combine the hard disk
612
  partitions by simply appending one to the other. If you want to
613
  compile this as a module ( = code which can be inserted in and
614
  removed from the running kernel whenever you want), say M here and
615
  read Documentation/modules.txt. If unsure, say Y.
616
 
617
RAID-0 (striping) mode
618
CONFIG_MD_STRIPED
619
  If you enable this, then your multiple devices driver will be able
620
  to use the so-called raid0 mode, i.e. it will combine the hard disk
621
  partitions into one logical device in such a fashion as to fill them
622
  up evenly, one chunk here and one chunk there. This will increase
623
  the throughput rate if the partitions reside on distinct disks.  If
624
  you want to compile this as a module ( = code which can be inserted
625
  in and removed from the running kernel whenever you want), say M
626
  here and read Documentation/modules.txt. If unsure, say Y.
627
 
628
RAID-1 (mirroring) mode
629
CONFIG_MD_MIRRORING
630
  A RAID-1 set consists of several disk drives which are exact copies
631
  of each other. In the event of a mirror failture, the RAID driver
632
  will continue to use the operational mirrors in the set, providing
633
  an error free MD device to the higher levels of the kernel. In
634
  a set with N drives, the available space is the capacity of a single
635
  drive, and the set protects against a failture of (N - 1) drives.
636
  raidtools, a set of user-space tools which create and maintain
637
  RAID1/4/5 sets, is available at:
638
  http://luthien.nuclecu.unam.mx/~miguel/raid
639
 
640
RAID-4/RAID-5 mode
641
CONFIG_MD_RAID5
642
  A RAID-5 set of N drives with a capacity of C MB per drive provides
643
  the capacity of C * (N - 1) drives, and protects against a failture
644
  of a single drive. For a given sector (row) number, (N - 1) drives
645
  contain data sectors, and one drive contains the parity protection.
646
  For a RAID-4 set, the parity blocks are present on a single drive,
647
  while a RAID-5 set distributes the parity accross the drives in one
648
  of the available parity distribution methods.
649
  raidtools, a set of user-space tools which create and maintain
650
  RAID1/4/5 sets, is available at:
651
  http://luthien.nuclecu.unam.mx/~miguel/raid
652
 
653
Support for Deskstation RPC44
654
CONFIG_DESKSTATION_RPC44
655
  This is a machine with a R4400 100 MHz CPU. To compile a Linux
656
  kernel that runs on these, say Y here. For details about Linux on
657
  the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
658
  http://lena.fnet.fr/ (To browse the WWW, you need to have access
659
  to a machine on the Internet that has one of the programs lynx,
660
  netscape or Mosaic).
661
 
662
Support for Mips Magnum 3000
663
CONFIG_MIPS_MAGNUM_3000
664
  To compile a Linux kernel that runs on these, say Y here. For
665
  details about Linux on the MIPS architecture, check out the
666
  Linux/MIPS FAQ on the WWW at http://lena.fnet.fr/ (To browse the
667
  WWW, you need to have access to a machine on the Internet that has
668
  one of the programs lynx, netscape or Mosaic).
669
 
670
Support for Mips Magnum 4000
671
CONFIG_MIPS_MAGNUM_4000
672
  This is a machine with a R4000 100 MHz CPU. To compile a Linux
673
  kernel that runs on these, say Y here. For details about Linux on
674
  the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
675
  http://lena.fnet.fr/ (To browse the WWW, you need to have access
676
  to a machine on the Internet that has one of the programs lynx,
677
  netscape or Mosaic).
678
 
679
Support for Olivetti M700
680
CONFIG_OLIVETTI_M700
681
  This is a machine with a R4000 100 MHz CPU. To compile a Linux
682
  kernel that runs on these, say Y here. For details about Linux on
683
  the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
684
  http://lena.fnet.fr/ (To browse the WWW, you need to have access
685
  to a machine on the Internet that has one of the programs lynx,
686
  netscape or Mosaic).
687
 
688
Support for Deskstation Tyne
689
CONFIG_DESKSTATION_TYNE
690
  This is a machine with a R4600 134 MHz CPU. The Linux port for this
691
  system is idle right now because of hardware or documentation
692
  problems. For details about Linux on the MIPS architecture, check
693
  out the Linux/MIPS FAQ on the WWW at http://lena.fnet.fr/ (To browse
694
  the WWW, you need to have access to a machine on the Internet that
695
  has one of the programs lynx, netscape or Mosaic).
696
 
697
Support for Acer PICA 1 chipset
698
CONFIG_ACER_PICA_61
699
  This is a machine with a R4400 134/150 MHz CPU. To compile a Linux
700
  kernel that runs on these, say Y here. For details about Linux on
701
  the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
702
  http://lena.fnet.fr/ (To browse the WWW, you need to have access
703
  to a machine on the Internet that has one of the programs lynx,
704
  netscape or Mosaic).
705
 
706
Support for DECstation
707
CONFIG_DECSTATION
708
  The DECStation 3100 (with a MIPS R2000 series CPU) and DECStation
709
  5000/xxx (MIPS R3000 series CPU) are also sometimes labeled PMAX.
710
  They often run the Ultrix operating system. To compile a Linux
711
  kernel that runs on these, say Y here. For details about Linux on
712
  the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
713
  http://lena.fnet.fr/ (To browse the WWW, you need to have access
714
  to a machine on the Internet that has one of the programs lynx,
715
  netscape or Mosaic).
716
 
717
CPU type
718
CONFIG_CPU_R3000
719
  Give the type of your machine's MIPS CPU. For this question, it
720
  suffices to give a unique prefix of the option you want to choose.
721
 
722
Networking support
723
CONFIG_NET
724
  Unless you really know what you are doing, you should say Y here.
725
  The reason is that some programs need it even if you configure a
726
  stand-alone machine that won't be connected to any other computer.
727
  from an older kernel, you should consider updating your networking
728
  tools too; read net/README for details.
729
 
730
Network aliasing
731
CONFIG_NET_ALIAS
732
  This is for setting multiple IP addresses on the same low-level
733
  network device driver. Typically used for services that act
734
  differently based on the address they listen on (e.g. "multihosting"
735
  on Apache httpd) or for connecting to different logical networks
736
  through the same physical interface.  This is the generic part,
737
  later when configuring network protocol options you will be asked
738
  for protocol-specific aliasing support.  See
739
  Documentation/networking/alias.txt for more info.  If you need this
740
  feature (for any protocol, like IP) say Y; if unsure, say N.
741
 
742
Network firewalls
743
CONFIG_FIREWALL
744
  A firewall is a computer which protects a local network from the
745
  rest of the World: all traffic to and from computers on the local
746
  net is inspected by the firewall first.  If you want to configure
747
  your Linux box as a firewall for a local network, say Y here.  If
748
  your local network is TCP/IP based, you will have to say Y to "IP:
749
  firewalling", below.  You also need to say Y here and enable "IP
750
  firewalling" below in order to be able to use IP masquerading
751
  (i.e. local computers can chat with an outside host, but that
752
  outside host is made to think that it is talking to the firewall
753
  box. Makes the local network completely invisible and avoids the
754
  need to allocate valid IP host addresses for the machines on the
755
  local net) or to use the ip packet accounting to see what is using
756
  all your network bandwidth. Chances are that you should use this on
757
  any machine being run as a router and not on a host.
758
  If unsure, say N.
759
 
760
SYN flood protection
761
CONFIG_SYN_COOKIES
762
  Normal TCP/IP networking is open to an attack known as SYN flooding.
763
  This attack prevents legitimate users from being able to connect to
764
  your computer and requires very little work for the attacker.
765
  SYN cookies provide protection against this type of attack.  With
766
  this option turned on the TCP/IP stack will use a cryptographic
767
  challenge protocol known as SYN cookies to enable legitimate users
768
  to continue to connect, even when your machine is under attack.
769
  If you are SYN flooded, the source address reported by the kernel is
770
  likely to have been forged by the attacker.  The source address is
771
  reported as an aid in tracing the packets to their actual source.
772
 
773
Sun floppy controller support
774
CONFIG_BLK_DEV_SUNFD
775
  This is support for floppy drives on Sun SPARC workstations. Say Y
776
  if you have a floppy drive, otherwise N. Easy.
777
 
778
Alpha system type
779
CONFIG_ALPHA_AVANTI
780
  Find out what type of Alpha motherboard you have. You will probably
781
  want to read the Linux/Alpha home page on the WWW at
782
  http://www.azstarnet.com/~axplinux/ (To browse the WWW, you need to
783
  have access to a machine on the Internet that has one of the
784
  programs lynx, netscape or Mosaic). For this question, it suffices
785
  to give a unique prefix of the option you want to choose. The
786
  choices:
787
  ** Avanti: This is for Mustang (AS200), M3 (AS250), Avanti (AS400)
788
     and XL (a.k.a. "Windows NT Dream Machine" :-) AlphaStations.
789
     These usually come with a TGA graphics adapter, so you'll want to
790
     say Y to "TGA Console support", below, if you have one of these.
791
  ** Jensen: a.k.a. DEC 2000 a.k.a. DECpc AXP 150, the oldest Alpha
792
     PC; it sports an EISA bus. The boot process on Jensen machines is
793
     difficult (no booting from floppies, MILO doesn't work). You need
794
     to have access to a second Linux workstation. The Linux/Alpha
795
     FAQ, accessible from the above mentioned WWW page, has details.
796
  ** Noname: a.k.a. AXPpci33, a PCI-bus based board using the 21066
797
     Alpha CPU, running at either 166 or 233 MHz. You also want to
798
     choose this option if you have a UDB (Universal Desktop Box
799
     a.k.a. Multia) machine.
800
  ** Cabriolet: also called AlphaPC64, a PCI-bus based board using the
801
     21064 Alpha CPU typically running at 275 or 300 MHz.
802
  ** EB66: "Evaluation Board"
803
  ** EB66+: "Evaluation Board"
804
###
805
### Add info about Platform2000, EB164
806
###
807
 
808
Is it really a true XL
809
CONFIG_ALPHA_XL
810
  If your Avanti Machine is of type XL (a.k.a. "Windows NT Dream
811
  Machine") (as opposed to Mustang (AS200), M3 (AS250) or Avanti
812
  (AS400)), say Y, otherwise N.
813
 
814
Limit memory to low 16MB
815
CONFIG_MAX_16M
816
  This is for some buggy motherboards which cannot properly deal with
817
  the memory above 16MB. If you have more than 16MB of RAM and
818
  experience weird problems, you might want to try Y, everyone else
819
  says N. Note for machines with more that 64MB of RAM: in order for
820
  the kernel to be able to use the memory above 64MB, pass the command
821
  line option "mem=XXXM" (where XXX is the memory size in megabytes)
822
  to your kernel during boot time. See the documentation of your boot
823
  loader (lilo or loadlin) about how to pass options to the kernel.
824
  The lilo procedure is also explained in the SCSI-HOWTO, available
825
  via FTP (user: anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.
826
  You also need at least 512kB of RAM cache if you have more than 64MB
827
  of RAM. Some other things to try when experiencing seemingly random,
828
  "weird" problems: 1) passing the "no-hlt" option to the kernel
829
  2) passing the "no-387" option to the kernel 3) passing the "mem=4M"
830
  option to the kernel (thereby disabling all but the first 4M of RAM)
831
  4) disabling the cache from your BIOS settings
832
  5) exchanging RAM chips  6) exchanging the motherboard.
833
 
834
Using SRM as bootloader
835
CONFIG_ALPHA_SRM
836
  There are two different types of booting firmware on Alphas: SRM,
837
  which is command line driven, and ARC, which uses menus and arrow
838
  keys. The usual way to load Linux on an Alpha machine is to use MILO
839
  (a bootloader that lets you pass command line parameters to the
840
  kernel just like LILO does) which can be loaded either from ARC or
841
  can be installed directly as a permanent firmware replacement from
842
  floppy (which requires changing a certain jumper on the
843
  motherboard). If you want to do either of these, say N here. If MILO
844
  doesn't work on your system (true for Jensen motherboards), you can
845
  bypass it altogether and boot Linux directly from an SRM console;
846
  say Y here in order to do that. Note that you won't be able to boot
847
  from an IDE disk using SRM. If unsure, say N. Details about the
848
  Linux/Alpha booting process are contained in the Linux/Alpha FAQ,
849
  accessible on the WWW from http://www.azstarnet.com/~axplinux/ (To
850
  browse the WWW, you need to have access to a machine on the Internet
851
  that has one of the programs lynx, netscape or Mosaic).
852
 
853
Echo console messages on /dev/ttyS1
854
CONFIG_SERIAL_ECHO
855
  If you enable this option, all kernel messages that would usually go
856
  to the console will also be sent to the device /dev/ttyS1 which
857
  corresponds to a serial port; this could be useful if you attached
858
  a terminal or printer to that port.
859
 
860
TGA Console Support
861
CONFIG_TGA_CONSOLE
862
  Many Alpha systems (e.g the Multia) are shipped with a graphics card
863
  that implements the TGA interface (much like the VGA standard, but
864
  older TGA adapters are *not* VGA compatible).  On such systems, this
865
  option needs to be enabled so that the TGA driver rather than the
866
  standard VGA driver is used.  Note that, at this time, there is no X
867
  server for these systems. If unsure, try N.
868
 
869
PCI bios support
870
CONFIG_PCI
871
  Find out whether you have a PCI motherboard. PCI is the name of a
872
  bus system, i.e. the way the CPU talks to the other stuff inside
873
  your box. Other bus systems are ISA, EISA, Microchannel (MCA) or
874
  VESA. If you have PCI, say Y, otherwise N. Note1: MCA systems
875
  (notably some IBM PS/2's) are not supported by the standard kernels,
876
  but patches exist at
877
  http://www.undergrad.math.uwaterloo.ca/~cpbeaure/mca-linux.html on
878
  the WWW. Note2: some old PCI motherboards have BIOS bugs and may
879
  crash if "PCI bios support" is enabled (but they run fine without
880
  this option). The PCI-HOWTO, available via FTP (user: anonymous) in
881
  sunsite.unc.edu:/pub/Linux/docs/HOWTO, contains valuable information
882
  about which PCI hardware does work under Linux and which doesn't.
883
  If some of your PCI devices don't work and you get a warning during
884
  boot time ("man dmesg"), please follow the instructions at the top
885
  of include/linux/pci.h.
886
 
887
PCI bridge optimization (experimental)
888
CONFIG_PCI_OPTIMIZE
889
  This can improve access times for some hardware devices under
890
  certain BIOSes if your computer uses a PCI bus system. This is
891
  recommended; say Y.
892
 
893
Generic IDE (U)DMA support
894
CONFIG_BLK_DEV_TRITON
895
  If your PCI system uses an EIDE hard disk (as opposed to SCSI, say)
896
  and includes one of the Intel (U)DMA IDE Southbridge ICs (i82371FB,
897
  i82371SB or i82371AB), you will want to enable this option to allow
898
  use of bus-mastering DMA data transfers. This increases transfer
899
  rates and reduces latencies and CPU utilization. Read the comments in
900
  Documentation/ide.txt and Documentation/udma.txt.
901
  Check the file Documentation/Changes for location and latest version
902
  of the hdparm utility. There are now several more chipsets added, to
903
  include offboard PCI-IDE-UDMA cards and newer SiS and VIA chipsets.
904
  It is safe to say Y to this question, as long as your PCI bus is
905
  operating within specs (33MHz recommended).
906
 
907
Boot off-board chipsets first support
908
CONFIG_BLK_DEV_OFFBOARD
909
  Normally, IDE controllers built into the motherboard (on-board
910
  controllers) are assigned to ide0 and ide1 while those on add-in
911
  PCI cards (off-board controllers) are relegated to ide2 and ide3.
912
  Saying Y to here will reverse the situation, with off-board
913
  controllers on ide0/1 and on-board controllers on ide2/3. This
914
  can improve the usability of some boot managers such as LILO
915
  when booting from a drive on an off-board controller.
916
  Note that this will rearrange the order of the hd* devices and
917
  may require modification of fstab and other files.
918
  Check the file Documentation/udma.txt
919
  If in doubt, say N.
920
 
921
System V IPC
922
CONFIG_SYSVIPC
923
  Inter Process Communication is a suite of library functions and
924
  system calls which let processes ( = running programs) synchronize
925
  and exchange information. It is generally considered to be a good
926
  thing, and some programs won't run unless you enable this. In
927
  particular, if you want to run the DOS emulator dosemu under Linux
928
  (read the DOSEMU-HOWTO, available via FTP (user: anonymous) in
929
  sunsite.unc.edu:/pub/Linux/docs/HOWTO), you'll need to say Y here.
930
  You can find documentation about IPC in ipc.info, which is contained
931
  in sunsite.unc.edu:/pub/Linux/docs/man/info.tar.gz (extract with
932
  "tar xzvf filename"). These docs are in the info format which is
933
  used to document GNU software and can be read from within emacs
934
  ("Ctrl-h i") or with the program info ("man info"). Enabling this
935
  option enlarges your kernel by about 7kB. Just say Y.
936
 
937
Kernel support for ELF binaries
938
CONFIG_BINFMT_ELF
939
  ELF (Executable and Linkable Format) is a format for libraries and
940
  executables used across different architectures and operating
941
  systems. This option will enable your kernel to run ELF binaries and
942
  enlarge it by about 2kB. ELF support under Linux is quickly
943
  replacing the traditional Linux a.out formats (QMAGIC and ZMAGIC)
944
  because it is portable (this does *not* mean that you will be able
945
  to run executables from different architectures or operating
946
  systems!) and makes building run-time libraries very easy. Many new
947
  executables are distributed solely in ELF format. You definitely
948
  want to say Y here. Information about ELF is on the WWW at
949
  http://www.sjc.ox.ac.uk/users/barlow/elf-howto.html (To browse the
950
  WWW, you need to have access to a machine on the Internet that has
951
  one of the programs lynx, netscape or Mosaic).  If you find that
952
  after upgrading to Linux kernel 1.3 and saying Y here, you still
953
  can't run any ELF binaries (they just crash), then you'll have to
954
  install the newest ELF runtime libraries, including ld.so (check the
955
  file Documentation/Changes for location and latest version). If you
956
  want to compile this as a module ( = code which can be inserted in
957
  and removed from the running kernel whenever you want), say M here
958
  and read Documentation/modules.txt. Saying M or N here is dangerous
959
  because some crucial programs on your system might be in ELF format.
960
 
961
Compile kernel as ELF -- if your GCC is ELF-GCC
962
CONFIG_KERNEL_ELF
963
  The gcc version 2.7.0 and newer produces the new ELF binary format
964
  as default. If you have such a compiler (try "gcc -v"), say Y here,
965
  otherwise N.
966
  It is possible, albeit almost pointless, to compile the kernel in
967
  a.out (i.e. QMAGIC) format even if your compiler produces ELF as
968
  default. For that, you would have to say N here and change the
969
  variables LD and CC in the toplevel Makefile. Similarly, if your
970
  compiler produces a.out by default but is able to produce ELF, you
971
  can compile the kernel in ELF by saying Y here and editing the
972
  variables CC and LD in the toplevel Makefile.
973
 
974
Kernel support for A.OUT binaries
975
CONFIG_BINFMT_AOUT
976
  A.out (Assembler.OUTput) is a set of formats for libraries and
977
  executables used in the earliest versions of UNIX. Linux used the
978
  a.out formats QMAGIC and ZMAGIC until they were replaced with the
979
  ELF format.
980
  As more and more programs are converted to ELF, the use for a.out
981
  will gradually diminish. If you disable this option it will reduce
982
  your kernel by one page. This is not much and by itself does not
983
  warrant removing support. However its removal is a good idea if you
984
  wish to ensure that absolutely none of your programs will use this
985
  older executable format. If you don't know what to answer at this
986
  point then answer Y. If someone told you "You need a kernel with
987
  QMAGIC support" then you'll have to say Y here. You may answer M
988
  to compile a.out support as a module and later load the module when
989
  you want to use a program or library in a.out format. Saying M or N
990
  here is dangerous though, because some crucial programs on your
991
  system might still be in A.OUT format.
992
 
993
Kernel support for JAVA binaries
994
CONFIG_BINFMT_JAVA
995
  JAVA is an object oriented programming language developed by SUN;
996
  JAVA programs are compiled into "JAVA bytecode" which can then be
997
  interpreted by run time systems on many different operating systems.
998
  These JAVA binaries are becoming a universal executable format. This
999
  option allows you to run a Java binary just like any other Linux
1000
  program: by typing in its name. As more and more Java programs
1001
  become available, the use for this will gradually increase. You can
1002
  even execute HTML files containing JAVA applets ( = JAVA binaries)
1003
  if those files start with the string "". If you want to
1004
  use this, read Documentation/java.txt and the Java on Linux HOWTO,
1005
  available via FTP (user: anonymous) at
1006
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. You will then need to install
1007
  the run time system contained in the Java Developers Kit (JDK) as
1008
  described in the HOWTO. If you disable this option it will reduce
1009
  your kernel by about 4kB. This is not much and by itself does not
1010
  warrant removing support. However its removal is a good idea if you
1011
  do not have the JDK installed. If you don't know what to answer at
1012
  this point then answer Y. You may answer M for module support and
1013
  later load the module when you install the JDK or find an
1014
  interesting Java program that you can't live without.
1015
 
1016
Processor type
1017
CONFIG_M68000
1018
  This is the exact processor type of your M68K CPU. It is used to choose
1019
  which platforms (the hardware connected to the CPU) may be selected.  Only
1020
  one processor can be chosen, and this must be the appropriate type for
1021
  that platform.
1022
 
1023
Build for the Rt-Control, Inc uC68EZ328 uCsimm
1024
CONFIG_UCSIMM
1025
  The uCsimm model uC68EZ328 embedded control system on a SIMM stick.
1026
  Make sure to say yes to ROM disk (BLKMEM), ROMfs and cs8900 ethernet
1027
  as well to take advantage of the unique features of the device.
1028
  Online documentation is available at http://www.rt-control.com
1029
 
1030
Build for the PalmIII and predecessors
1031
CONFIG_PILOT
1032
  The PalmIII (and its previous versions, the Pilot 1000, Pilot 5000,
1033
  PalmPilot Personal, and PalmPilot Professional) is a PDA manufactured by
1034
  Palm Computing, Inc. (A subsidiary of U.S. Robotics, itself a subsidiary
1035
  of 3Com.) The PalmIII contains a Motorola 68328, and minimal hardware to
1036
  support battery operation, serial port, RAM/ROM expansion, and a touch
1037
  screen. The PalmIII version includes an IR interface.
1038
  To compile for this target, you must not choose any other targets,
1039
  and you must choose the M68328 processor.
1040
 
1041
Build for the SHGLCORE
1042
CONFIG_SHGLCORE
1043
  The Silver Hammer Group, Ltd., originally developed hardware running
1044
  uClinux, aport of Linux to non-MMU targets (and the 68K family of non-MMU
1045
  targets, in particular).  The SHGLCORE is a development target using the
1046
  Motorola 68332.  This option needs to become a generic 68332 target, you
1047
  likely want to say no here as there were only a handful of SHGLCORE boards
1048
  built.
1049
 
1050
Build for Motorola M68EZ328 Development board
1051
CONFIG_M68EZ328ADS
1052
  M68EZ328ADS board is a reference design board from Motorola, based on
1053
  Dragonball EZ (MC68EZ328) CPU. It has 4MB DRAM, 2MB FLASH and 256K SRAM
1054
  (which uClinux does not use). It also has a separate 68681 dual serial
1055
  port which is very instrumental fro debugging 68328 serial driver.
1056
 
1057
Build for Motorola M68EZ328 Development board (DRAM version)
1058
CONFIG_M68EZ328ADS_RAM
1059
  It is possible to build a kernel that will run from DRAM instead of FLASH.
1060
  This is useful during kernel development, since it eliminates the need to
1061
  reprogram FLASH every time. It assumes that the ROM disk image is located
1062
  in the beinning of the FLASH.
1063
 
1064
Build for Alma Electronics board
1065
CONFIG_ALMA_ANS
1066
  Alma Electronics developed a board, based on MC68EZ328. It has 2 MB DRAM,
1067
  2 MB FLASH, cs8900 Ethernet and DW16500 chip by DSP Group, connected to
1068
  the CPU via SPI interface.
1069
 
1070
Build for Alma Electronics board (DRAM version)
1071
CONFIG_ALMA_ANS_RAM
1072
  It is possible to build a kernel that will run from DRAM instead of FLASH.
1073
  This is useful during kernel development, since it eliminates the need to
1074
  reprogram FLASH every time. It assumes that the ROM disk image is located
1075
  in the beinning of the FLASH.
1076
 
1077
Reduce memory footprint
1078
CONFIG_REDUCE_MEMORY
1079
  This option reduces a number of tunable settings to make the Linux
1080
  kernel take up less memory at run-time. This setting is not recommended
1081
  in a desktop environment, but should not damage anything.
1082
 
1083
Processor type
1084
CONFIG_M386
1085
  This is the processor type of your CPU.  It is used for optimizing
1086
  purposes.  In order to compile a kernel that can run on all CPU
1087
  types (albeit not optimally fast), you can specify "386" here.  If
1088
  you specify "486" or "Pentium" or "PPro", then the kernel will run
1089
  on all of these CPUs: 486 and Pentium (=586) and Pentium Pro (=686).
1090
  Here are the settings recommended for greatest speed:
1091
   - "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX and
1092
     Cyrix/TI 486DLC/DLC2. Only "386" kernels will run on a 386 class
1093
     machine.
1094
   - "486" for the AMD/Cyrix/IBM/Intel DX4 or 486DX/DX2/SL/SX/SX2,
1095
     AMD/Cyrix 5x86, NexGen Nx586 and UMC U5D or U5S
1096
   - "Pentium" for the AMD K5, K6 and K6-3D, Cyrix MediaGX,
1097
     Cyrix/IBM/National Semiconductor 6x86 and GXm, IDT Centaur
1098
     WinChip C6, and Intel Pentium/Pentium MMX
1099
   - "PPro" for the Cyrix/IBM/National Semiconductor 6x86MX, MII and
1100
     Intel Pentium II/Pentium Pro
1101
  In rare cases, it can make sense to specify "Pentium" even if
1102
  running a 486: the kernel will be smaller but slightly slower.  On
1103
  the other hand, if you use a compiler before gcc 2.7 (say "gcc -v"
1104
  to find out), then you have to say "386" or "486" here even if
1105
  running on a Pentium or PPro machine.
1106
 
1107
  If you don't know what to do, say "386".
1108
 
1109
Compile the kernel into the ELF object format
1110
CONFIG_ELF_KERNEL
1111
  ELF (Executable and Linkable Format) is a format for libraries and
1112
  executables used across different architectures and operating
1113
  systems. This option will cause the resulting kernel to be in ELF
1114
  format, which is generally desirable, so say Y. However, it only
1115
  works if your compiler and linker can produce ELF code.
1116
 
1117
Is your ELF compiler an extra compiler
1118
CONFIG_EXTRA_ELF_COMPILER
1119
  If you have a linuxelf-gcc as opposed to linux-gcc, say Y,
1120
  otherwise N.
1121
 
1122
Generate little endian code
1123
CONFIG_CPU_LITTLE_ENDIAN
1124
  If your compiler is mipsel-linux-gcc or mipsel-linuxelf-gcc (as
1125
  opposed to mips-linux-gcc or mips-linuxelf-gcc), say Y here,
1126
  otherwise N. Most MIPS machines use little-endian code, but it might
1127
  be necessary to run older Mips systems, such as the Sony News and
1128
  MIPS RC3xxx, in big endian mode.
1129
 
1130
Enable loadable module support
1131
CONFIG_MODULES
1132
  Kernel modules are small pieces of compiled code which can be
1133
  inserted in or removed from the running kernel, using the
1134
  programs insmod and rmmod. This is described in the file
1135
  Documentation/modules.txt. Modules can be device drivers, file
1136
  systems, binary executable formats, and so on. If you think that
1137
  you may want to make use of modules with this kernel in the future,
1138
  then say Y here. If unsure, say Y.
1139
 
1140
Set version information on all symbols for modules
1141
CONFIG_MODVERSIONS
1142
  Usually, modules have to be recompiled whenever you switch to a new
1143
  kernel.  Enabling this option makes it possible, and safe, to use
1144
  the same modules even after compiling a new kernel; this requires
1145
  the program modprobe. All the software needed for module support is
1146
  in the modules package (check the file Documentation/Changes for
1147
  location and latest version).  NOTE: if you say Y here but don't
1148
  have the program genksyms (which is also contained in the above
1149
  mentioned modules package), then the building of your kernel will
1150
  fail.  If you are going to use modules that are generated from
1151
  non-kernel sources, you would benefit from this option. Otherwise
1152
  it's not that important.  So, N ought to be a safe bet.
1153
 
1154
Kernel daemon support
1155
CONFIG_KERNELD
1156
  Normally when you have selected some drivers and/or filesystems to
1157
  be created as loadable modules, you also have the responsibility to
1158
  load the corresponding module (via insmod/modprobe) before you can
1159
  use it.  If you select Y here, the kernel will take care of this all
1160
  by itself, together with the user level daemon "kerneld".  Note that
1161
  "kerneld" will also automatically unload all unused modules, so you
1162
  don't have to use "rmmod" either.
1163
  kerneld will also provide support for different user-level beeper
1164
  and screen blanker programs later on.
1165
  The "kerneld" daemon is included in the package "modules-1.2.8" and
1166
  later. You will probably want to read the kerneld mini-HOWTO,
1167
  available via FTP (user: anonymous) from
1168
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini. If unsure, say Y.
1169
 
1170
ARP daemon support (EXPERIMENTAL)
1171
CONFIG_ARPD
1172
  Normally, the kernel maintains an internal cache which maps IP
1173
  addresses to hardware addresses on the local network, so that
1174
  Ethernet/Token Ring/ etc. frames are sent to the proper address on
1175
  the physical networking layer.  For small networks having a few
1176
  hundred directly connected hosts or less, keeping this address
1177
  resolution (ARP) cache inside the kernel works well.  However,
1178
  maintaining an internal ARP cache does not work well for very large
1179
  switched networks, and will use a lot of kernel memory if TCP/IP
1180
  connections are made to many machines on the network.  By enabling
1181
  this option, the kernel's internal ARP cache will never grow to more
1182
  than 256 entries (the oldest entries are expired in a LIFO manner)
1183
  and communication will be attempted with an external ARP daemon,
1184
  arpd.  This code is still experimental.  If you do enable arpd
1185
  support, you should obtain a copy of arpd from
1186
  http://www.loran.com/~layes/arpd/index.html.  If unsure, say N.
1187
 
1188
TCP/IP networking
1189
CONFIG_INET
1190
  These are the protocols used on the Internet and on most local
1191
  Ethernets. The safest is to say Y here (which will enlarge your
1192
  kernel by about 35 kB), since some programs (e.g. the X window
1193
  system) use TCP/IP even if your machine is not connected to any
1194
  other computer. You will get the so-called loopback device which
1195
  allows you to ping yourself (great fun, that!). This option is also
1196
  necessary if you want to use the full power of term (term is a
1197
  program which gives you almost full Internet connectivity if you
1198
  have a regular dial up shell account on some Internet connected Unix
1199
  computer. Read the Term-HOWTO, available via FTP (user: anonymous)
1200
  on sunsite.unc.edu:/pub/Linux/docs/HOWTO).  Short answer: say Y.
1201
 
1202
IP: forwarding/gatewaying
1203
CONFIG_IP_FORWARD
1204
  People who want to use their Linux box as the router for a local
1205
  network (i.e. the computer responsible for distributing Internet
1206
  traffic to and from the machines in the local network and the
1207
  subnetworks) should say Y here (thereby enlarging their kernel by
1208
  about 5 kB). Note that in this case, you possibly have two Ethernet
1209
  devices in your computer: one for the "outside world" and one for
1210
  your local net. The kernel is not able to recognize both at boot
1211
  time without help; for details read the
1212
  Multiple-Ethernet-mini-HOWTO, available via FTP (user: anonymous) in
1213
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.  If your box is
1214
  connected to two networks, it may still make sense to say N here,
1215
  namely if you want to turn your box into a firewall protecting a
1216
  local network from the Internet. The Firewall-HOWTO tells you how to
1217
  do this. If your setup is more complex, say you are connected to
1218
  three networks and you want to act as a firewall between two of them
1219
  and route traffic for the others, you need to say Y here and enable
1220
  IP firewalling below. If you intend to use IP masquerading (i.e. IP
1221
  traffic from one of the local computers and destined for an outside
1222
  host is changed by your box so that it appears to come from you),
1223
  you'll have to say Y here and also to IP firewalling and IP
1224
  masquerading below. You should also say Y here if you want to
1225
  configure your box as a SLIP (the protocol for sending internet
1226
  traffic over telephone lines) or PPP (a better SLIP) server for
1227
  other people to dial into and your box is connected to a local
1228
  network at the same time. You would then most likely use proxy-ARP
1229
  (Address Resolution Protocol), explained in the Proxy-Arp mini howto
1230
  on sunsite in /pub/Linux/docs/HOWTO/mini. You also need to say Y
1231
  here if you want to run mrouted in order to do multicast routing as
1232
  used on the MBONE (a high bandwidth network on top of the Internet
1233
  which carries audio and video broadcasts) for example. In this case,
1234
  say Y to "IP: multicasting" and "IP: multicast routing" as well. If
1235
  unsure, say N.
1236
 
1237
IP: multicasting
1238
CONFIG_IP_MULTICAST
1239
  This is code for addressing several networked computers at once,
1240
  enlarging your kernel by about 2 kB. If you are using gated, the
1241
  daemon that updates your computer's routing tables, you will need to
1242
  have this option compiled in. You also need multicasting if you
1243
  intend to participate in the MBONE, a high bandwidth network on top
1244
  of the Internet which carries audio and video broadcasts. More
1245
  information about the MBONE is on the WWW at
1246
  http://www.best.com/~prince/techinfo/mbone.html (to browse the WWW,
1247
  you need to have access to a machine on the Internet that has one of
1248
  the programs lynx, netscape or Mosaic). Information about the
1249
  multicast capabilities of the various network cards is contained in
1250
  drivers/net/README.multicast. For most people, it's safe to say N.
1251
 
1252
IP: optimize as router not host
1253
CONFIG_IP_ROUTER
1254
  Some Linux network drivers use a technique called copy and checksum
1255
  to optimize host performance. For a machine which is forwarding most
1256
  packets to another host this is however a loss. This parameter turns
1257
  off copy and checksum from devices. It may make other changes in the
1258
  future.
1259
 
1260
IP: firewalling
1261
CONFIG_IP_FIREWALL
1262
  If you want to configure your Linux box as a firewall for a local
1263
  TCP/IP based network, say Y here. This will enlarge your kernel by
1264
  about 2kB. You may need to read the FIREWALL-HOWTO, available via
1265
  FTP (user: anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.
1266
  Also, you will need the ipfwadm tool (check the file
1267
  Documentation/Changes for location and latest version) to allow
1268
  selective blocking of internet traffic based on type, origin and
1269
  destination.  You need to enable IP firewalling in order to be able
1270
  to use IP masquerading (i.e. local computers can chat with an
1271
  outside host, but that outside host is made to think that it is
1272
  talking to the firewall box. Makes the local network completely
1273
  invisible and avoids the need to allocate valid IP host addresses
1274
  for the machines on the local net) or to use the IP packet
1275
  accounting to see what is using all your network bandwidth.  This
1276
  option is also needed when you want to enable the transparent
1277
  proxying support (makes the computers on the local network think
1278
  they're talking to a remote computer, while in reality the traffic
1279
  is redirected by your Linux firewall to a local proxy server).
1280
 
1281
IP: accounting
1282
CONFIG_IP_ACCT
1283
  This keeps track of your IP network traffic and produces some
1284
  statistics. Usually, you only want to say Y here if your box will be
1285
  a router or a firewall for some local network, in which case you
1286
  naturally should have said Y to IP forwarding/gatewaying resp. IP
1287
  firewalling. The data is accessible with "cat /proc/net/ip_acct", so
1288
  you want to say Y to the /proc filesystem below, if you say Y here.
1289
  To specify what exactly should be recorded, you need the tool
1290
  ipfwadm (check the file Documentation/Changes for location and
1291
  latest version).
1292
 
1293
IP: tunneling
1294
CONFIG_NET_IPIP
1295
  Tunneling means encapsulating data of one protocol type within
1296
  another protocol and sending it over a channel that understands the
1297
  encapsulating protocol. This particular tunneling driver implements
1298
  encapsulation of IP within IP, which sounds kind of pointless, but
1299
  can be useful if you want to make your (or some other) machine
1300
  appear on a different network than it physically is, or to use
1301
  mobile-IP facilities (allowing laptops to seamlessly move between
1302
  networks without changing their IP addresses; check out
1303
  http://anchor.cs.binghamton.edu/~mobileip/LJ/index.html). Enabling
1304
  this option will produce two modules ( = code which can be inserted
1305
  in and removed from the running kernel whenever you want), one
1306
  encapsulator and one decapsulator. You can read details in
1307
  drivers/net/README.tunnel. Most people can say N.
1308
 
1309
IP: firewall packet logging
1310
CONFIG_IP_FIREWALL_VERBOSE
1311
  This gives you information about what your firewall did with packets
1312
  it received.  The information is handled by the klogd demon which is
1313
  responsible for kernel messages ("man klogd").
1314
 
1315
IP: transparent proxying (EXPERIMENTAL)
1316
CONFIG_IP_TRANSPARENT_PROXY
1317
  This enables your Linux firewall to transparently redirect any
1318
  network traffic originating from the local network and destined
1319
  for a remote host to a local server, called a "transparent proxy
1320
  server".  This makes the local computers think they are talking to
1321
  the remote end, while in fact they are connected to the local
1322
  proxy. Redirection is activated by defining special input firewall
1323
  rules (using the ipfwadm utility) and/or by doing an appropriate
1324
  bind() system call.
1325
 
1326
IP: masquerading
1327
CONFIG_IP_MASQUERADE
1328
  If one of the computers on your local network for which your Linux
1329
  box acts as a firewall wants to send something to the outside, your
1330
  box can "masquerade" as that host, i.e. it forwards the traffic to
1331
  the intended destination, but makes it look like it came from the
1332
  firewall box itself. It works both ways: if the outside host
1333
  answers, the firewall will silently forward the traffic to the
1334
  corresponding local computer. This way, the computers on your local
1335
  net are completely invisible to the outside world, even though they
1336
  can reach the outside and can be reached. This makes it possible to
1337
  have the computers on the local network participate on the Internet
1338
  even if they don't have officially registered IP addresses.  (This
1339
  last problem can also be solved by connecting the Linux box to the
1340
  Internet using SLiRP [SLiRP is a SLIP/PPP emulator that works if you
1341
  have a regular dial up shell account on some UNIX computer; get it
1342
  from ftp://sunsite.unc.edu/pub/Linux/system/Network/serial/].)
1343
  Details on how to set things up are contained in the IP Masquerading
1344
  FAQ, available at http://www.indyramp.com/masq/
1345
  To use masquerading you must also enable Network Firewalls, IP
1346
  forwarding/gatewaying, IP firewalling and (ideally, but optionally)
1347
  IP always defragment.
1348
  If you want this, say Y.
1349
 
1350
IP: MS PPTP masq support (EXPERIMENTAL)
1351
CONFIG_IP_MASQUERADE_PPTP
1352
  Support for masquerading of the GRE data channel portion of the PPTP
1353
  Virtual Private Network protocol.
1354
  If you are masquerading a PPTP client or server you need to enable
1355
  this in addition to regular IP Masquerade.
1356
  See http://www.wolfenet.com/~jhardin/ip_masq_pptp.html for more details.
1357
 
1358
IP: MS PPTP Call ID masq support (EXPERIMENTAL)
1359
CONFIG_IP_MASQUERADE_PPTP_MULTICLIENT
1360
  Enabling this adds code to masquerade PPTP Call IDs, which allows
1361
  more than one masqueraded client to access the same server.
1362
  This only needs to be enabled if you are masquerading more than one
1363
  client, and if those clients will try to access the same PPTP server
1364
  at the same time.
1365
  You do NOT need to enable this if you are masquerading a PPTP
1366
  server, regardless of how many clients will be accessing it.
1367
 
1368
IP: MS PPTP masq debugging
1369
DEBUG_IP_MASQUERADE_PPTP
1370
  Enables PPTP Masquerade debugging messages. This should be disabled
1371
  for normal use once you have PPTP masq working, as it will cause
1372
  your system logs to quickly grow rather large. Enable verbose
1373
  debugging for more detailed information.
1374
 
1375
IP: IPSEC ESP & ISAKMP masq support (EXPERIMENTAL)
1376
CONFIG_IP_MASQUERADE_IPSEC
1377
  Support for limited masquerading of the IPSEC ESP network encryption
1378
  and ISAKMP key-exchange protocols.
1379
  If you are masquerading an IPSEC client you need to enable this in
1380
  addition to regular IP Masquerade.
1381
  Note that this may not successfully masquerade all types of
1382
  IPSEC-based encryption, as some options in the protocol offer a
1383
  cryptographic checksum across the IP addresses, which prevents the
1384
  masqueraded packets from being accepted.
1385
 
1386
IP: IPSEC masq table lifetime (minutes)
1387
CONFIG_IP_MASQUERADE_IPSEC_EXPIRE
1388
  After a period of inactivity IPSEC masq table entries expire and are
1389
  removed. When this happens inbound traffic can no longer be routed
1390
  to the masqueraded host until new outbound traffic creates a new
1391
  masq table entry.
1392
  For greatest reliability, your IPSEC rekey interval should be less
1393
  than the table entry lifetime. If your rekey interval is greater
1394
  than thirty minutes you will improve security by reducing it to
1395
  thirty minutes. If you don't want to do that, then increase the masq
1396
  table entry lifetime. Note that doing this will increase the clutter
1397
  in the IPSEC masq table, as old table entries will persist for this
1398
  many minutes after a rekey.
1399
  The minimum lifetime is 15 minutes. Decreasing the lifetime will
1400
  interfere with sessions that are idle for long periods of time.
1401
 
1402
IP: IPSEC masq debugging
1403
DEBUG_IP_MASQUERADE_IPSEC
1404
  Enables IPSEC Masquerade debugging messages. This should be disabled
1405
  for normal use once you have IPSEC masq working, as it will cause
1406
  your system logs to quickly grow rather large. Enable verbose
1407
  debugging for more detailed information.
1408
 
1409
IP: ipautofw masquerading (EXPERIMENTAL)
1410
CONFIG_IP_MASQUERADE_IPAUTOFW
1411
  Richard Lynch's ipautofw allows masquerading to work with protocols
1412
  which do not (as yet) have specific protocol helpers.  Its source,
1413
  and other information, is available at
1414
  ftp://ftp.netis.com/pub/members/rlynch/.
1415
 
1416
IP: ICMP masquerading
1417
CONFIG_IP_MASQUERADE_ICMP
1418
  The basic masquerade code described for CONFIG_IP_MASQUERADE only
1419
  handles TCP or UDP packets (and ICMP errors for existing
1420
  connections).  This option adds additional support for masquerading
1421
  ICMP packets, such as ping or the probes used by the Windows 95
1422
  tracert program.
1423
  If you want this, say Y.
1424
 
1425
IP: always defragment
1426
CONFIG_IP_ALWAYS_DEFRAG
1427
  This option means that all incoming fragments ( = parts of IP
1428
  packets that arose when some host between origin and destination
1429
  decided that the IP packets were too large and cut them in pieces)
1430
  will be reassembled (defragmented) before being processed, even if
1431
  they are about to be forwarded.  This option is highly recommended
1432
  if you have enabled the masquerading support (CONFIG_IP_MASQUERADE),
1433
  because this facility requires that second and further fragments can
1434
  be related to TCP or UDP port numbers, which are only stored in the
1435
  first fragment. When using IP firewall support (CONFIG_IP_FIREWALL),
1436
  you might also want to enable this option, to have a more reliable
1437
  firewall (otherwise second and further fragments will always be
1438
  accepted by the firewall).  When using transparent proxying
1439
  (CONFIG_IP_TRANSPARENT_PROXY), this option is implicit, although it
1440
  is safe to say N here.  Do not say Y to this option except when
1441
  running either a firewall that is the sole link to your network or
1442
  a transparent proxy.
1443
  Never ever say Y to this for a normal router or host.
1444
 
1445
IP: aliasing support
1446
CONFIG_IP_ALIAS
1447
  Sometimes it is useful to give several addresses to a single network
1448
  interface ( = serial port or Ethernet card).  The most common case
1449
  is that you want to serve different WWW documents to the outside
1450
  according to which of your host names they used to connect to you.
1451
  This is explained in detail on the WWW at
1452
  http://www.thesphere.com/~dlp/TwoServers/ (to browse the WWW, you
1453
  need to have access to a machine on the Internet that has one of the
1454
  programs lynx, netscape or Mosaic).  Another scenario would be that
1455
  there are two logical networks living on your local Ethernet and you
1456
  want to access them both with the same Ethernet card.  The
1457
  configuration of these alias addresses is done with a special name
1458
  syntax explained in Documentation/networking/alias.txt.  If you want
1459
  this, say Y. Most people don't need it and say N.
1460
 
1461
IP: multicast routing (EXPERIMENTAL)
1462
CONFIG_IP_MROUTE
1463
  This is used if you want your machine to act as a router for IP
1464
  packets that have several destination addresses. It is needed on the
1465
  MBONE, a high bandwidth network on top of the Internet which carries
1466
  audio and video broadcasts. In order to do that, you would most
1467
  likely run the program mrouted. Information about the multicast
1468
  capabilities of the various network cards is contained in
1469
  drivers/net/README.multicast. If you haven't heard about it, you
1470
  don't need it.
1471
 
1472
PC/TCP compatibility mode
1473
CONFIG_INET_PCTCP
1474
  If you have been having difficulties telnetting to your Linux
1475
  machine from a DOS system that uses (broken) PC/TCP networking
1476
  software (all versions up to OnNet 2.0) over your local Ethernet try
1477
  enabling this option.  Everyone else says N.
1478
  People having problems with NCSA telnet should see the file
1479
  linux/Documentation/networking/ncsa-telnet.
1480
 
1481
Reverse ARP
1482
CONFIG_INET_RARP
1483
  Since you asked: if there are (usually diskless or portable)
1484
  machines on your local network that know their hardware Ethernet
1485
  addresses but don't know their IP addresses upon startup, they can
1486
  send out a Reverse Address Resolution Protocol (RARP) request to
1487
  find out their own IP addresses. Diskless Sun 3 machines use this
1488
  procedure at boot time. If you want your Linux box to be able to
1489
  *answer* such requests, say Y here; you'd have to run the program
1490
  rarp ("man rarp") on your box. If you actually want to use a
1491
  diskless Sun 3 machine as an Xterminal to Linux, say Y here and
1492
  fetch Linux-Xkernel from
1493
  ftp://sunsite.unc.edu/pub/Linux/system/Network/boot.net/.  Superior
1494
  solutions to the problem of booting and configuring machines over a
1495
  net connection are given by the protocol BOOTP and its successor
1496
  DHCP. See the DHCP FAQ
1497
  http://web.syr.edu/~jmwobus/comfaqs/dhcp.faq.html for details.  If
1498
  you want to compile RARP support as a module ( = code which can be
1499
  inserted in and removed from the running kernel whenever you want),
1500
  say M here and read Documentation/modules.txt.  If you don't
1501
  understand a word of the above, say N and rest in peace.
1502
 
1503
Assume subnets are local
1504
CONFIG_INET_SNARL
1505
  Say Y if you are on a subnetted network with all machines connected
1506
  by Ethernet segments only, as this option optimizes network access
1507
  for this special case.  If there are other connections, e.g. SLIP
1508
  links, between machines of your IP network, say N.  If in doubt,
1509
  say N. The PATH mtu discovery facility will cover most cases anyway.
1510
 
1511
Disable Path MTU Discovery (normally enabled)
1512
CONFIG_NO_PATH_MTU_DISCOVERY
1513
  MTU (maximal transfer unit) is the size of the chunks we send out
1514
  over the net.  "Path MTU Discovery" means that, instead of always
1515
  sending very small chunks, we start out sending big ones and if we
1516
  then discover that some host along the way likes its chunks smaller,
1517
  we adjust to a smaller size.  This is good, so most people say N.
1518
  However, some versions of DOS NCSA telnet (and other software) are
1519
  broken and can only connect to your Linux machine if you say Y here.
1520
  See also Documentation/networking/ncsa-telnet for the location of
1521
  fixed NCSA telnet clients.
1522
 
1523
Disable NAGLE algorithm (normally enabled)
1524
CONFIG_TCP_NAGLE_OFF
1525
  The NAGLE algorithm works by requiring an acknowledgment before
1526
  sending small IP frames ( = packets).  This keeps tiny telnet and
1527
  rlogin packets from congesting Wide Area Networks.  Most people
1528
  strongly recommend to say N here, thereby leaving NAGLE enabled.
1529
  Those programs that would benefit from disabling this facility can
1530
  do it on a per connection basis themselves.
1531
 
1532
IP: Drop source routed frames
1533
CONFIG_IP_NOSR
1534
  Usually, the originator of an IP frame ( = packet) specifies only
1535
  the destination, and the hosts along the way do the routing, i.e.
1536
  they decide how to forward the frame.  However, there is a feature
1537
  of the IP protocol that allows to specify the full route for a given
1538
  frame already at its origin. A frame with such a fully specified
1539
  route is called "source routed".  The question now is whether we
1540
  should honour these route requests when such frames arrive, or if
1541
  we should drop all those frames instead.  Honouring them can
1542
  introduce security problems (and is rarely a useful feature), and
1543
  hence it is recommended that you say Y here unless you really know
1544
  what you're doing.
1545
 
1546
IP: Allow large windows (not recommend if <16MB of memory)
1547
CONFIG_SKB_LARGE
1548
  On high speed, long distance networks the performance limit on
1549
  networking becomes the amount of data a machine can buffer until the
1550
  other end confirms its reception.  (At 45Mbit/second there are a lot
1551
  of bits between New York and London...)  This option allows larger
1552
  amounts of data to be "in flight" at a given time.  It also means a
1553
  user process can require a lot more memory for network buffers and
1554
  thus this option is best only used on machines with 16MB of
1555
  memory or higher.
1556
  Unless you are using long links with end to end speeds of over 2Mbit
1557
  a second or satellite links this option will make no difference to
1558
  performance.
1559
 
1560
The IPX protocol
1561
CONFIG_IPX
1562
  This is support for the Novell networking protocol, IPX, commonly
1563
  used for local networks of Windows machines. You need it if you want
1564
  to access Novell NetWare file or print servers using the Linux
1565
  Novell client ncpfs (available via FTP (user: anonymous) from
1566
  sunsite.unc.edu:/pub/Linux/system/Filesystems/) or from within the
1567
  Linux DOS emulator dosemu (read the DOSEMU-HOWTO, available in
1568
  sunsite.unc.edu:/pub/Linux/docs/HOWTO). In order to do the former,
1569
  you'll also have to say Y to "NCP filesystem support", below. To
1570
  turn your Linux box into a fully featured NetWare file server and
1571
  IPX router, say Y here and fetch either lwared from
1572
  sunsite.unc.edu:/pub/Linux/system/Network/daemons/ or mars_nwe from
1573
  ftp.gwdg.de:/pub/linux/misc/ncpfs. For more information, read the
1574
  IPX-HOWTO in sunsite.unc.edu:/pub/Linux/docs/howto. The IPX driver
1575
  would enlarge your kernel by about 5 kB. This driver is also
1576
  available as a module ( = code which can be inserted in and removed
1577
  from the running kernel whenever you want). If you want to compile
1578
  it as a module, say M here and read Documentation/modules.txt.
1579
  Unless you want to integrate your Linux box with a local Novell
1580
  network, say N.
1581
 
1582
Full internal IPX network
1583
CONFIG_IPX_INTERN
1584
  The full internal IPX network enables you to allocate sockets on
1585
  different virtual nodes of the internal network.  This is done by
1586
  evaluating the field sipx_node of the socket address given to the
1587
  bind call.  So applications should always initialize the node field
1588
  to 0 when binding a socket on the primary network.  In this case the
1589
  socket is assigned the default node that has been given to the
1590
  kernel when the internal network was created.  By enabling the full
1591
  internal IPX network the cross-forwarding of packets targeted at
1592
  'special' sockets to sockets listening on the primary network is
1593
  disabled.  This might break existing applications, especially
1594
  RIP/SAP daemons.  A RIP/SAP daemon that works well with the full
1595
  internal net can be found on ftp.gwdg.de:/pub/linux/misc/ncpfs.
1596
  If you don't know what you are doing, say N.
1597
 
1598
AppleTalk DDP
1599
CONFIG_ATALK
1600
  AppleTalk is the way Apple computers speak to each other on a
1601
  network.  EtherTalk is the name used for AppleTalk over Ethernet
1602
  and LocalTalk is AppleTalk over the Apple serial links.  If your
1603
  Linux box is connected to such a network and you want to join the
1604
  conversation, say Y.  You will need to use the netatalk package
1605
  so that your Linux box can act as a print and file server for
1606
  macs as well as access AppleTalk printers.  Check out
1607
  http://artoo.hitchcock.org/~flowerpt/projects/linux-netatalk/ on
1608
  the WWW for details (to browse the WWW, you need to have access to
1609
  a machine on the Internet that has one of the programs lynx,
1610
  netscape or Mosaic).  The NET-2-HOWTO, available via FTP (user:
1611
  anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO contains
1612
  valuable information as well.  This driver is also available as a
1613
  module ( = code which can be inserted in and removed from the
1614
  running kernel whenever you want).  If you want to compile it as a
1615
  module, say M here and read Documentation/modules.txt.  I hear that
1616
  the GNU boycott of Apple is over, so even politically correct people
1617
  are allowed to say Y here.  At the time the kernel is released the
1618
  localtalk drivers are not yet ready to ship.  The kernel however
1619
  supports localtalk and when such drivers become available all you
1620
  will need to do is download and install the localtalk driver.
1621
 
1622
Amateur Radio AX.25 Level 2
1623
CONFIG_AX25
1624
  This is the protocol used for computer communication over amateur
1625
  radio. It is either used by itself for point-to-point links, or to
1626
  carry other protocols such as TCP/IP. To use it, you need a device
1627
  that connects your Linux box to your amateur radio. You can either
1628
  use a low speed TNC (a Terminal Node Controller acts as a kind of
1629
  modem connecting your computer's serial port to your radio's
1630
  microphone input and speaker output) supporting the KISS protocol or
1631
  the various SCC cards that are supported by the Ottawa PI, the
1632
  Gracilis Packetwin and the generic Z8530 driver. Another option are
1633
  the Baycom modem serial and parallel port hacks (supported by their
1634
  own driver) and the other baycom cards (SCC) (supported by the Z8530
1635
  driver).  Information about where to get supporting software for
1636
  Linux amateur radio as well as information about how to configure an
1637
  AX.25 port is contained in the HAM-HOWTO, available via FTP (user:
1638
  anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO. You might also
1639
  want to check out the file Documentation/networking/ax25.txt in the
1640
  kernel source. More information about digital amateur radio in
1641
  general is on the WWW at http://www.cis.ohio-state.edu/
1642
  /hypertext/faq/usenet/radio/ham-radio/digital-faq/faq.html
1643
  (To browse the WWW, you need to have access to a machine on the
1644
  Internet that has one of the programs lynx, netscape or Mosaic).
1645
 
1646
Amateur Radio NET/ROM
1647
CONFIG_NETROM
1648
  NET/ROM is a network layer protocol on top of AX.25 useful for
1649
  routing.  A comprehensive listing of all the software for Linux
1650
  amateur radio users as well as information about how to configure an
1651
  AX.25 port is contained in the HAM-HOWTO, available via FTP (user:
1652
  anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.  You also might
1653
  also want to check out the file Documentation/networking/ax25.txt.
1654
  More information about digital amateur radio in general is on the
1655
  WWW at http://www.cis.ohio-state.edu
1656
  /hypertext/faq/usenet/radio/ham-radio/digital-faq/faq.html
1657
  (To browse the WWW, you need to have access to a machine on the
1658
  Internet that has one of the programs lynx, netscape or Mosaic).
1659
 
1660
AX.25 over Ethernet
1661
CONFIG_BPQETHER
1662
  AX.25 is the protocol used for computer communication over amateur
1663
  radio. If you say Y here, you will be able to send and receive AX.25
1664
  traffic over Ethernet (also called "BPQ AX.25"), which could be
1665
  useful if some other computer on your local network has a direct
1666
  amateur radio connection.
1667
 
1668
Bridging (EXPERIMENTAL)
1669
CONFIG_BRIDGE
1670
  If you say Y here, then your Linux box will be able to act as an
1671
  Ethernet bridge, which means that the different Ethernet segments it
1672
  is connected to will appear as one Ethernet to the participants.
1673
  Several such bridges can work together to create even larger
1674
  networks of Ethernets using the IEEE802.1 spanning tree algorithm.
1675
  As this is a standard, Linux bridges will interwork properly with
1676
  other third party bridge products. In order to use this, you'll need
1677
  the bridge configuration tools available via FTP (user: anonymous)
1678
  from shadow.cabi.net. Note that if your box acts as a bridge, it
1679
  probably contains several Ethernet devices, but the kernel is not
1680
  able to recognize more than one at boot time without help; for
1681
  details read the Multiple-Ethernet-mini-HOWTO, available via FTP
1682
  (user: anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
1683
  The Bridging code is still in test. If unsure, say N.
1684
 
1685
Kernel/User network link driver (EXPERIMENTAL)
1686
CONFIG_NETLINK
1687
  This driver allows for two-way communication between certain parts
1688
  of the kernel or modules and user processes; the user processes are
1689
  able to read from and write to character special files in the /dev
1690
  directory having major mode 36.  So far, the kernel uses it to
1691
  publish some network related information if you enable "Routing
1692
  messages", below.  Say Y if you want to experiment with it; this is
1693
  EXPERIMENTAL code, which means that it need not be completely
1694
  stable.  You need to include this if you want to use arpd, a daemon
1695
  that helps keep the internal ARP cache (a mapping between IP
1696
  addresses and hardware addresses on the local network) small.
1697
  If unsure, say N.
1698
 
1699
Routing messages
1700
CONFIG_RTNETLINK
1701
  If you enable this and create a character special file /dev/route
1702
  with major number 36 and minor number 0 using mknod ("man mknod"),
1703
  you can read some network related routing information from that
1704
  file. Everything you write to that file will be discarded.
1705
 
1706
SCSI support?
1707
CONFIG_SCSI
1708
  If you want to use a SCSI hard disk, SCSI tapedrive, SCSI CDROM or
1709
  any other SCSI device under Linux, say Y and make sure that you know
1710
  the name of your SCSI host adapter (the card inside your computer
1711
  that "speaks" the SCSI protocol), because you will be asked for it.
1712
  You also need to say Y here if you want support for the parallel
1713
  port version of the 100MB IOMEGA ZIP drive.  Please read the
1714
  SCSI-HOWTO, available via FTP (user: anonymous) in sunsite.unc.edu:
1715
  /pub/Linux/docs/HOWTO.  This driver is also available as a module
1716
  ( = code which can be inserted in and removed from the running
1717
  kernel whenever you want).  If you want to compile it as a module,
1718
  say M here and read Documentation/modules.txt and
1719
  Documentation/scsi.txt.
1720
 
1721
SCSI disk support
1722
CONFIG_BLK_DEV_SD
1723
  If you want to use a SCSI hard disk or the SCSI or parallel port
1724
  version of the IOMEGA ZIP drive under Linux, say Y and read the
1725
  SCSI-HOWTO, available via FTP (user: anonymous) in sunsite.unc.edu:
1726
  /pub/Linux/docs/HOWTO. This is NOT for SCSI CDROMs.
1727
  This driver is also available as a module ( = code which can be
1728
  inserted in and removed from the running kernel whenever you want).
1729
  If you want to compile it as a module, say M here and read
1730
  Documentation/modules.txt and Documentation/scsi.txt.
1731
 
1732
SCSI tape support
1733
CONFIG_CHR_DEV_ST
1734
  If you want to use a SCSI tapedrive under Linux, say Y and read the
1735
  SCSI-HOWTO, available via FTP (user: anonymous) in sunsite.unc.edu:
1736
  /pub/Linux/docs/HOWTO and drivers/scsi/README.st in the kernel
1737
  source. This is NOT for SCSI CDROMs. This driver is also available
1738
  as a module ( = code which can be inserted in and removed from the
1739
  running kernel whenever you want). If you want to compile it as a
1740
  module, say M here and read Documentation/modules.txt and
1741
  Documentation/scsi.txt.
1742
 
1743
SCSI CDROM support
1744
CONFIG_BLK_DEV_SR
1745
  If you want to use a SCSI CDROM under Linux, say Y and read the
1746
  SCSI-HOWTO and the CDROM-HOWTO from sunsite.unc.edu:
1747
  /pub/Linux/docs/HOWTO. Also make sure to enable the ISO9660
1748
  filesystem later. This driver is also available as a module ( = code
1749
  which can be inserted in and removed from the running kernel
1750
  whenever you want). If you want to compile it as a module, say M
1751
  here and read Documentation/modules.txt and Documentation/scsi.txt.
1752
 
1753
SCSI generic support
1754
CONFIG_CHR_DEV_SG
1755
  If you want to use SCSI scanners, synthesizers or CD-writers or just
1756
  about anything having "SCSI" in its name other than hard disks,
1757
  CDROMs or tapes, say Y here. Those won't be supported by the kernel
1758
  directly, so you need some additional software which knows how to
1759
  talk to these devices using the SCSI protocol. For CD-writers, you
1760
  would need the program cdwrite, available via FTP (user: anonymous)
1761
  from sunsite.unc.edu:/pub/Linux/utils/disk-management; for other
1762
  devices, it's possible that you'll have to write the driver software
1763
  yourself, so have a look at the SCSI-HOWTO and at the
1764
  SCSI-Programming-HOWTO, both available via FTP (user: anonymous) in
1765
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. If you want to compile this
1766
  as a module ( = code which can be inserted in and removed from the
1767
  running kernel whenever you want), say M here and read
1768
  Documentation/modules.txt and Documentation/scsi.txt.
1769
 
1770
Probe all LUNs on each SCSI device
1771
CONFIG_SCSI_MULTI_LUN
1772
  If you have a SCSI device that supports more than one LUN (Logical
1773
  Unit Number), e.g. a CD jukebox, and only one LUN is detected, you
1774
  can say Y here to force the SCSI driver to probe for multiple LUNs.
1775
  A SCSI device with multiple LUNs acts logically like multiple SCSI
1776
  devices.  The vast majority of SCSI devices have only one LUN, and
1777
  so most people can say N here and should in fact do so, because it
1778
  is safer.
1779
 
1780
Verbose SCSI error reporting (kernel size +=12K)
1781
CONFIG_SCSI_CONSTANTS
1782
  The error messages regarding your SCSI hardware will be easier to
1783
  understand if you enable this; it will enlarge your kernel by about
1784
  12KB.  If in doubt, say Y.
1785
 
1786
AdvanSys SCSI support
1787
CONFIG_SCSI_ADVANSYS
1788
  This is a driver for all SCSI host adapters manufactured by
1789
  AdvanSys. It is documented in the kernel source in
1790
  drivers/scsi/advansys.c. This driver is also available as a module
1791
  ( = code which can be inserted in and removed from the running
1792
  kernel whenever you want). If you want to compile it as a module,
1793
  say M here and read Documentation/modules.txt.
1794
 
1795
Adaptec AHA152X/2825 support
1796
CONFIG_SCSI_AHA152X
1797
  This is support for the AHA-1510, AHA-1520, AHA-1522, and AHA-2825
1798
  SCSI host adapters. It is explained in section 3.3 of the
1799
  SCSI-HOWTO, available via FTP (user: anonymous) at sunsite.unc.edu:
1800
  /pub/Linux/docs/HOWTO. You might also want to read the comments at
1801
  the top of drivers/scsi/aha152x.c. This driver is also available as
1802
  a module ( = code which can be inserted in and removed from the
1803
  running kernel whenever you want). If you want to compile it as a
1804
  module, say M here and read Documentation/modules.txt.
1805
 
1806
Adaptec AHA1542 support
1807
CONFIG_SCSI_AHA1542
1808
  This is support for a SCSI host adapter. It is explained in section
1809
  3.4 of the SCSI-HOWTO, available via FTP (user: anonymous) at
1810
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  Note that Trantor was
1811
  recently purchased by Adaptec, and some former Trantor products are
1812
  being sold under the Adaptec name.  If it doesn't work out of the
1813
  box, you may have to change some settings in drivers/scsi/aha1542.h.
1814
  If you want to compile this as a module ( = code which can be
1815
  inserted in and removed from the running kernel whenever you want),
1816
  say M here and read Documentation/modules.txt.
1817
 
1818
Adaptec AHA1740 support
1819
CONFIG_SCSI_AHA1740
1820
  This is support for a SCSI host adapter.  It is explained in
1821
  section 3.5 of the SCSI-HOWTO, available via FTP (user: anonymous)
1822
  at sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If it doesn't work out
1823
  of the box, you may have to change some settings in
1824
  drivers/scsi/aha1740.h. This driver is also available as a module
1825
  ( = code which can be inserted in and removed from the running
1826
  kernel whenever you want). If you want to compile it as a module,
1827
  say M here and read Documentation/modules.txt.
1828
 
1829
Adaptec AIC7xxx chipset SCSI controller support
1830
CONFIG_SCSI_AIC7XXX
1831
  This is support for the various aic7xxx based Adaptec SCSI
1832
  controllers. These include the 274x EISA cards; 284x VLB cards; 2902,
1833
  2910, 293x, 294x, 394x, 3985 and several other PCI and motherboard based
1834
  SCSI controllers from Adaptec.  It does not support the AAA-13x RAID
1835
  controllers from Adaptec, nor will it likely ever support them.  It
1836
  does not support the 2920 cards from Adaptec that use the Future Domain
1837
  SCSI controller chip.  For those cards, you need the "Future Domain
1838
  16xx SCSI support" driver.
1839
 
1840
  In general, if the controller is based on an Adaptec SCSI controller
1841
  chip from the aic777x series or the aic78xx series, it should work.  The
1842
  only exception is the 7810 which is specifically not supported (that's the
1843
  RAID controller chip on the AAA-13x cards).
1844
 
1845
  Information on the configuration options for this controller can be
1846
  found by checking the help file for each of the available
1847
  configuration options. You should read drivers/scsi/README.aic7xxx
1848
  at a minimum before contacting the maintainer with any questions.
1849
  The SCSI-HOWTO, available via FTP (user: anonymous) at
1850
  ftp://metalab.unc.edu/pub/Linux/docs/HOWTO can also be of great help.
1851
 
1852
  If you want to compile this driver as a module ( = code which can be
1853
  inserted in and removed from the running kernel whenever you want),
1854
  say M here and read Documentation/modules.txt. The module will be
1855
  called aic7xxx.o.
1856
 
1857
Enable or Disable Tagged Command Queueing by default
1858
CONFIG_AIC7XXX_TCQ_ON_BY_DEFAULT
1859
  This option causes the aic7xxx driver to attempt to use tagged command
1860
  queueing on any devices that claim to support it.  If this is set to yes,
1861
  you can still turn off TCQ on troublesome devices with the use of the
1862
  tag_info boot parameter.  See /usr/src/linux/drivers/scsi/README.aic7xxx
1863
  for more information on that and other aic7xxx setup commands.  If this
1864
  option is turned off, you may still enable TCQ on known good devices by
1865
  use of the tag_info boot parameter.
1866
 
1867
  If you are unsure about your devices then it is safest to say N here.
1868
 
1869
  However, TCQ can increase performance on some hard drives by as much
1870
  as 50% or more, so I would recommend that if you say N here, that you
1871
  at least read the README.aic7xxx file so you will know how to enable
1872
  this option manually should your drives prove to be safe in regards
1873
  to TCQ.
1874
 
1875
  Conversely, certain drives are known to lock up or cause bus resets when
1876
  TCQ is enabled on them.  If you have a Western Digital Enterprise SCSI
1877
  drive for instance, then don't even bother to enable TCQ on it as the
1878
  drive will become unreliable, and it will actually reduce performance.
1879
 
1880
Default number of TCQ commands per device
1881
CONFIG_AIC7XXX_CMDS_PER_DEVICE
1882
  Specify the number of commands you would like to allocate per SCSI
1883
  device when Tagged Command Queueing (TCQ) is enabled on that device.
1884
 
1885
  Reasonable figures are in the range of 8 to 24 commands per device,
1886
  but depending on hardware could be increased or decreased from that
1887
  figure. If the number is too high for any particular device, the
1888
  driver will automatically compensate usually after only 10 minutes
1889
  of uptime. It will not hinder performance if some of your devices
1890
  eventually have their command depth reduced, but is a waste of memory
1891
  if all of your devices end up reducing this number down to a more
1892
  reasonable figure.
1893
 
1894
  NOTE: Certain very broken drives are known to lock up when given more
1895
  commands than they like to deal with.  Quantum Fireball drives are the
1896
  most common in this category.  For the Quantum Fireball drives I would
1897
  suggest no more than 8 commands per device.
1898
 
1899
  Default: 8
1900
 
1901
Collect statistics to report in /proc
1902
CONFIG_AIC7XXX_PROC_STATS
1903
  This option tells the driver to keep track of how many commands have
1904
  been sent to each particular device and report that information to
1905
  the user via the /proc/scsi/aic7xxx/n file, where n is the number of
1906
  the aic7xxx controller you want the information on. This adds a
1907
  small amount of overhead to each and every SCSI command the aic7xxx
1908
  driver handles, so if you aren't really interested in this
1909
  information, it is best to leave it disabled. This will only work if
1910
  you also say Y to "/proc filesystem support", below.
1911
 
1912
  If unsure, say N.
1913
 
1914
Delay in seconds after SCSI bus reset
1915
CONFIG_AIC7XXX_RESET_DELAY
1916
  This sets how long the driver will wait after resetting the SCSI bus
1917
  before attempting to communicate with the devices on the SCSI bus
1918
  again. This delay will be used during the reset phase at bootup time
1919
  as well as after any reset that might occur during normal operation.
1920
  Reasonable numbers range anywhere from 5 to 15 seconds depending on
1921
  your devices. DAT tape drives are notorious for needing more time
1922
  after a bus reset to be ready for the next command, but most hard
1923
  drives and CD-ROM devices are ready in only a few seconds. This
1924
  option has a maximum upper limit of 20 seconds to avoid bad
1925
  interactions between the aic7xxx driver and the rest of the linux
1926
  kernel. The default value has been reduced to 5 seconds. If this
1927
  doesn't work with your hardware, try increasing this value.
1928
 
1929
BusLogic SCSI support
1930
CONFIG_SCSI_BUSLOGIC
1931
  This is support for BusLogic MultiMaster and FlashPoint SCSI Host
1932
  Adapters.  Consult the SCSI-HOWTO, available via anonymous FTP from
1933
  sunsite.unc.edu:/pub/Linux/docs/HOWTO, and the files README.BusLogic
1934
  and README.FlashPoint in drivers/scsi for more information.  If this
1935
  driver does not work correctly without modification, please contact
1936
  the author, Leonard N. Zubkoff, by email to lnz@dandelion.com.
1937
  You can also build this driver as a module ( = code which can be
1938
  inserted in and removed from the running kernel whenever you want),
1939
  but only a single instance may be loaded.  If you want to compile it
1940
  as a module, say M here and read Documentation/modules.txt.
1941
 
1942
Omit BusLogic SCSI FlashPoint support
1943
CONFIG_SCSI_OMIT_FLASHPOINT
1944
  This option allows you to omit the FlashPoint support from the
1945
  BusLogic SCSI driver.  The FlashPoint SCCB Manager code is
1946
  substantial, so users of MultiMaster Host Adapters may wish to
1947
  omit it.
1948
 
1949
DTC3180/3280 SCSI support
1950
CONFIG_SCSI_DTC3280
1951
  This is support for DTC 3180/3280 SCSI Host Adapters.  Please read
1952
  the SCSI-HOWTO, available via FTP (user: anonymous) at
1953
  sunsite.unc.edu:/pub/Linux/docs/HOWTO and the file
1954
  drivers/scsi/README.dtc3x80.  This driver is also available as a
1955
  module ( = code which can be inserted in and removed from the
1956
  running kernel whenever you want). If you want to compile it as a
1957
  module, say M here and read Documentation/modules.txt.
1958
 
1959
EATA-DMA (DPT, NEC, AT&T, SNI, AST, Olivetti, Alphatronix) support
1960
CONFIG_SCSI_EATA_DMA
1961
  This is support for the EATA-DMA protocol compliant SCSI Host
1962
  Adapters like the SmartCache III/IV, SmartRAID controller families
1963
  and the DPT PM2011B and PM2012B controllers.  Please read the
1964
  SCSI-HOWTO, available via FTP (user: anonymous) at
1965
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  This driver is also
1966
  available as a module ( = code which can be inserted in and removed
1967
  from the running kernel whenever you want). If you want to compile
1968
  it as a module, say M here and read Documentation/modules.txt.
1969
 
1970
EATA-PIO (old DPT PM2001, PM2012A) support
1971
CONFIG_SCSI_EATA_PIO
1972
  This driver supports all EATA-PIO protocol compliant SCSI Host
1973
  Adapters like the DPT PM2001 and the PM2012A. EATA-DMA compliant
1974
  host adapters could also use this driver but are discouraged from
1975
  doing so, since this driver only supports hard disks and lacks
1976
  numerous features.  You might want to have a look at the SCSI-HOWTO,
1977
  available via FTP (user: anonymous) at
1978
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you want to compile this
1979
  as a module ( = code which can be inserted in and removed from the
1980
  running kernel whenever you want), say M here and read
1981
  Documentation/modules.txt.
1982
 
1983
UltraStor 14F/34F support
1984
CONFIG_SCSI_U14_34F
1985
  This is support for the UltraStor 14F and 34F SCSI-2 host adapters.
1986
  The source at drivers/scsi/u14-34f.c contains some information about
1987
  this hardware.  If the driver doesn't work out of the box, you may
1988
  have to change some settings in drivers/scsi/u14-34f.c.
1989
  Read the SCSI-HOWTO, available via FTP (user: anonymous) at
1990
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  Note that there is also
1991
  another driver for the same hardware: "UltraStor SCSI support",
1992
  below.  You should enable both only if you want 24F support as well.
1993
  This driver is also available as a module ( = code which can be
1994
  inserted in and removed from the running kernel whenever you want).
1995
  If you want to compile it as a module, say M here and read
1996
  Documentation/modules.txt.
1997
 
1998
Future Domain 16xx SCSI support
1999
CONFIG_SCSI_FUTURE_DOMAIN
2000
  This is support for Future Domain's 16-bit SCSI host adapters
2001
  (TMC-1660/1680, TMC-1650/1670, TMC-3260, TMC-1610M/MER/MEX)
2002
  and other adapters based on the Future Domain chipsets (Quantum
2003
  ISA-200S, ISA-250MG; Adaptec AHA-2920; and at least one IBM board).
2004
  It is explained in section 3.7 of the SCSI-HOWTO, available via FTP
2005
  (user: anonymous) at sunsite.unc.edu:/pub/Linux/docs/HOWTO.
2006
  This driver is also available as a module ( = code which can be
2007
  inserted in and removed from the running kernel whenever you want).
2008
  If you want to compile it as a module, say M here and read
2009
  Documentation/modules.txt.
2010
 
2011
Generic NCR5380/53c400 SCSI support
2012
CONFIG_SCSI_GENERIC_NCR5380
2013
  This is the generic NCR family of SCSI controllers, not to be
2014
  confused with the NCR 53c7 or 8xx controllers. It is explained in
2015
  section 3.8 of the SCSI-HOWTO, available via FTP (user: anonymous)
2016
  at sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If it doesn't work out of
2017
  the box, you may have to change some settings in
2018
  drivers/scsi/g_NCR5380.h. This driver is also available as a module
2019
  ( = code which can be inserted in and removed from the running
2020
  kernel whenever you want). If you want to compile it as a module,
2021
  say M here and read Documentation/modules.txt.
2022
 
2023
Enable NCR53c400 extensions
2024
CONFIG_SCSI_GENERIC_NCR53C400
2025
  This enables certain optimizations for the NCR53c400 SCSI cards. You
2026
  might as well try it out. Note that this driver will only probe for
2027
  the Trantor T130B in its default configuration; you might have to
2028
  pass a command line option to the kernel at boot time if it doesn't
2029
  detect your card. See the file drivers/scsi/README.g_NCR5380 for
2030
  details. If you want to compile it as a module, say M here and read
2031
  Documentation/modules.txt.
2032
 
2033
NCR5380/53c400 mapping method (use Port for T130B)
2034
CONFIG_SCSI_G_NCR5380_PORT
2035
  The NCR5380 and NCR53c400 SCSI controllers come in two varieties:
2036
  port or memory mapped. You should know what you have. The most
2037
  common card, Trantor T130B, uses port mapped mode.
2038
 
2039
NCR53c7,8xx SCSI support
2040
CONFIG_SCSI_NCR53C7xx
2041
  This is the 53c7 and 8xx NCR family of SCSI controllers, not to be
2042
  confused with the NCR 5380 controllers. It is explained in section
2043
  3.8 of the SCSI-HOWTO, available via FTP (user: anonymous) at
2044
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. If it doesn't work out of the
2045
  box, you may have to change some settings in
2046
  drivers/scsi/53c7,8xx.h. This driver is also available as a module
2047
  ( = code which can be inserted in and removed from the running
2048
  kernel whenever you want). If you want to compile it as a module,
2049
  say M here and read Documentation/modules.txt.
2050
 
2051
Always negotiate synchronous transfers
2052
CONFIG_SCSI_NCR53C7xx_sync
2053
  In general, this is good; however, it is a bit dangerous since there
2054
  are some broken SCSI devices out there. Take your chances. Safe bet
2055
  is N.
2056
 
2057
Allow FAST-SCSI [10MHz]
2058
CONFIG_SCSI_NCR53C7xx_FAST
2059
  This will enable 10MHz FAST-SCSI transfers with your host adapter.
2060
  Some systems have problems with that speed, so it's safest to say N
2061
  here.
2062
 
2063
Allow DISCONNECT
2064
CONFIG_SCSI_NCR53C7xx_DISCONNECT
2065
  This enables the disconnect/reconnect feature of the NCR SCSI
2066
  controller.  When this is enabled, a slow SCSI device will not lock
2067
  the SCSI bus while processing a request, allowing simultaneous use
2068
  of e.g. a SCSI hard disk and SCSI tape or CD-ROM drive, and
2069
  providing much better performance when using slow and fast SCSI
2070
  devices at the same time. Some devices, however, do not operate
2071
  properly with this option enabled, and will cause your SCSI system
2072
  to hang, which might cause a system crash.  The safe answer
2073
  therefore is to say N.
2074
 
2075
NCR53C8XX SCSI support
2076
CONFIG_SCSI_NCR53C8XX
2077
  This is the BSD ncr driver adapted to Linux for the NCR53C8XX family
2078
  of PCI-SCSI controllers. This driver supports parity checking,
2079
  tagged command queuing and fast synchronous data transfers up to 80
2080
  MB/s with wide FAST-40 LVD devices and controllers.
2081
  The NCR53C860 and NCR53C875 support FAST-20 transfers. The NCR53C895
2082
  supports FAST-40 transfers with Ultra2 LVD devices.
2083
  If you have a SYM53C896 PCI-SCSI controller, you may want to use the new
2084
  improved driver available at ftp://ftp.tux.org/pub/roudier/896/.
2085
  Please read drivers/scsi/README.ncr53c8xx for more information.
2086
 
2087
Synchronous data transfers frequency
2088
CONFIG_SCSI_NCR53C8XX_SYNC
2089
  The SCSI Parallel Interface-2 Standard defines 4 classes of transfer
2090
  rates: FAST-5, FAST-10, FAST-20 and FAST-40. The numbers are
2091
  respectively the maximum data transfer rates in mega-transfers per
2092
  second for each class. For example, a FAST-20 Wide 16 device is able
2093
  to transfer data at 20 million 16 bit packets per second for a total
2094
  rate of 40 MB/s.
2095
  You may specify 0 if you want to only use asynchronous data
2096
  transfers. This is the safest and slowest option. Otherwise, specify
2097
  a value between 5 and 40, depending on the capability of your SCSI
2098
  controller. The higher the number, the faster the data transfer.
2099
  Note that 40 should normally be ok since the driver decreases the
2100
  value automatically according to the controller's capabilities.
2101
  Your answer to this question is ignored for controllers with NVRAM,
2102
  since the driver will get this information from the user set-up. It
2103
  also can be overridden using a boot setup option, as follows
2104
  (example): 'ncr53c8xx=sync:12' will allow the driver to negotiate
2105
  for FAST-20 synchronous data transfer (20 mega-transfers per
2106
  second).
2107
  The normal answer therefore is not to go with the default but to
2108
  select the maximum value 40 allowing the driver to use the maximum
2109
  value supported by each controller. If this causes problems with
2110
  your SCSI devices, you should come back and decrease the value.
2111
  There is no safe option other than using good cabling, right
2112
  terminations and SCSI conformant devices.
2113
 
2114
Use normal IO
2115
CONFIG_SCSI_NCR53C8XX_IOMAPPED
2116
  If you say Y here, the driver will use normal IO, as opposed to
2117
  memory mapped IO. Memory mapped IO has less latency than normal IO
2118
  and works for most Intel-based hardware. Under Linux/Alpha only
2119
  normal IO is currently supported by the driver and so, this option
2120
  has no effect on those systems.
2121
  The normal answer therefore is N; try Y only if you encounter SCSI
2122
  related problems.
2123
 
2124
Not allow targets to disconnect
2125
CONFIG_SCSI_NCR53C8XX_NO_DISCONNECT
2126
  This option is only provided for safety if you suspect some SCSI
2127
  device of yours to not support properly the target-disconnect
2128
  feature. In that case, you would say Y here. In general however, to
2129
  not allow targets to disconnect is not reasonable if there is more
2130
  than 1 device on a SCSI bus. The normal answer therefore is N.
2131
 
2132
Default tagged command queue depth
2133
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS
2134
  "Tagged command queuing" is a feature of SCSI-2 which improves
2135
  performance: the host adapter can send several SCSI commands to a
2136
  device's queue even if previous commands haven't finished yet. Some
2137
  SCSI devices don't implement this properly; if you want to disable
2138
  this feature, enter 0 or 1 here (it doesn't matter which).
2139
  The default value is 8 and should be supported by most hard disks.
2140
  This value can be overridden from the boot command line using the
2141
  'tags' option as follows (example):
2142
  'ncr53c8xx=tags:4/t2t3q16/t0u2q10' will set default queue depth to
2143
  4, set queue depth to 16 for target 2 and target 3 on controller 0
2144
  and set queue depth to 10 for target 0 / lun 2 on controller 1.
2145
  The normal answer therefore is to go with the default 8 and to use
2146
  a boot command line option for devices that need to use a different
2147
  command queue depth.
2148
  There is no safe option other than using good SCSI devices.
2149
 
2150
Maximum number of queued commands
2151
CONFIG_SCSI_NCR53C8XX_MAX_TAGS
2152
  This option allows you to specify the maximum number of commands
2153
  that can be queued to any device, when tagged command queuing is
2154
  possible. The default value is 32. Minimum is 2, maximum is 64.
2155
  Modern hard disks are able to support 64 tags and even more, but
2156
  donnot seem to be faster when more than 32 tags are being used.
2157
  So, the normal answer here is to go with the default value 32 unless
2158
  you are using very large hard disks with large cache (>= 1 MB) that
2159
  are able to take advantage of more than 32 tagged commands.
2160
  There is no safe option and the default answer is recommended.
2161
 
2162
Assume boards are SYMBIOS compatible
2163
CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT
2164
  This option allows you to enable some features depending on GPIO
2165
  wiring. These General Purpose Input/Output pins can be used for
2166
  vendor specific features or implementation of the standard SYMBIOS
2167
  features. Genuine SYMBIOS controllers use GPIO0 in output for
2168
  controller LED and GPIO3 bit as a flag indicating
2169
  singled-ended/differential interface. The Tekram DC-390U/F boards
2170
  uses a different GPIO wiring.
2171
  Your answer to this question is ignored if all your controllers have
2172
  NVRAM, since the driver is able to detect the board type from the
2173
  NVRAM format.
2174
  If all the controllers in your system are genuine SYMBIOS boards or
2175
  use BIOS and drivers from SYMBIOS, you would want to say Y here,
2176
  otherwise N. N is the safe answer.
2177
 
2178
Enable profiling statistics gathering
2179
CONFIG_SCSI_NCR53C8XX_PROFILE
2180
  This option allows you to enable profiling information gathering.
2181
  These statistics are not very accurate due to the low frequency
2182
  of the kernel clock (100 Hz on i386) and have performance impact
2183
  on systems that use very fast devices.
2184
  The normal answer therefore is N.
2185
 
2186
Always IN2000 SCSI support
2187
CONFIG_SCSI_IN2000
2188
  This is support for an ISA bus SCSI host adapter.  You'll find more
2189
  information in drivers/scsi/in2000.readme.  If it doesn't work out
2190
  of the box, you may have to change the jumpers for IRQ or address
2191
  selection.  If you want to compile this as a module ( = code which
2192
  can be inserted in and removed from the running kernel whenever you
2193
  want), say M here and read Documentation/modules.txt.
2194
 
2195
PAS16 SCSI support
2196
CONFIG_SCSI_PAS16
2197
  This is support for a SCSI host adapter.  It is explained in section
2198
  3.10 of the SCSI-HOWTO, available via FTP (user: anonymous) at
2199
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. If it doesn't work out of the
2200
  box, you may have to change some settings in drivers/scsi/pas16.h.
2201
 
2202
Qlogic FAS SCSI support
2203
CONFIG_SCSI_QLOGIC_FAS
2204
  This driver works only with the ISA, VLB, and PCMCIA versions of the
2205
  Qlogic FastSCSI! cards as well as any other card based on the FASXX
2206
  chip (including the Control Concepts SCSI/IDE/SIO/PIO/FDC cards); it
2207
  does NOT support the PCI version.  The PCI versions are supported by
2208
  the Qlogic ISP driver though.  Information about this driver is
2209
  contained in drivers/scsi/README.qlogicfas.  You should also read
2210
  the SCSI-HOWTO, available via FTP (user: anonymous) at
2211
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  This driver is also
2212
  available as a module ( = code which can be inserted in and removed
2213
  from the running kernel whenever you want).  If you want to compile
2214
  it as a module, say M here and read Documentation/modules.txt.
2215
 
2216
Qlogic ISP SCSI support (EXPERIMENTAL)
2217
CONFIG_SCSI_QLOGIC_ISP
2218
  This driver works for all QLogic PCI SCSI host adapters (IQ-PCI,
2219
  IQ-PCI-10, IQ_PCI-D) except for the PCI-basic card.  (This latter
2220
  card is supported by the "AM53/79C974 PCI SCSI" driver.)  If you
2221
  say Y here, make sure to say Y to "PCI BIOS support" as well.  More
2222
  information is contained in the file drivers/scsi/README.qlogicisp.
2223
  You should also read the SCSI-HOWTO, available via FTP (user:
2224
  anonymous) at sunsite.unc.edu:/pub/Linux/docs/HOWTO.
2225
  This driver is also available as a module ( = code which can be
2226
  inserted in and removed from the running kernel whenever you
2227
  want).  If you want to compile it as a module, say M here and read
2228
  Documentation/modules.txt.
2229
 
2230
Seagate ST-02 and Future Domain TMC-8xx SCSI support
2231
CONFIG_SCSI_SEAGATE
2232
  These are 8-bit SCSI controllers; the ST-01 is also supported by
2233
  this driver.  It is explained in section 3.9 of the SCSI-HOWTO,
2234
  available via FTP (user: anonymous) at sunsite.unc.edu:
2235
  /pub/Linux/docs/HOWTO.  If it doesn't work out of the box, you may
2236
  have to change some settings in drivers/scsi/seagate.h.
2237
  This driver is also available as a module ( = code which can be
2238
  inserted in and removed from the running kernel whenever you
2239
  want).  If you want to compile it as a module, say M here and read
2240
  Documentation/modules.txt.
2241
 
2242
Trantor T128/T128F/T228 SCSI support
2243
CONFIG_SCSI_T128
2244
  This is support for a SCSI host adapter.  It is explained in section
2245
  3.11 of the SCSI-HOWTO, available via FTP (user: anonymous) at
2246
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. If it doesn't work out of the
2247
  box, you may have to change some settings in drivers/scsi/t128.h.
2248
  Note that Trantor was recently purchased by Adaptec, and some former
2249
  Trantor products are being sold under the Adaptec name.
2250
 
2251
UltraStor SCSI support
2252
CONFIG_SCSI_ULTRASTOR
2253
  This is support for the UltraStor 14F, 24F and 34F SCSI-2 host
2254
  adapter family.  This driver is explained in section 3.12 of the
2255
  SCSI-HOWTO, available via FTP (user: anonymous) at sunsite.unc.edu:
2256
  /pub/Linux/docs/HOWTO.  If it doesn't work out of the box, you may
2257
  have to change some settings in drivers/scsi/ultrastor.h.  If you
2258
  want to compile this as a module ( = code which can be inserted in
2259
  and removed from the running kernel whenever you want), say M here
2260
  and read Documentation/modules.txt.
2261
  Note that there is also another driver for UltraStor hardware:
2262
  "UltraStor 14F/34F support", above.
2263
 
2264
7000FASST SCSI support
2265
CONFIG_SCSI_7000FASST
2266
  This driver supports the Western Digital 7000 SCSI host adapter.
2267
  Some information is in the source: drivers/scsi/wd7000.c.  This
2268
  driver is also available as a module ( = code which can be inserted
2269
  in and removed from the running kernel whenever you want).  If you
2270
  want to compile it as a module, say M here and read
2271
  Documentation/modules.txt.
2272
 
2273
EATA ISA/EISA/PCI (DPT and generic EATA/DMA-compliant boards) support
2274
CONFIG_SCSI_EATA
2275
  This driver supports all the EATA/DMA-compliant SCSI host adapters
2276
  and does not need any BIOS32 service.
2277
  DPT ISA and all EISA i/o addresses are probed looking for the "EATA"
2278
  signature.  If "PCI bios support" is enabled, the addresses of all
2279
  the PCI SCSI controllers reported by BIOS32 are probed as well.
2280
  Note that there is also another driver for the same hardware:
2281
  "EATA-DMA support".  You should enable only one of them.
2282
  You want to read the start of drivers/scsi/eata.c and the
2283
  SCSI-HOWTO, available via FTP (user: anonymous) at
2284
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you want to compile this
2285
  as a module ( = code which can be inserted in and removed from the
2286
  running kernel whenever you want), say M here and read
2287
  Documentation/modules.txt.
2288
 
2289
NCR53c406a SCSI support
2290
CONFIG_SCSI_NCR53C406A
2291
  This is support for the NCR53c406a SCSI host adapter.  For user
2292
  configurable parameters, check out drivers/scsi/NCR53c406.c in the
2293
  kernel source.  Also read the SCSI-HOWTO, available via FTP (user:
2294
  anonymous) at sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you want to
2295
  compile this driver as a module ( = code which can be inserted in
2296
  and removed from the running kernel whenever you want), say M here
2297
  and read Documentation/modules.txt.
2298
 
2299
Tekram DC390(T) and Am53/79C974 (PCscsi) SCSI support
2300
CONFIG_SCSI_DC390T
2301
  This driver supports  PCI SCSI host adapters  based on the Am53C974A
2302
  chip,  e.g.  Tekram DC390(T),  DawiControl 2974  and  some   onboard
2303
  PCscsi/PCnet (Am53/79C974) solutions.
2304
  Documentation can be found in linux/drivers/scsi/README.tmscsim.
2305
  Note that this driver  does NOT support Tekram DC390W/U/F, which are
2306
  based on NCR/Symbios chips. Use the NCR53C8XX driver for those.
2307
  Also note, that there is another generic Am53C974 driver.
2308
  If you want to compile this driver as a module ( = code which can be
2309
  inserted in and removed from the running kernel  whenever you want),
2310
  say M here  and read Documentation/modules.txt.  The module  will be
2311
  called tmscsim.o.
2312
 
2313
Skip support for other Am53/79C974 based SCSI adapters
2314
CONFIG_SCSI_DC390T_NOGENSUPP
2315
  Normally, the DC390(T) SCSI driver relies on the DC390 EEPROM to get
2316
  initial values  for its settings,  such as speed,  termination, etc.
2317
  If  it can't find  this EEPROM, it  will use  defaults  or  the user
2318
  supplied boot/module parameters. For details on driver configuration
2319
  see linux/drivers/scsi/README.tmscsim.
2320
  With this option set, if no EEPROM is found, the driver gives up and
2321
  thus only supports  Tekram DC390(T) adapters.  This can be useful if
2322
  you have a DC390(T)  and another Am53C974 based adapter,  which, for
2323
  some reason, you want to drive with the other AM53C974 driver.
2324
  If unsure, say N.
2325
 
2326
Symbios Logic sym53c416 support
2327
CONFIG_SCSI_SYM53C416
2328
  This is support for the sym53c416 SCSI host adapter. This is the
2329
  SCSI adapter that comes with some hp scanners. This driver requires that
2330
  the sym53c416 is configured first using some sort of pnp configuration
2331
  program (e.g. isapnp). After doing so it should be loaded as a module
2332
  using insmod. The parameters of the configured card(s) should be passed
2333
  to the driver. The format is:
2334
 
2335
    insmod sym53c416 sym53c416=, [sym53c416_1=,]
2336
 
2337
  There is support for up to four adapters. If you want to compile this
2338
  driver as a module ( = code which can be inserted in and removed from
2339
  the running kernel whenever you want), say M here and read
2340
  Documentation/modules.txt.
2341
 
2342
AM53/79C974 PCI SCSI support
2343
CONFIG_SCSI_AM53C974
2344
  This is support for the AM53/79C974 SCSI host adapters. Please read
2345
  drivers/scsi/README.AM53C974 for details. Also, the SCSI-HOWTO,
2346
  available via FTP (user: anonymous) at
2347
  ftp://sunsite.unc.edu/pub/Linux/docs/HOWTO, is for you.
2348
  Note that there is another driver for AM53C974 based adapters: The
2349
  Tekram DC390(T) driver.
2350
  If you want to compile this driver as a module ( = code which can be
2351
  inserted in and removed from the running kernel whenever you want),
2352
 
2353
GDT SCSI Disk Array Controller support
2354
CONFIG_SCSI_GDTH
2355
  This is a driver for all SCSI Disk Array Controllers (EISA/ISA/PCI)
2356
  manufactured by ICP vortex. It is documented in the kernel source in
2357
  drivers/scsi/gdth.c and drivers/scsi/gdth.h. This driver is also
2358
  available as a module ( = code which can be inserted in and removed
2359
  from the running kernel whenever you want). If you want to compile
2360
  it as a module, say M here and read Documentation/modules.txt.
2361
 
2362
IOMEGA Parallel Port ZIP drive SCSI support
2363
CONFIG_SCSI_PPA
2364
  This driver supports the parallel port version of IOMEGA's ZIP drive
2365
  (a 100Mb removable media device).  For more information about this
2366
  driver and how to use it you should read the file
2367
  drivers/scsi/README.ppa.  You should also read the SCSI-HOWTO, which
2368
  is available via anonymous FTP from sunsite.unc.edu in the directory
2369
  /pub/Linux/docs/HOWTO.  This driver is also available as a module
2370
  which can be inserted in and removed from the running kernel
2371
  whenever you want. If you want to use any two of a parallel port ZIP
2372
  drive, a parallel printer or PLIP on the same parallel port, you
2373
  should compile the drivers as modules and only insert them as
2374
  needed. To compile this driver as a module, say M here and read
2375
  Documentation/modules.txt. Note that you can say N here if you have
2376
  the SCSI version of the ZIP drive: it will be supported
2377
  automatically if you enabled the generic "SCSI disk support", above.
2378
 
2379
IOMEGA ZIP drive -- Buggy EPP chipset support
2380
CONFIG_SCSI_PPA_HAVE_PEDANTIC
2381
  Contacts with the Iomega driver development team indicate there are
2382
  a few reputably bad EPP implementations in existance. The following
2383
  mainboard chipsets will probably require the PEDANTIC option to
2384
  reliably transfer data:
2385
       Winbond xxx837
2386
       National Semiconductor PC87306 (early revisions)
2387
 
2388
Initio INI-A100U2W SCSI support
2389
CONFIG_SCSI_INIA100
2390
  This is support for the Initio INI-A100U2W SCSI host adapter.
2391
  Please read the SCSI-HOWTO, available via FTP (user anonymous) at
2392
  ftp://metalab.unc.edu/pub/Linux/docs/HOWTO.
2393
 
2394
  If you want to compile this as a module ( = code which can be
2395
  inserted in and removed from the running kernel whenever you want),
2396
  say M here and read Documenation/modules.txt. The module will be
2397
  called a100u2w.o
2398
 
2399
Network device support?
2400
CONFIG_NETDEVICES
2401
  You can say N here in case you don't intend to connect to any other
2402
  computer at all or all your connections will be either via UUCP
2403
  (UUCP is a protocol to forward mail and news between unix hosts over
2404
  telephone lines; read the UUCP-HOWTO, available via FTP (user:
2405
  anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO) or dialing up a
2406
  shell account or a BBS, even using term (term is a program which
2407
  gives you almost full Internet connectivity if you have a regular
2408
  dial up shell account on some Internet connected Unix computer. Read
2409
  the Term-HOWTO).  You'll have to say Y if your computer contains a
2410
  network card that you want to use under Linux (make sure you know
2411
  its name because you will be asked for it and read the
2412
  Ethernet-HOWTO; also, if you plan to use more than one network card
2413
  under Linux, read the Multiple-Ethernet-mini-HOWTO, available from
2414
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini) or if you want to use
2415
  SLIP (Serial Line Internet Protocol is the protocol used to send
2416
  Internet traffic over telephone lines or nullmodem cables) or CSLIP
2417
  (compressed SLIP) or PPP (better and newer variant of SLIP) or PLIP
2418
  (Parallel Line Internet Protocol is mainly used to create a mini
2419
  network by connecting the parallel ports of two local machines) or
2420
  AX.25/KISS (protocol for sending internet traffic over radio links).
2421
  Make sure to read the NET-2-HOWTO.  Eventually, you will have to
2422
  read Olaf Kirch's excellent book "Network Administrator's Guide", to
2423
  be found in sunsite.unc.edu:/pub/Linux/docs/LDP.  If unsure, say Y.
2424
 
2425
Ethernet (10 or 100Mbit)
2426
CONFIG_NET_ETHERNET
2427
  Ethernet is the most common protocol used on Local Area Networks
2428
  (LANs) in universities or companies. 10-base-2 and 10-base-T and
2429
  100-base- are common types of Ethernet. If your Linux
2430
  machine will be connected to an Ethernet and you have an Ethernet
2431
  network card installed in your computer, say Y here and read the
2432
  Ethernet-HOWTO, available via FTP (user: anonymous) from
2433
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  Note that the answer to this
2434
  question won't directly affect the kernel: saying N will just cause
2435
  this configure script to skip all the questions about Ethernet
2436
  network cards. If unsure, say N.
2437
 
2438
Dummy net driver support
2439
CONFIG_DUMMY
2440
  This is essentially a bit-bucket device (i.e. traffic you send to
2441
  this device is consigned into oblivion) with a configurable IP
2442
  address.  It is most commonly used in order to make your currently
2443
  inactive SLIP address seem like a real address for local programs.
2444
  If you use SLIP or PPP, you might want to enable it.  Read about it
2445
  in the Network Administrator's Guide, available via FTP (user:
2446
  anonymous) from sunsite.unc.edu:/pub/Linux/docs/LDP.  Since this
2447
  thing comes often handy, the default is Y.  It won't enlarge your
2448
  kernel either.  What a deal.  If you want to compile this as a
2449
  module ( = code which can be inserted in and removed from the
2450
  running kernel whenever you want), say M here and read
2451
  Documentation/modules.txt. If you want to use more than one dummy
2452
  device at a time, you need to compile it as a module. Instead of
2453
  'dummy', it will they will then be called 'dummy0', 'dummy1' etc.
2454
 
2455
SLIP (serial line) support
2456
CONFIG_SLIP
2457
  Say Y if you intend to use SLIP or CSLIP (compressed SLIP) to
2458
  connect to your Internet service provider or to connect to some
2459
  other local Unix box or if you want to configure your Linux box as
2460
  a Slip/CSlip server for other people to dial in.  SLIP (Serial Line
2461
  Internet Protocol) is the protocol used to send Internet traffic
2462
  over telephone lines or serial cables (also known as nullmodems).
2463
  Normally, your access provider has to support SLIP in order for you
2464
  to be able to use it, but there is now a SLIP emulator called SLiRP
2465
  around (available via FTP (user: anonymous) from sunsite.unc.edu:
2466
  /pub/Linux/system/Network/serial/) which allows you to use SLIP over
2467
  a regular dial up shell connection.  If you plan to use SLiRP, make
2468
  sure to say Y to CSLIP, below.  The NET-2-HOWTO, available via FTP
2469
  (user: anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO, explains
2470
  how to configure SLIP.  Note that you don't need this option if you
2471
  just want to run term (term is a program which gives you almost full
2472
  Internet connectivity if you have a regular dial up shell account on
2473
  some Internet connected Unix computer.  Read the Term-HOWTO).  SLIP
2474
  support will enlarge your kernel by about 4kB.  If unsure, say N.
2475
  If you want to compile this as a module ( = code which can be
2476
  inserted in and removed from the running kernel whenever you want),
2477
  say M here and read Documentation/modules.txt as well as
2478
  Documentation/networking/net-modules.txt.
2479
 
2480
CSLIP compressed headers
2481
CONFIG_SLIP_COMPRESSED
2482
  This protocol is faster than SLIP because it uses compression on the
2483
  TCP/IP headers (not on the data itself), but it has to be supported
2484
  on both ends.  Ask your access provider if you are not sure and
2485
  say Y, just in case.  You will still be able to use plain SLIP.  If
2486
  you plan to use SLiRP, the SLIP emulator (available via FTP (user:
2487
  anonymous) from sunsite.unc.edu:/pub/Linux/system/Network/serial/)
2488
  which allows you to use SLIP over a regular dial up shell
2489
  connection, you definitely want to say Y here.
2490
  The NET-2-HOWTO, available via FTP (user: anonymous) in
2491
  sunsite.unc.edu:/pub/Linux/docs/HOWTO, explains how to configure
2492
  CSLIP.  This won't enlarge your kernel.
2493
 
2494
Keepalive and linefill
2495
CONFIG_SLIP_SMART
2496
  Adds additional capabilities to the SLIP driver to support the
2497
  RELCOM line fill and keepalive monitoring.  Ideal on poor quality
2498
  analogue lines.
2499
 
2500
Six bit SLIP encapsulation
2501
CONFIG_SLIP_MODE_SLIP6
2502
  Just occasionally you may need to run IP over hostile serial
2503
  networks that don't pass all control characters or are only seven
2504
  bit.  Saying Y here adds an extra mode you can use with SLIP:
2505
  "slip6".  In this mode, SLIP will only send normal ascii symbols
2506
  over the serial device.  Naturally, this has to be supported at the
2507
  other end of the link as well.  It's good enough, for example, to
2508
  run IP over the async ports of a Camtec JNT Pad.  If unsure, say N.
2509
 
2510
Radio network interfaces
2511
CONFIG_NET_RADIO
2512
  Radio based interfaces for Linux.  This includes amateur radio
2513
  (AX.25), support for wireless Ethernet and other systems.  Note that
2514
  the answer to this question won't directly affect the kernel:
2515
  saying N will just cause this configure script to skip all the
2516
  questions about radio interfaces. Some user-level drivers for scarab
2517
  devices which don't require special kernel support are available via
2518
  FTP (user: anonymous) from shadow.cabi.net.  If unsure, say N.
2519
 
2520
PPP (point-to-point) support
2521
CONFIG_PPP
2522
  PPP (Point to Point Protocol) is a newer and better SLIP.  It serves
2523
  the same purpose: sending Internet traffic over telephone (and other
2524
  serial) lines.  Ask your access provider if they support it, because
2525
  otherwise you can't use it (not quite true any more: the free
2526
  program SLiRP can emulate a PPP line if you just have a regular dial
2527
  up shell account on some UNIX computer; get it via FTP (user:
2528
  anonymous) from sunsite.unc.edu:/pub/Linux/system/Network/serial/).
2529
  To use PPP, you need an additional program called pppd as described
2530
  in Documentation/networking/ppp.txt and in the PPP-HOWTO, available
2531
  from sunsite.unc.edu:/pub/Linux/docs/HOWTO. Note that you don't need
2532
  this option if you just want to run term (term is a program which
2533
  gives you almost full Internet connectivity if you have a regular
2534
  dial up shell account on some Internet connected UNIX computer. Read
2535
  the Term-HOWTO).  The PPP option enlarges your kernel by about 16kB.
2536
  This driver is also available as a module ( = code which can be
2537
  inserted in and removed from the running kernel whenever you want).
2538
  If you said Y to "Version information on all symbols" above, then
2539
  you cannot compile the PPP driver into the kernel; you can only
2540
  compile it as a module.  If you want to compile it as a module,
2541
  say M here and read Documentation/modules.txt as well as
2542
  Documentation/networking/net-modules.txt.  Note that, no matter what
2543
  you do, the BSD compression code (used to compress the IP packets
2544
  sent over the serial line; has to be supported at the other end as
2545
  well) can only be compiled as a module; it is called bsd_comp.o and
2546
  will show up in the directory modules once you have said "make
2547
  modules".  If unsure, say N.
2548
 
2549
16 channels instead of 4
2550
CONFIG_PPP_LOTS
2551
  Saying Y here will allow you to have up to 16 PPP connections
2552
  running in parallel.  This is mainly useful if you intend your
2553
  Linux box to act as a dial-in PPP server.  Most people can say N.
2554
 
2555
STRIP (Starmode Radio IP) support
2556
CONFIG_STRIP
2557
  Say Y if you have a Metricom radio and intend to use Starmode Radio
2558
  IP.  STRIP is a radio protocol developed for the MosquitoNet project
2559
  (http://mosquitonet.stanford.edu/) to send Internet traffic using
2560
  Metricom radios.  Metricom radios are small, battery powered,
2561
  100kbit/sec packet radio transceivers, about the size and weight of
2562
  a cellular telephone.  (You may also have heard them called
2563
  "Metricom modems" but we avoid the term "modem" because it misleads
2564
  many people into thinking that you can plug a Metricom modem into a
2565
  phone line and use it as a modem.)  You can use STRIP on any Linux
2566
  machine with a serial port, although it is obviously most useful for
2567
  people with laptop computers.  If you think you might get a Metricom
2568
  radio in the future, there is no harm in saying yes to STRIP now,
2569
  except that it makes the kernel a bit bigger.
2570
 
2571
WIC (Radio IP bridge)
2572
CONFIG_WIC
2573
  Support for the WIC parallel port radio bridge. You'll probably want
2574
  to say N.  If you want to compile this driver as a module though
2575
  (= code which can be inserted in and removed from the running kernel
2576
  whenever you want), say M here and read Documentation/modules.txt.
2577
 
2578
Z8530 SCC kiss emulation driver for AX.25
2579
CONFIG_SCC
2580
  These cards are used to connect your Linux box to an amateur radio
2581
  in order to communicate with other computers.  If you want to use
2582
  this, read Documentation/networking/z8530drv.txt and the HAM-HOWTO,
2583
  available via FTP (user: anonymous) at
2584
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you want to compile this
2585
  as a module ( = code which can be inserted in and removed from the
2586
  running kernel whenever you want), say M here and read
2587
  Documentation/modules.txt.
2588
 
2589
BAYCOM ser12 and par96 driver for AX.25
2590
CONFIG_BAYCOM
2591
  This is an experimental driver for Baycom style simple amateur radio
2592
  modems that connect to either a serial interface or a parallel
2593
  interface. The driver supports the ser12 and par96 designs. To
2594
  configure the driver, use the sethdlc utility available in the
2595
  standard ax25 utilities package. For information on the modems, see
2596
  http://www.baycom.de and drivers/net/README.baycom.
2597
  If you want to compile this as a module ( = code which can be
2598
  inserted in and removed from the running kernel whenever you want),
2599
  say M here and read Documentation/modules.txt. This is recommended.
2600
 
2601
Sound card modem driver for AX.25
2602
CONFIG_SOUNDMODEM
2603
  This experimental driver allows a standard SoundBlaster or
2604
  WindowsSoundSystem compatible sound card to be used as a packet
2605
  radio modem (NOT as a telephone modem!), to send digital traffic
2606
  over amateur radio.
2607
  To configure the driver, use the sethdlc, smdiag and smmixer
2608
  utilities available in the standard ax25 utilities package. For
2609
  information on how to key the transmitter, see
2610
  http://www.ife.ee.ethz.ch/~sailer/pcf/ptt_circ/ptt.html (to browse
2611
  the WWW, you need to have access to a machine on the Internet that
2612
  has a program like lynx or netscape) and
2613
  Documentation/networking/soundmodem.txt.
2614
  If you want to compile this driver as a module ( = code which can be
2615
  inserted in and removed from the running kernel whenever you want),
2616
  say M here and read Documentation/modules.txt. This is recommended.
2617
  The module will be called soundmodem.o.
2618
 
2619
Sound card modem support for SoundBlaster and compatible cards
2620
CONFIG_SOUNDMODEM_SBC
2621
  This option enables the soundmodem driver to use SoundBlaster and
2622
  compatible cards. If you have a dual mode card (i.e. a WSS cards
2623
  with a SoundBlaster emulation) you should say N here and Y to
2624
  "Sound card modem support for WSS and Crystal cards", below, because
2625
  this usually results in better performance. This option also
2626
  supports SB16/32/64 in full duplex mode.
2627
 
2628
Sound card modem support for WSS and Crystal cards
2629
CONFIG_SOUNDMODEM_WSS
2630
  This option enables the soundmodem driver to use WindowsSoundSystem
2631
  compatible cards. These cards feature a codec chip from either
2632
  Analog Devices (such as AD1848, AD1845, AD1812) or Crystal
2633
  Semiconductors (such as CS4248, CS423x). This option also supports
2634
  the WSS full duplex operation which currently works with Crystal
2635
  CS423x chips. If you don't need full duplex operation, do not enable
2636
  it to save performance.
2637
 
2638
Sound card modem support for 1200 baud AFSK modulation
2639
CONFIG_SOUNDMODEM_AFSK1200
2640
  This option enables the soundmodem driver 1200 baud AFSK modem,
2641
  compatible to popular modems using TCM3105 or AM7911.
2642
  The demodulator requires about 12% of the CPU power of a Pentium 75
2643
  CPU per channel.
2644
 
2645
Sound card modem support for 2400 baud AFSK modulation (7.3728MHz crystal)
2646
CONFIG_SOUNDMODEM_AFSK2400_7
2647
  This option enables the soundmodem driver 2400 baud AFSK modem,
2648
  compatible to TCM3105 modems (over-)clocked with a 7.3728MHz
2649
  crystal. Note that the availability of this driver does _not_ imply
2650
  that I recommend building such links. It is only here since users
2651
  especially in eastern Europe have asked me to do so. In fact this
2652
  modulation scheme has many disadvantages, mainly its incompatibility
2653
  with many transceiver designs and the fact that the TCM3105 (if
2654
  used) is operated widely outside its specifications.
2655
 
2656
Sound card modem support for 2400 baud AFSK modulation (8MHz crystal)
2657
CONFIG_SOUNDMODEM_AFSK2400_8
2658
  This option enables the soundmodem driver 2400 baud AFSK modem,
2659
  compatible to TCM3105 modems (over-)clocked with an 8MHz crystal.
2660
  Note that the availability of this driver does _not_ imply that
2661
  I recommend building such links. It is only here since users
2662
  especially in eastern Europe have asked me to do so. In fact this
2663
  modulation scheme has many disadvantages, mainly its incompatibility
2664
  with many transceiver designs and the fact that the TCM3105 (if
2665
  used) is operated widely outside its specifications.
2666
 
2667
Sound card modem support for 2666 baud AFSK modulation
2668
CONFIG_SOUNDMODEM_AFSK2666
2669
  This option enables the soundmodem driver 2666 baud AFSK modem.
2670
  This modem is experimental, and not compatible to anything
2671
  else I know of.
2672
 
2673
Sound card modem support for 4800 baud 8PSK modulation
2674
CONFIG_SOUNDMODEM_PSK4800
2675
  This option enables the soundmodem driver 4800 baud 8PSK modem.
2676
  This modem is experimental, and not compatible to anything
2677
  else I know of.
2678
 
2679
Sound card modem support for 4800 baud HAPN-1 modulation
2680
CONFIG_SOUNDMODEM_HAPN4800
2681
  This option enables the soundmodem driver 4800 baud HAPN-1
2682
  compatible modem. This modulation seems to be widely used 'down
2683
  under' and in the Netherlands. Here, nobody uses it, so I could not
2684
  test if it works.  It is compatible to itself, however :-)
2685
 
2686
Sound card modem support for 9600 baud FSK G3RUH modulation
2687
CONFIG_SOUNDMODEM_FSK9600
2688
  This option enables the soundmodem driver 9600 baud FSK modem,
2689
  compatible to the G3RUH standard. The demodulator requires about 4%
2690
  of the CPU power of a Pentium 75 CPU per channel. You can say Y to
2691
  both 1200 baud AFSK and 9600 baud FSK if you want (but obviously you
2692
  can only use one protocol at a time, depending on what the other end
2693
  can understand).
2694
 
2695
PLIP (parallel port) support
2696
CONFIG_PLIP
2697
  PLIP (Parallel Line Internet Protocol) is used to create a mini
2698
  network consisting of two (or, rarely, more) local machines. The
2699
  parallel ports (the connectors at the computers with 25 holes) are
2700
  connected using "null printer" or "Turbo Laplink" cables which can
2701
  transmit 4 bits at a time or using special PLIP cables, to be used
2702
  on bidirectional parallel ports only, which can transmit 8 bits at a
2703
  time (you can find the wiring of these cables in
2704
  drivers/net/README?.plip). The cables can be up to 15m long. This
2705
  works also if one of the machines runs DOS/Windows and has some PLIP
2706
  software installed, e.g. the Crynwr PLIP packet driver
2707
  (http://sunsite.cnam.fr/packages/Telnet/PC/msdos/misc/pktdrvr.txt)
2708
  and winsock or NCSA's telnet.  If you want to use this, say Y and
2709
  read the PLIP mini-HOWTO, available via FTP (user: anonymous) in
2710
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini as well as the
2711
  NET-2-HOWTO in sunsite.unc.edu:/pub/Linux/docs/HOWTO. Note that the
2712
  PLIP protocol was changed and this PLIP driver won't work together
2713
  with the PLIP support in Linux versions 1.0.x.  This option enlarges
2714
  your kernel by about 8kB.
2715
  If you want to compile this as a module ( = code which can be
2716
  inserted in and removed from the running kernel whenever you want),
2717
  say M here and read Documentation/modules.txt as well as
2718
  Documentation/networking/net-modules.txt.
2719
  If you want to use both a parallel printer and PLIP, there are two
2720
  cases:
2721
  1) If the printer and the PLIP cable are to use the same parallel
2722
  port (presumably because you have just one), it is best to compile
2723
  both drivers as modules and load and unload them as needed.
2724
  2) To use different parallel ports for the printer and the PLIP
2725
  cable, you can say Y to the printer driver, specify the base address
2726
  of the parallel port(s) to use for the printer(s) with the "lp"
2727
  kernel command line option. (See the documentation of your boot
2728
  loader (lilo or loadlin) about how to pass options to the kernel at
2729
  boot time. The lilo procedure is also explained in the SCSI-HOWTO,
2730
  available via FTP (user: anonymous) in sunsite.unc.edu:
2731
  /pub/Linux/docs/HOWTO.) The standard base addresses as well as the
2732
  syntax of the "lp" command line option can be found in
2733
  drivers/char/lp.c. You can then say Y to this PLIP driver or,
2734
  preferably, M in which case Documentation/networking/net-modules.txt
2735
  tells you how to specify the port and IRQ to be used by PLIP at
2736
  module load time.
2737
  It's safe to say N here.
2738
 
2739
EQL (serial line load balancing) support
2740
CONFIG_EQUALIZER
2741
  If you have two serial connections to some other computer (this
2742
  usually requires two modems and two telephone lines) and you use
2743
  SLIP ( = the protocol for sending internet traffic over telephone
2744
  lines) or PPP ( = a better SLIP) on them, you can make them behave
2745
  like one double speed connection using this driver. Naturally, this
2746
  has to be supported at the other end as well, either with a similar
2747
  EQL Linux driver or with a Livingston Portmaster 2e. Say Y if you
2748
  want this and read drivers/net/README.eql. This driver is also
2749
  available as a module ( = code which can be inserted in and removed
2750
  from the running kernel whenever you want). If you want to compile
2751
  it as a module, say M here and read Documentation/modules.txt.
2752
 
2753
Frame Relay (DLCI) support
2754
CONFIG_DLCI
2755
  This is support for the frame relay protocol; frame relay is a fast
2756
  low-cost way to connect to a remote Internet access provider or to
2757
  form a private wide area network. The one physical line from your
2758
  box to the local "switch" (i.e. the entry point to the frame relay
2759
  network, usually at the phone company) can carry several logical
2760
  point-to-point connections to other computers connected to the frame
2761
  relay network. For a general explanation of the protocol, check out
2762
  http://frame-relay.indiana.edu/4000/4000index.html on the WWW. (To
2763
  browse the WWW, you need to have access to a machine on the Internet
2764
  that has one of the programs lynx, netscape or Mosaic.) To use frame
2765
  relay, you need supporting hardware (FRAD) and certain programs from
2766
  the net-tools package as explained in
2767
  Documentation/networking/framerelay.txt. This driver is also
2768
  available as a module ( = code which can be inserted in and removed
2769
  from the running kernel whenever you want). If you want to compile
2770
  it as a module, say M here and read Documentation/modules.txt.
2771
 
2772
Max open DLCI
2773
CONFIG_DLCI_COUNT
2774
  This is the maximal number of logical point-to-point frame relay
2775
  connections (the identifiers of which are called DCLIs) that
2776
  the driver can handle. The default is probably fine.
2777
 
2778
Max DLCI per device
2779
CONFIG_DLCI_MAX
2780
  You can specify here how many logical point-to-point frame relay
2781
  connections (the identifiers of which are called DCLIs) should be
2782
  handled by each of your hardware frame relay access devices. Go with
2783
  the default.
2784
 
2785
Sangoma S502A FRAD support
2786
CONFIG_SDLA
2787
  Say Y here if you need a driver for the Sangoma S502A, S502E, and
2788
  S508 Frame Relay Access Devices.  These are multi-protocol cards,
2789
  but only frame relay is supported by the driver at this time.
2790
  Please read Documentation/framerelay.txt.  This driver is also
2791
  available as a module ( = code which can be inserted in and removed
2792
  from the running kernel whenever you want).  If you want to compile
2793
  it as a module, say M here and read Documentation/modules.txt.
2794
 
2795
Sun LANCE Ethernet support
2796
CONFIG_SUN_LANCE
2797
  This is support for lance Ethernet cards on Sun workstations such as
2798
  the SPARCstation IPC (any SPARC with a network interface 'le0' under
2799
  SunOS basically).
2800
 
2801
Sun Intel Ethernet support
2802
CONFIG_SUN_INTEL
2803
  This is support for the Intel Ethernet cards on some Sun
2804
  workstations (all those with a network interface 'ie0' under SunOS).
2805
 
2806
Western Digital/SMC cards
2807
CONFIG_NET_VENDOR_SMC
2808
  If you have a network (Ethernet) card belonging to this class, say Y
2809
  and read the Ethernet-HOWTO, available via FTP (user: anonymous) in
2810
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. If you plan to use more than
2811
  one network card under Linux, read the Multiple-Ethernet-mini-HOWTO,
2812
  available from sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini. Note that
2813
  the answer to this question doesn't directly affect the kernel:
2814
  saying N will just cause this configure script to skip all the
2815
  questions about Western Digital cards. If you say Y, you will be
2816
  asked for your specific card in the following questions.
2817
  If you plan to use more than one network card under Linux,
2818
  read the Multiple-Ethernet-mini-HOWTO, available from
2819
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2820
 
2821
WD80*3 support
2822
CONFIG_WD80x3
2823
  If you have a network (Ethernet) card of this type, say Y and read
2824
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
2825
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. This driver is also available
2826
  as a module ( = code which can be inserted in and removed from the
2827
  running kernel whenever you want). If you want to compile it as a
2828
  module, say M here and read Documentation/modules.txt as well as
2829
  Documentation/networking/net-modules.txt.
2830
  If you plan to use more than one network card under Linux,
2831
  read the Multiple-Ethernet-mini-HOWTO, available from
2832
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2833
 
2834
SMC Ultra support
2835
CONFIG_ULTRA
2836
  If you have a network (Ethernet) card of this type, say Y and read
2837
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
2838
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  This driver is also
2839
  available as a module ( = code which can be inserted in and removed
2840
  from the running kernel whenever you want). If you want to compile
2841
  it as a module, say M here and read Documentation/modules.txt as
2842
  well as Documentation/networking/net-modules.txt. If you plan to use
2843
  more than one network card under Linux, read the
2844
  Multiple-Ethernet-mini-HOWTO, available from
2845
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2846
  Important: There have been many reports that, with some motherboards
2847
  mixing an SMC Ultra and an Adaptec AHA1542 SCSI card causes
2848
  corruption problems with many operating systems.
2849
 
2850
SMC Ultra32 support
2851
CONFIG_ULTRA32
2852
  This is support for the SMC Ultra32 EISA card in shared memory mode.
2853
  If you have a network (Ethernet) card of this type, say Y and read
2854
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
2855
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  This driver is also
2856
  available as a module ( = code which can be inserted in and removed
2857
  from the running kernel whenever you want). If you want to compile
2858
  it as a module, say M here and read Documentation/modules.txt as
2859
  well as Documentation/networking/net-modules.txt. If you plan to use
2860
  more than one network card under Linux, read the
2861
  Multiple-Ethernet-mini-HOWTO, available from
2862
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2863
 
2864
SMC 9194 Support
2865
CONFIG_SMC9194
2866
  This is support for the SMC9xxx based Ethernet cards.  Choose this
2867
  option if you have a DELL laptop with the docking station, or
2868
  another SMC9192/9194 based chipset.  Say Y if you want it compiled
2869
  into the kernel, and read the file drivers/net/README.smc9 and
2870
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
2871
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  This driver is also
2872
  available as a module ( = code which can be inserted in and removed
2873
  from the running kernel whenever you want). If you want to compile
2874
  it as a module, say M here and read Documentation/modules.txt as
2875
  well as Documentation/networking/net-modules.txt. If you plan to use
2876
  more than one network card under Linux, read the
2877
  Multiple-Ethernet-mini-HOWTO, available from
2878
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2879
 
2880
AMD LANCE and PCnet (AT1500 and NE2100) support
2881
CONFIG_LANCE
2882
  If you have a network (Ethernet) card of this type, say Y and read
2883
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
2884
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. If you plan to use more than
2885
  one network card under Linux, read the Multiple-Ethernet-mini-HOWTO,
2886
  available from sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2887
 
2888
3COM cards
2889
CONFIG_NET_VENDOR_3COM
2890
  If you have a network (Ethernet) card belonging to this class, say Y
2891
  and read the Ethernet-HOWTO, available via FTP (user: anonymous) in
2892
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  Note that the answer to this
2893
  question doesn't directly affect the kernel: saying N will just
2894
  cause this configure script to skip all the questions about 3COM
2895
  cards. If you say Y, you will be asked for your specific card in the
2896
  following questions. If you plan to use more than one network card
2897
  under Linux, read the Multiple-Ethernet-mini-HOWTO, available from
2898
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2899
 
2900
3c501 support
2901
CONFIG_EL1
2902
  If you have a network (Ethernet) card of this type, say Y and read
2903
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
2904
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  Also, consider buying a new
2905
  card, since the 3c501 is slow and obsolete.  This driver is also
2906
  available as a module ( = code which can be inserted in and removed
2907
  from the running kernel whenever you want).  If you want to compile
2908
  it as a module, say M here and read Documentation/modules.txt as
2909
  well as Documentation/networking/net-modules.txt.
2910
  If you plan to use more than one network card under Linux,
2911
  read the Multiple-Ethernet-mini-HOWTO, available from
2912
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini -- and don't use 3c501s.
2913
 
2914
3c503 support
2915
CONFIG_EL2
2916
  If you have a network (Ethernet) card of this type, say Y and read
2917
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
2918
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. This driver is also available
2919
  as a module ( = code which can be inserted in and removed from the
2920
  running kernel whenever you want). If you want to compile it as a
2921
  module, say M here and read Documentation/modules.txt as well as
2922
  Documentation/networking/net-modules.txt.
2923
  If you plan to use more than one network card under Linux,
2924
  read the Multiple-Ethernet-mini-HOWTO, available from
2925
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2926
 
2927
3c505 support
2928
CONFIG_ELPLUS
2929
  Information about this network (Ethernet) card can be found in
2930
  Documentation/networking/3c505.txt. If you have a card of this type,
2931
  say Y and read the Ethernet-HOWTO, available via FTP (user:
2932
  anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you want to
2933
  compile this as a module ( = code which can be inserted in and
2934
  removed from the running kernel whenever you want), say M here and
2935
  read Documentation/modules.txt as well as
2936
  Documentation/networking/net-modules.txt.
2937
  If you plan to use more than one network card under Linux,
2938
  read the Multiple-Ethernet-mini-HOWTO, available from
2939
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2940
 
2941
3c507 support
2942
CONFIG_EL16
2943
  If you have a network (Ethernet) card of this type, say Y and read
2944
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
2945
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. This driver is also available
2946
  as a module ( = code which can be inserted in and removed from the
2947
  running kernel whenever you want). If you want to compile it as a
2948
  module, say M here and read Documentation/modules.txt as well as
2949
  Documentation/networking/net-modules.txt.
2950
  If you plan to use more than one network card under Linux,
2951
  read the Multiple-Ethernet-mini-HOWTO, available from
2952
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2953
 
2954
3c509/3c579 support
2955
CONFIG_EL3
2956
  If you have a network (Ethernet) card belonging to the 3Com
2957
  EtherLinkIII series, say Y and read the Ethernet-HOWTO, available
2958
  via FTP (user: anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.
2959
  If you want to compile this as a module ( = code which can be
2960
  inserted in and removed from the running kernel whenever you want),
2961
  say M here and read Documentation/modules.txt as well as
2962
  Documentation/networking/net-modules.txt. If you plan to use more
2963
  than one network card under Linux, read the
2964
  Multiple-Ethernet-mini-HOWTO, available from
2965
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini. If your card is not
2966
  working you may need to use the DOS setup disk to disable Plug &
2967
  Play mode, and to select the default media type.
2968
 
2969
3c590 series (592/595/597) "Vortex" support
2970
CONFIG_VORTEX
2971
  If you have a network (Ethernet) card of this type, say Y and read
2972
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
2973
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. More specific information is
2974
  in Documentation/networking/vortex.txt and in the comments at the
2975
  beginning of drivers/net/3c59x.c. If you want to compile this
2976
  as a module ( = code which can be inserted in and removed from the
2977
  running kernel whenever you want), say M here and read
2978
  Documentation/modules.txt as well as
2979
  Documentation/networking/net-modules.txt. If you plan to use more
2980
  than one network card under Linux, read the
2981
  Multiple-Ethernet-mini-HOWTO, available from
2982
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2983
 
2984
Other ISA cards
2985
CONFIG_NET_ISA
2986
  If your network (Ethernet) card hasn't been mentioned yet and its
2987
  bus system (that's the way the components of the card talk to each
2988
  other) is ISA (as opposed to EISA, VLB or PCI), say Y. Make sure you
2989
  know the name of your card. Read the Ethernet-HOWTO, available via
2990
  FTP (user: anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO. If
2991
  unsure, say Y.  Note that the answer to this question doesn't
2992
  directly affect the kernel: saying N will just cause this configure
2993
  script to skip all the remaining ISA network card questions.  If you
2994
  say Y, you will be asked for your specific card in the following
2995
  questions.  If you plan to use more than one network card under
2996
  Linux, read the Multiple-Ethernet-mini-HOWTO, available from
2997
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
2998
 
2999
ARCnet support
3000
CONFIG_ARCNET
3001
  If you have a network card of this type, say Y and check out the
3002
  (arguably) beautiful poetry in Documentation/networking/arcnet.txt.
3003
  You might also want to have a look at the Ethernet-HOWTO, available
3004
  via FTP (user: anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO
3005
  (even though ARCnet is not really Ethernet).  This driver is also
3006
  available as a module ( = code which can be inserted in and removed
3007
  from the running kernel whenever you want).  If you want to compile
3008
  it as a module, say M here and read Documentation/modules.txt as
3009
  well as Documentation/networking/net-modules.txt. If you plan to
3010
  use more than one network card under Linux, read the
3011
  Multiple-Ethernet-mini-HOWTO, available from
3012
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3013
 
3014
Enable arc0e (ARCnet "ether-encap" packet format)
3015
CONFIG_ARCNET_ETH
3016
  This allows you to use "Ethernet encapsulation" with your ARCnet
3017
  card via the virtual arc0e device.  You only need arc0e if you want
3018
  to talk to nonstandard ARCnet software, specifically,
3019
  DOS/Windows-style "NDIS" drivers.  You do not need to enable this
3020
  option to communicate with industry-standard RFC1201
3021
  implementations, like the arcether.com packet driver or most
3022
  DOS/Windows ODI drivers.  RFC1201 is included automatically as the
3023
  arc0 device.  Please read the ARCnet documentation in
3024
  Documentation/networking/arcnet.txt for more information about
3025
  using arc0e and arc0s.
3026
 
3027
Enable arc0s (ARCnet RFC1051 packet format)
3028
CONFIG_ARCNET_1051
3029
  This allows you to use RFC1051 with your ARCnet card via the virtual
3030
  arc0s device.  You only need arc0s if you want to talk to ARCnet
3031
  software complying with the "old" standard, specifically, the DOS
3032
  arcnet.com packet driver, Amigas running AmiTCP, and some variants
3033
  of NetBSD. You do not need to enable this option to communicate with
3034
  industry-standard RFC1201 implementations, like the arcether.com
3035
  packet driver or most DOS/Windows ODI drivers.  RFC1201 is included
3036
  automatically as the arc0 device.  Please read the ARCnet
3037
  documentation in Documentation/networking/arcnet.txt for more
3038
  information about using arc0e and arc0s.
3039
 
3040
Cabletron E21xx support
3041
CONFIG_E2100
3042
  If you have a network (Ethernet) card of this type, say Y and read
3043
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3044
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. This driver is also available
3045
  as a module ( = code which can be inserted in and removed from the
3046
  running kernel whenever you want). If you want to compile it as a
3047
  module, say M here and read Documentation/modules.txt as well as
3048
  Documentation/networking/net-modules.txt.
3049
  If you plan to use more than one network card under Linux,
3050
  read the Multiple-Ethernet-mini-HOWTO, available from
3051
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3052
 
3053
DEPCA support
3054
CONFIG_DEPCA
3055
  If you have a network (Ethernet) card of this type, say Y and read
3056
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3057
  sunsite.unc.edu:/pub/Linux/docs/HOWTO as well as
3058
  drivers/net/depca.c.  If you want to compile this as a module
3059
  (= code which can be inserted in and removed from the running kernel
3060
  whenever you want), say M here and read Documentation/modules.txt as
3061
  well as Documentation/networking/net-modules.txt. If you plan to use
3062
  more than one network card under Linux, read the
3063
  Multiple-Ethernet-mini-HOWTO, available from
3064
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3065
 
3066
EtherWorks 3 support
3067
CONFIG_EWRK3
3068
  This driver supports the DE203, DE204 and DE205 network (Ethernet)
3069
  cards. If this is for you, say Y and read drivers/net/README.ewrk3
3070
  in the kernel source as well as the Ethernet-HOWTO, available via
3071
  FTP (user: anonymous) from sunsite.unc.edu:/pub/Linux/docs/HOWTO.
3072
  If you want to compile this as a module ( = code which can be
3073
  inserted in and removed from the running kernel whenever you want),
3074
  say M here and read Documentation/modules.txt as well as
3075
  Documentation/networking/net-modules.txt. If you plan to use more
3076
  than one network card under Linux, read the
3077
  Multiple-Ethernet-mini-HOWTO, available from
3078
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3079
 
3080
SEEQ8005 support
3081
CONFIG_SEEQ8005
3082
  This is a driver for the SEEQ 8005 network (Ethernet) card. If this
3083
  is for you, read the Ethernet-HOWTO, available via FTP (user:
3084
  anonymous) from sunsite.unc.edu:/pub/Linux/docs/HOWTO. If you plan
3085
  to use more than one network card under Linux, read the
3086
  Multiple-Ethernet-mini-HOWTO, available from
3087
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3088
 
3089
AT1700 support
3090
CONFIG_AT1700
3091
  If you have a network (Ethernet) card of this type, say Y and read
3092
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3093
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. This driver is also available
3094
  as a module ( = code which can be inserted in and removed from the
3095
  running kernel whenever you want). If you want to compile it as a
3096
  module, say M here and read Documentation/modules.txt as well as
3097
  Documentation/networking/net-modules.txt.
3098
  If you plan to use more than one network card under Linux,
3099
  read the Multiple-Ethernet-mini-HOWTO, available from
3100
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3101
 
3102
FMV-181/182/183/184 support
3103
CONFIG_FMV18X
3104
  If you have a Fujitsu FMV-181/182/183/184 network (Ethernet) card,
3105
  say Y and read the Ethernet-HOWTO, available via FTP (user:
3106
  anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.
3107
  This driver is also available as a module ( = code which can be
3108
  inserted in and removed from the running kernel whenever you want).
3109
  If you want to compile it as a module, say M here and read
3110
  Documentation/modules.txt as well as
3111
  Documentation/networking/net-modules.txt.
3112
  If you plan to use more than one network card under Linux,
3113
  read the Multiple-Ethernet-mini-HOWTO, available from
3114
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3115
  If you use FMV-183 or FMV-184 and it is not working, you may need
3116
  to disable Plug & Play mode of the card.
3117
 
3118
Intel EtherExpress/Pro 100B support'
3119
CONFIG_EEXPRESS_PRO100B
3120
  If you have an Intel EtherExpress Pro 100 10/100Mbps PCI Ethernet
3121
  card, answer yes.  As of kernel release 2.0.31 this driver was
3122
  still experimental.
3123
 
3124
EtherExpressPro support
3125
CONFIG_EEXPRESS_PRO
3126
  If you have a network (Ethernet) card of this type, say Y and read
3127
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3128
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. This driver is also available
3129
  as a module ( = code which can be inserted in and removed from the
3130
  running kernel whenever you want). If you want to compile it as a
3131
  module, say M here and read Documentation/modules.txt as well as
3132
  Documentation/networking/net-modules.txt.
3133
  If you plan to use more than one network card under Linux,
3134
  read the Multiple-Ethernet-mini-HOWTO, available from
3135
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3136
 
3137
EtherExpress support
3138
CONFIG_EEXPRESS
3139
  If you have an EtherExpress16 network (Ethernet) card, say Y and
3140
  read the Ethernet-HOWTO, available via FTP (user: anonymous) in
3141
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. Note that the Intel
3142
  EtherExpress16 card used to be regarded as a very poor choice
3143
  because the driver was very unreliable. We now have a new driver
3144
  that should do better. If you want to compile this driver as a
3145
  module ( = code which can be inserted in and removed from the
3146
  running kernel whenever you want), say M here and read
3147
  Documentation/modules.txt as well as
3148
  Documentation/networking/net-modules.txt. If you plan to use more
3149
  than one network card under Linux, read the
3150
  Multiple-Ethernet-mini-HOWTO, available from
3151
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3152
 
3153
NI5210 support
3154
CONFIG_NI52
3155
  If you have a network (Ethernet) card of this type, say Y and read
3156
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3157
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. If you plan to use more than
3158
  one network card under Linux, read the Multiple-Ethernet-mini-HOWTO,
3159
  available from sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3160
 
3161
NI6510 support
3162
CONFIG_NI65
3163
  If you have a network (Ethernet) card of this type, say Y and read
3164
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3165
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. If you plan to use more than
3166
  one network card under Linux, read the Multiple-Ethernet-mini-HOWTO,
3167
  available from sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3168
 
3169
Ottawa PI and PI/2 support
3170
CONFIG_PI
3171
  This is a driver for the Ottawa Amateur Radio Club PI and PI2 cards,
3172
  which are commonly used to send internet traffic over amateur radio.
3173
  More information about these cards is on the WWW at
3174
  http://hydra.carleton.ca/info/pi2.html (To browse the WWW, you need
3175
  to have access to a machine on the Internet that has one of the
3176
  programs lynx, netscape or Mosaic). If you have one of these cards,
3177
  you can say Y here and should read the HAM-HOWTO, available via FTP
3178
  (user: anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO. Also,
3179
  you should have said Y to "AX.25 support" above, because AX.25 is
3180
  the protocol used for digital traffic over radio links.
3181
 
3182
Gracilis PackeTwin support
3183
CONFIG_PT
3184
  This card is similar to the PI card (mentioned above).  It is used
3185
  mainly by amateur radio operators for packet radio.  You should have
3186
  already said Y to "AX.25 support" as this card uses that protocol.
3187
  More information about this driver can be found in the file
3188
  drivers/net/README.pt.  NOTE: The card is capable of DMA and full
3189
  duplex but neither of these have been coded in the driver as yet.
3190
 
3191
AT&T WaveLAN & DEC RoamAbout DS support
3192
CONFIG_WAVELAN
3193
    The Lucent Wavelan (formerly NCR and AT&T ; or DEC RoamAbout DS)
3194
  is a Radio LAN (wireless Ethernet-like) at 900 MHz and 2.4 GHz.
3195
    This driver support the ISA version of the Wavelan. A driver for
3196
  the pcmcia hardware is available in David Hinds's pcmcia package.
3197
    This driver is fairly stable and may be compiled as a module
3198
  (wavelan.o). It implements many nice feature and the Wireless
3199
  Extensions (you must get the Wireless tools from the net).
3200
    For documentation, refer to:
3201
      o the wavelan man page, wireless tools man pages
3202
      o wavelan.p.h and the source code
3203
      o Ethernet-HOWTO, Multiple-Ethernet-mini-HOWTO, Module-HOWTO
3204
      o More documentation to come when I will have the time :-)
3205
 
3206
HP PCLAN+ (27247B and 27252A) support
3207
CONFIG_HPLAN_PLUS
3208
  If you have a network (Ethernet) card of this type, say Y and read
3209
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3210
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. This driver is also available
3211
  as a module ( = code which can be inserted in and removed from the
3212
  running kernel whenever you want). If you want to compile it as a
3213
  module, say M here and read Documentation/modules.txt as well as
3214
  Documentation/networking/net-modules.txt.
3215
  If you plan to use more than one network card under Linux,
3216
  read the Multiple-Ethernet-mini-HOWTO, available from
3217
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3218
 
3219
HP PCLAN (27245 and other 27xxx series) support
3220
CONFIG_HPLAN
3221
  If you have a network (Ethernet) card of this type, say Y and read
3222
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3223
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. This driver is also available
3224
  as a module ( = code which can be inserted in and removed from the
3225
  running kernel whenever you want). If you want to compile it as a
3226
  module, say M here and read Documentation/modules.txt as well as
3227
  Documentation/networking/net-modules.txt.
3228
  If you plan to use more than one network card under Linux,
3229
  read the Multiple-Ethernet-mini-HOWTO, available from
3230
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3231
 
3232
HP 10/100VG PCLAN (ISA, EISA, PCI) support
3233
CONFIG_HP100
3234
  If you have a network (Ethernet) card of this type, say Y and read
3235
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3236
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you want to compile this
3237
  as a module ( = code which can be inserted in and removed from the
3238
  running kernel whenever you want), say M here and read
3239
  Documentation/modules.txt as well as
3240
  Documentation/networking/net-modules.txt. If you plan to use more
3241
  than one network card under Linux, read the
3242
  Multiple-Ethernet-mini-HOWTO, available from
3243
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3244
 
3245
NE2000/NE1000 support
3246
CONFIG_NE2000
3247
  If you have a network (Ethernet) card of this type, say Y and read
3248
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3249
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. This driver is also available
3250
  as a module ( = code which can be inserted in and removed from the
3251
  running kernel whenever you want). If you want to compile it as a
3252
  module, say M here and read Documentation/modules.txt as well as
3253
  Documentation/networking/net-modules.txt.
3254
  If you plan to use more than one network card under Linux,
3255
  read the Multiple-Ethernet-mini-HOWTO, available from
3256
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3257
 
3258
SK_G16 support
3259
CONFIG_SK_G16
3260
  If you have a network (Ethernet) card of this type, say Y and read
3261
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3262
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. If you plan to use more than
3263
  one network card under Linux, read the Multiple-Ethernet-mini-HOWTO,
3264
  available from sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3265
 
3266
EISA, VLB, PCI and on board controllers
3267
CONFIG_NET_EISA
3268
  This is another class of network cards which attach directly to the
3269
  bus. If you have one of those, say Y and read the Ethernet-HOWTO,
3270
  available via FTP (user: anonymous) from sunsite.unc.edu:
3271
  /pub/Linux/docs/HOWTO; if you are unsure, say Y.
3272
  Note that the answer to this question doesn't directly affect the
3273
  kernel: saying N will just cause this configure script to skip all
3274
  the questions about this class of network cards. If you say Y, you
3275
  will be asked for your specific card in the following questions.
3276
  If you plan to use more than one network card under Linux, read the
3277
  Multiple-Ethernet-mini-HOWTO, available from
3278
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3279
 
3280
Ansel Communications EISA 3200 support
3281
CONFIG_AC3200
3282
  If you have a network (Ethernet) card of this type, say Y and read
3283
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3284
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. This driver is also available
3285
  as a module ( = code which can be inserted in and removed from the
3286
  running kernel whenever you want). If you want to compile it as a
3287
  module, say M here and read Documentation/modules.txt as well as
3288
  Documentation/networking/net-modules.txt.
3289
  If you plan to use more than one network card under Linux,
3290
  read the Multiple-Ethernet-mini-HOWTO, available from
3291
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3292
 
3293
Apricot Xen-II on board Ethernet
3294
CONFIG_APRICOT
3295
  If you have a network (Ethernet) controller of this type, say Y and
3296
  read the Ethernet-HOWTO, available via FTP (user: anonymous) in
3297
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you want to compile this
3298
  as a module ( = code which can be inserted in and removed from the
3299
  running kernel whenever you want), say M here and read
3300
  Documentation/modules.txt as well as
3301
  Documentation/networking/net-modules.txt. If you plan to use more
3302
  than one network card under Linux, read the
3303
  Multiple-Ethernet-mini-HOWTO, available from
3304
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3305
 
3306
DE425, DE434, DE435 support
3307
CONFIG_DE4X5
3308
  This is support for the DIGITAL series of PCI/EISA Ethernet
3309
  cards. These include the DE425, DE434, DE435, DE450 and DE500
3310
  models. If you have a network card of this type, say Y and read
3311
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3312
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  More specific information is
3313
  contained in drivers/net/README.de4x5. This driver is also available
3314
  as a module ( = code which can be inserted in and removed from the
3315
  running kernel whenever you want). If you want to compile it as a
3316
  module, say M here and read Documentation/modules.txt as well as
3317
  Documentation/networking/net-modules.txt.
3318
  If you plan to use more than one network card under Linux,
3319
  read the Multiple-Ethernet-mini-HOWTO, available from
3320
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3321
 
3322
DECchip Tulip (dc21x4x) PCI support
3323
CONFIG_DEC_ELCP
3324
  This driver is developed for the SMC EtherPower series Ethernet
3325
  cards and also works with cards based on the DECchip
3326
  21040/21041/21140 (Tulip series) chips. (If your card is NOT SMC
3327
  EtherPower 10/100 PCI (smc9332dst), you can also try the driver from
3328
  "DE425, DE434, DE435 support", above.) However, most people with a
3329
  network card of this type will say Y here. Do read the
3330
  Ethernet-HOWTO, available via FTP (user: anonymous) in
3331
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. More specific information is
3332
  contained in Documentation/networking/tulip.txt. This driver is also
3333
  available as a module ( = code which can be inserted in and removed
3334
  from the running kernel whenever you want).  If you want to compile
3335
  it as a module, say M here and read Documentation/modules.txt as
3336
  well as Documentation/networking/net-modules.txt.
3337
 
3338
Digi Intl. RightSwitch support
3339
CONFIG_DGRS
3340
  This is support for the Digi International RightSwitch series of
3341
  PCI/EISA Ethernet switch cards.  These include the SE-4 and the SE-6
3342
  models. If you have a network card of this type, say Y and read
3343
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3344
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  More specific information is
3345
  contained in drivers/net/README.dgrs. This driver is also available
3346
  as a module ( = code which can be inserted in and removed from the
3347
  running kernel whenever you want). If you want to compile it as a
3348
  module, say M here and read Documentation/modules.txt as well as
3349
  Documentation/networking/net-modules.txt.
3350
  If you plan to use more than one network card under Linux,
3351
  read the Multiple-Ethernet-mini-HOWTO, available from
3352
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3353
 
3354
ICL EtherTeam 16i/32 support
3355
CONFIG_ETH16I
3356
  If you have a network (Ethernet) card of this type, say Y and read
3357
  the Ethernet-HOWTO, available via FTP (user: anonymous) in
3358
  sunsite.unc.edu:/pub/Linux/docs/HOWTO. This driver is also available
3359
  as a module ( = code which can be inserted in and removed from the
3360
  running kernel whenever you want). If you want to compile it as a
3361
  module, say M here and read Documentation/modules.txt as well as
3362
  Documentation/networking/net-modules.txt.
3363
  If you plan to use more than one network card under Linux,
3364
  read the Multiple-Ethernet-mini-HOWTO, available from
3365
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3366
 
3367
TI ThunderLAN support
3368
CONFIG_TLAN
3369
  If you have a TLAN based network card which is supported by this
3370
  driver, say Y and read the Ethernet-HOWTO.  Devices currently
3371
  supported are the Compaq Netelligent 10, Netelligent 10/100, and
3372
  Internal NetFlex 3.  This driver is also available as a module.
3373
  Please email feedback to james.banks@caldera.com.
3374
 
3375
VIA Rhine support
3376
CONFIG_VIA_RHINE
3377
  If you have a VIA "rhine" based network card (Rhine-I (3043) or
3378
  Rhine-2 (VT86c100A)), say Y here. To build this driver as a module
3379
  say M.
3380
 
3381
Zenith Z-Note support
3382
CONFIG_ZNET
3383
  The Zenith Z-Note notebook computer has a built-in network
3384
  (Ethernet) card, and this is the Linux driver for it. Note that the
3385
  IBM Thinkpad 300 is compatible with the Z-Note and is also supported
3386
  by this driver. Read the Ethernet-HOWTO, available via FTP (user:
3387
  anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.
3388
 
3389
Pocket and portable adapters
3390
CONFIG_NET_POCKET
3391
  Cute little network (Ethernet) devices which attach to the parallel
3392
  port ("pocket adapters"), commonly used with laptops. If you have
3393
  one of those, say Y and read the Ethernet-HOWTO, available via FTP
3394
  (user: anonymous) from sunsite.unc.edu:/pub/Linux/docs/HOWTO. If you
3395
  want to plug a network card into the PCMCIA slot of your laptop
3396
  instead (PCMCIA is the standard for credit card size extension cards
3397
  used by all modern laptops), look in
3398
  cb-iris.stanford.edu:/pub/pcmcia and say N here.  Note that the
3399
  answer to this question doesn't directly affect the kernel: saying N
3400
  will just cause this configure script to skip all the questions
3401
  about this class of network devices.  If you say Y, you will be
3402
  asked for your specific device in the following questions.  If you
3403
  plan to use more than one network device under Linux, read the
3404
  Multiple-Ethernet-mini-HOWTO, available from
3405
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini. If you intend to use an
3406
  adapter attaching to the parallel port as well as a parallel
3407
  printer, you should compile both drivers as modules (if possible).
3408
 
3409
AT-LAN-TEC/RealTek pocket adapter support
3410
CONFIG_ATP
3411
  This is a network (Ethernet) device which attaches to your parallel
3412
  port. Read drivers/net/atp.c as well as the Ethernet-HOWTO,
3413
  available via FTP (user: anonymous) from
3414
  sunsite.unc.edu:/pub/Linux/docs/HOWTO if you want to use this. If
3415
  you plan to use more than one network card under Linux, read the
3416
  Multiple-Ethernet-mini-HOWTO, available from
3417
  sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini. If you intend to use
3418
  this driver, you should have said N to the Parallel Printer support,
3419
  because the two drivers don't like each other.
3420
 
3421
D-Link DE600 pocket adapter support
3422
CONFIG_DE600
3423
  This is a network (Ethernet) device which attaches to your parallel
3424
  port. Read drivers/net/README.DLINK as well as the Ethernet-HOWTO,
3425
  available via FTP (user: anonymous) from
3426
  sunsite.unc.edu:/pub/Linux/docs/HOWTO if you want to use this.  If
3427
  you want to compile this as a module ( = code which can be inserted
3428
  in and removed from the running kernel whenever you want), say M
3429
  here and read Documentation/modules.txt. If you intend to use this
3430
  pocket adapter as well as a parallel printer, you should compile
3431
  both drivers as modules. If you plan to use more than one network
3432
  card under Linux, read the Multiple-Ethernet-mini-HOWTO, available
3433
  from sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3434
 
3435
D-Link DE620 pocket adapter support
3436
CONFIG_DE620
3437
  This is a network (Ethernet) device which attaches to your parallel
3438
  port. Read drivers/net/README.DLINK as well as the Ethernet-HOWTO,
3439
  available via FTP (user: anonymous) from
3440
  sunsite.unc.edu:/pub/Linux/docs/HOWTO if you want to use this.  If
3441
  you want to compile this as a module ( = code which can be inserted
3442
  in and removed from the running kernel whenever you want), say M
3443
  here and read Documentation/modules.txt. If you intend to use this
3444
  pocket adapter as well as a parallel printer, you should compile
3445
  both drivers as modules. If you plan to use more than one network
3446
  card under Linux, read the Multiple-Ethernet-mini-HOWTO, available
3447
  from sunsite.unc.edu:/pub/Linux/docs/HOWTO/mini.
3448
 
3449
Token Ring driver support
3450
CONFIG_TR
3451
  Token Ring is IBM's way of communication on a local network; the
3452
  rest of the world uses Ethernet. If you are connected to a token
3453
  ring network and want to use your Token Ring card under Linux,
3454
  say Y.  Most people can say N here.
3455
 
3456
IBM Tropic chipset based adapter support
3457
CONFIG_IBMTR
3458
  This is support for all IBM Token Ring cards that don't use DMA. If
3459
  you have such a beast, say Y, otherwise N. Warning: this driver will
3460
  almost definitely fail if more than one active Token Ring card is
3461
  present. This driver is also available as a module ( = code which
3462
  can be inserted in and removed from the running kernel whenever you
3463
  want). If you want to compile it as a module, say M here and read
3464
  Documentation/modules.txt.
3465
 
3466
Support non-SCSI/IDE/ATAPI drives
3467
CONFIG_CD_NO_IDESCSI
3468
  If you have a CDROM drive that is neither SCSI nor IDE/ATAPI, say Y
3469
  here, otherwise N. Read the CDROM-HOWTO, available via FTP (user:
3470
  anonymous) from sunsite.unc.edu:/pub/Linux/docs/HOWTO. Note that the
3471
  answer to this question doesn't directly affect the kernel: saying N
3472
  will just cause this configure script to skip all the questions
3473
  about these CDROM drives. If you are unsure what you have, say Y and
3474
  find out whether you have one of the following drives.
3475
  For each of these drivers, a file Documentation/cdrom/
3476
  exists. Especially in cases where you do not know exactly which kind
3477
  of drive you have you should read there.
3478
  Most of these drivers use a file include/linux/.h where
3479
  you can define your interface parameters and switch some internal
3480
  goodies.
3481
  All these CDROM drivers are also usable as a module ( = code which
3482
  can be inserted in and removed from the running kernel whenever you
3483
  want).  If you want to compile them as module, say M instead of Y
3484
  and read Documentation/modules.txt.
3485
  If you want to use any of these CDROM drivers, you also have to say
3486
  Y to "ISO9660 cdrom filesystem support" below (this answer will get
3487
  "defaulted" for you if you enable any of the Linux CDROM drivers).
3488
 
3489
Sony CDU31A/CDU33A CDROM support
3490
CONFIG_CDU31A
3491
  These CDROM drives have a spring-pop-out caddyless drawer, and a
3492
  rectangular green LED centered beneath it.  NOTE: these CDROM drives
3493
  will not be auto detected by the kernel at boot time; you have to
3494
  provide the interface address as an option to the kernel at boot
3495
  time as described in Documentation/cdrom/cdu31a or fill in your
3496
  parameters into linux/drivers/cdrom/cdu31a.c. See the documentation
3497
  of your boot loader (lilo or loadlin) about how to pass options to
3498
  the kernel. The lilo procedure is also explained in the SCSI-HOWTO.
3499
 
3500
Standard Mitsumi [no XA/Multisession] CDROM support
3501
CONFIG_MCD
3502
  This is the older of the two drivers for the older Mitsumi models
3503
  LU-005, FX-001 and FX-001D. This is not the right driver for
3504
  the FX-001DE and the triple or quad speed models (all these are
3505
  IDE/ATAPI models).
3506
  With the old LU-005 model, the whole drive chassis slides out for
3507
  cd insertion. The FX-xxx models use a motorized tray type mechanism.
3508
  Note that this driver does not support XA or MultiSession CDs
3509
  (PhotoCDs).  There is a new driver (next question) which can do
3510
  this. If you want that one, say N here.
3511
  If the driver doesn't work out of the box, you might want to have
3512
  a look at linux/include/linux/mcd.h.
3513
 
3514
Mitsumi [XA/MultiSession] support
3515
CONFIG_MCDX
3516
  Use this driver if you want to be able to read XA or MultiSession
3517
  CDs (PhotoCDs) as well as ordinary CDs with your Mitsumi LU-005,
3518
  FX-001 or FX-001D CDROM drive.  In addition, this driver uses much
3519
  less kernel memory than the old one, if that is a concern.  This
3520
  driver is able to support more than one drive, but each drive needs
3521
  a separate interface card.  Check out Documentation/cdrom/mcdx.
3522
 
3523
Matsushita/Panasonic/Creative, Longshine, TEAC CDROM support
3524
CONFIG_SBPCD
3525
  This driver supports most of the drives which use the Panasonic or
3526
  SoundBlaster interface.
3527
  The Matsushita CR-521, CR-522, CR-523, CR-562, CR-563 drives
3528
  (sometimes labeled "Creative"), the CreativeLabs CD200, the
3529
  Longshine LCS-7260, the "IBM External ISA CDROM" (in fact a CR-56x
3530
  model), the TEAC CD-55A fall under this category. Some other
3531
  "electrically compatible" drives (Vertos, Genoa, some Funai models)
3532
  are currently not supported; for the Sanyo H94A drive currently a
3533
  separate driver (asked later) is responsible.  Most drives have a
3534
  uniquely shaped faceplate, with a caddyless motorized drawer, but
3535
  without external brand markings. The older CR-52x drives have a
3536
  caddy and manual loading/eject, but still no external markings.  The
3537
  driver is able to do an extended auto-probing for interface
3538
  addresses and drive types; this can help to find facts in cases you
3539
  are not sure, but can consume some time during the boot process if
3540
  none of the supported drives gets found.
3541
  Once your drive got found, you should enter the reported parameters
3542
  into linux/include/linux/sbpcd.h and set "DISTRIBUTION 0" there.
3543
  This driver can support up to four CDROM interface cards, and each
3544
  card can support up to four CDROM drives; if you say Y here, you
3545
  will be asked how many controllers you have. If compiled as a
3546
  module, only one interface card (but with up to four drives) is
3547
  usable.
3548
 
3549
Matsushita/Panasonic, ... second CDROM controller support
3550
CONFIG_SBPCD2
3551
  Say Y here only if you have two CDROM controller boards of this type
3552
  (usually only if you have more than four drives). You should enter
3553
  the parameters for the second, third and fourth interface card into
3554
  linux/include/linux/sbpcd.h before compiling the new kernel.
3555
 
3556
Aztech/Orchid/Okano/Wearnes/TXC/CyDROM  CDROM support
3557
CONFIG_AZTCD
3558
  This is your driver if you have an Aztech CDA268-01A, Orchid
3559
  CD-3110, Okano or Wearnes CDD110, Conrad TXC, or CyCDROM CR520 or
3560
  CR540 CDROM drive. This driver -- just like all these CDROM drivers
3561
  -- is NOT for CDROM drives with IDE/ATAPI interface, such as Aztech
3562
  CDA269-031SE.
3563
 
3564
Sony CDU535 CDROM support
3565
CONFIG_CDU535
3566
  This is the driver for the older Sony CDU-535 and CDU-531 CDROM
3567
  drives.
3568
 
3569
Goldstar R420 CDROM support
3570
CONFIG_GSCD
3571
  If this is your CDROM drive, say Y here.
3572
  As described in linux/Documentation/cdrom/gscd, you might have to
3573
  change a setting in the file include/linux/gscd.h before compiling
3574
  the kernel.
3575
 
3576
Philips/LMS CM206 CDROM support
3577
CONFIG_CM206
3578
  If you have a Philips/LMS CDROM drive cm206 in combination with a
3579
  cm260 host adapter card, say Y here.
3580
 
3581
Optics Storage DOLPHIN 8000AT CDROM support
3582
CONFIG_OPTCD
3583
  This is the driver for the 'DOLPHIN' drive with a 34-pin Sony
3584
  compatible interface. It also works with the Lasermate CR328A. If
3585
  you have one of those, say Y. This driver does not work for the
3586
  Optics Storage 8001 drive; use the IDE-ATAPI CDROM driver for that
3587
  one.
3588
 
3589
Sanyo CDR-H94A CDROM support
3590
CONFIG_SJCD
3591
  If this is your CDROM drive, say Y here. Command line option
3592
  (or 'append=' option in /etc/lilo.conf) is:
3593
                sjcd=
3594
  Here 'port' is the base i/o address used by the drive. It defaults
3595
  to port=0x340.
3596
 
3597
Soft configurable cdrom interface card support
3598
CONFIG_CDI_INIT
3599
  If you want to include boot-time initialization of any cdrom
3600
  interface card that is software configurable, say Y here.
3601
  Currently only the ISP16/MAD16/Mozart cards are supported.
3602
 
3603
ISP16/MAD16/Mozart soft configurable cdrom interface support
3604
CONFIG_ISP16_CDI
3605
  If you want any of these cdrom interface cards based on the
3606
  OPTi 82C928 or 82C929 chips get detected and possibly configured
3607
  at boot time, please say Y. Boot time command line options (or
3608
  'append=' options in /etc/lilo.conf) are:
3609
                isp16=,,,
3610
  Here 'port','irq' and 'dma' are the base i/o address, IRQ number and
3611
  DMA line assumed to be used by the attached cdrom
3612
  drive. 'drive_type' is the type of cdrom drive or its emulation
3613
  mode. Valid values for drive_type include: Sanyo, Panasonic (same as
3614
  Sanyo), Sony and Mitsumi.  Default values are: port=0x340, irq=0,
3615
  dma=0, drive_type=Sanyo.
3616
  The command line
3617
                isp16=noisp16
3618
  will skip detection and configuration after all.
3619
  N.B. options are case sensitive.
3620
  Read Documentation/cdrom/isp16 for details.
3621
 
3622
Quota support
3623
CONFIG_QUOTA
3624
  If you say Y here, you will be able to set per user limits for disk
3625
  usage (also called diskquotas). Currently, it works only for the
3626
  ext2 filesystem. You need additional software in order to use quota
3627
  support; check the file Documentation/Changes for that. Probably the
3628
  quota support is only useful for multi user systems. If unsure,
3629
  say N.
3630
 
3631
Mandatory lock support
3632
CONFIG_LOCK_MANDATORY
3633
  File locking is a system designed to prevent that several processes
3634
  write to the same file at the same time, causing data
3635
  corruption. Mandatory file locking is more secure than the usual
3636
  algorithm and is used by some Unix System 5 style database
3637
  applications. For details, read Documentation/mandatory.txt. To use
3638
  this option safely you must have newer NFS daemons, new samba, new
3639
  netatalk, new mars-nwe and other file servers. At the time of
3640
  writing none of these are available. So it's safest to say N here
3641
  unless you really know that you need this feature.
3642
 
3643
Minix fs support
3644
CONFIG_MINIX_FS
3645
  Minix is a simple operating system used in many classes about OS's.
3646
  The minix filesystem ( = method to organize files on a hard disk
3647
  partition or a floppy disk) was the original filesystem for Linux,
3648
  has been superseded by the second extended filesystem ext2fs but is
3649
  still used for root/boot and other floppies or ram disks since it is
3650
  leaner. You don't want to use it on your hard disk because of
3651
  certain built-in restrictions. This option will enlarge your kernel
3652
  by about 25 kB. Everyone should say Y or M so that they are able to
3653
  read this common floppy format. If you want to compile this as
3654
  a module ( = code which can be inserted in and removed from the
3655
  running kernel whenever you want), say M here and read
3656
  Documentation/modules.txt. Note that the filesystem of your root
3657
  partition cannot be compiled as a module.
3658
 
3659
Extended fs support
3660
CONFIG_EXT_FS
3661
  This is the old Linux filesystem ( = method to organize files on a
3662
  hard disk partition or a floppy disk) and not in use anymore.
3663
  It enlarges your kernel by about 25 kB. Let's all kill this beast.
3664
  Say N.
3665
 
3666
Second extended fs support
3667
CONFIG_EXT2_FS
3668
  This is the de facto standard Linux filesystem ( = method to
3669
  organize files on a storage device) for hard disks. You want to
3670
  say Y, unless you intend to use Linux exclusively from inside a DOS
3671
  partition using the umsdos filesystem. The advantage of the latter
3672
  is that you can get away without repartitioning your hard drive
3673
  (which often implies backing everything up and restoring
3674
  afterwards); the disadvantage is that Linux becomes susceptible to
3675
  DOS viruses and that umsdos is somewhat slower than ext2fs. Even if
3676
  you want to run Linux in this fashion, it might be a good idea to
3677
  have ext2fs around: it enables you to read more floppy disks and
3678
  facilitates the transition to a *real* Linux partition later.
3679
  Another (rare) case which doesn't require ext2fs is a diskless Linux
3680
  box which mounts all files over the network using NFS (in this case
3681
  it's sufficient to enable NFS filesystem support below; if you are
3682
  planning to do this, have a look at the netboot package in
3683
  /pub/Linux/system/Linux-boot/, available via FTP (user: anonymous)
3684
  from sunsite.unc.edu, extract with "tar xzvf filename"). There is a
3685
  short ext2fs-FAQ, available via FTP (user: anonymous) in
3686
  sunsite.unc.edu:/pub/Linux/docs/faqs. This option will enlarge your
3687
  kernel by about 41 kB. Default is Y.
3688
 
3689
xiafs filesystem support
3690
CONFIG_XIA_FS
3691
  This is an old filesystem ( = method to organize files on a hard
3692
  disk partition or a floppy disk) and not in use anymore. This option
3693
  would enlarge your kernel by about 28 kB. Let's all kill this beast:
3694
  say N. If you want to compile this as a module ( = code which can
3695
  be inserted in and removed from the running kernel whenever you
3696
  want), say M here and read Documentation/modules.txt. Note that the
3697
  filesystem of your root partition cannot be compiled as a module.
3698
 
3699
fat fs support
3700
CONFIG_FAT_FS
3701
  If you want to use one of the FAT-based filesystems (the MS-DOS,
3702
  VFAT (Windows'95) and UMSDOS filesystems), then you must include
3703
  FAT support. This is not a filesystem in itself, but it provides
3704
  the foundation for the other filesystems. This option will enlarge
3705
  your kernel about 24 kB. If unsure, say Y. If you want to compile
3706
  this as a module however ( = code which can be inserted in and
3707
  removed from the running kernel whenever you want), say M here and
3708
  read Documentation/modules.txt. Note that if you compile the FAT
3709
  support as a module, you cannot compile any of the FAT-based
3710
  filesystems into the kernel -- they will have to be modules as well.
3711
  The filesystem of your root partition cannot be a module.
3712
 
3713
msdos fs support
3714
CONFIG_MSDOS_FS
3715
  This allows you to mount MSDOS partitions of your hard drive (unless
3716
  they are compressed; to access compressed MSDOS partitions under
3717
  Linux, you can either use the DOS emulator DOSEMU, described in the
3718
  DOSEMU-HOWTO, available via FTP (user: anonymous) at
3719
  sunsite.unc.edu:/pub/Linux/docs/HOWTO, or try dmsdosfs in
3720
  sunsite.unc.edu:/pub/Linux/system/Filesystems/dosfs. If you intend
3721
  to use dosemu with a non-compressed MSDOS partition, say Y here) and
3722
  MSDOS floppies. This means that file access becomes transparent,
3723
  i.e. the MSDOS files look and behave just like all other Unix files.
3724
  Another way to read and write MSDOS floppies from within Linux (but
3725
  not transparently) is with the mtools ("man mtools") program suite,
3726
  which doesn't require the msdos filesystem support.  If you want to
3727
  use umsdos, the Unix-like filesystem on top of DOS, which allows you
3728
  to run Linux from within a DOS partition without repartitioning,
3729
  you'll have to say Y or M here. If your have Windows'95 or Windows
3730
  NT installed on your MSDOS partitions, you should use the VFAT
3731
  filesystem instead, or you will not be able to see the long
3732
  filenames generated by Windows'95 / Windows NT. This option will
3733
  enlarge your kernel by about 7 kB. If unsure, say Y. This will only
3734
  work if you said Y to "fat fs support" as well. If you want to
3735
  compile this as a module however ( = code which can be inserted in
3736
  and removed from the running kernel whenever you want), say M here
3737
  and read Documentation/modules.txt. Note that the filesystem of your
3738
  root partition cannot be a module.
3739
 
3740
vfat fs support
3741
CONFIG_VFAT_FS
3742
  This allows you to mount MSDOS partitions of your hard drive. It
3743
  will let you use filenames in a way compatible with the long
3744
  filenames used by Windows'95 and Windows NT fat-based (not NTFS)
3745
  partitions. It does not support Windows'95 compressed filesystems.
3746
  You cannot use the VFAT filesystem for your root partition; use
3747
  UMSDOS instead. This option enlarges your kernel by about 10 kB and
3748
  it only works if you enabled the "fat fs support" above. Please read
3749
  the file Documentation/filesystems/vfat.txt for details.
3750
  If unsure, say N. If you want to compile this as a module ( = code
3751
  which can be inserted in and removed from the running kernel
3752
  whenever you want), say M here and read Documentation/modules.txt.
3753
 
3754
umsdos: Unix like fs on top of std MSDOS fs
3755
CONFIG_UMSDOS_FS
3756
  Say Y here if you want to run Linux from within an existing DOS
3757
  partition of your hard drive. The advantage of this is that you can
3758
  get away without repartitioning your hard drive (which often implies
3759
  backing everything up and restoring afterwards) and hence you're
3760
  able to quickly try out Linux or show it to your friends; the
3761
  disadvantage is that Linux becomes susceptible to DOS viruses and
3762
  that UMSDOS is somewhat slower than ext2fs.  Another use of umsdos
3763
  is to write files with long unix filenames to MSDOS floppies; it
3764
  also allows unix style softlinks and owner/permissions of files on
3765
  MSDOS floppies. You will need a program called umssync in order to
3766
  make use of umsdos. Read Documentation/filesystems/umsdos.txt. This
3767
  option enlarges your kernel by about 25 kB and it only works if you
3768
  enabled both "fat fs support" and "msdos fs support" above. If
3769
  unsure, say N.  If you want to compile this as a module ( = code
3770
  which can be inserted in and removed from the running kernel
3771
  whenever you want), say M here and read Documentation/modules.txt.
3772
  Note that the filesystem of your root partition cannot be a module.
3773
 
3774
nls: Native language codepages and Unicode support
3775
CONFIG_NLS
3776
  This is required by the FAT based filesystems and by the ISO9660
3777
  filesystem with Joliet support.  Joliet is a Microsoft extension
3778
  for CDROMs that supports Unicode.
3779
  This allows translation between different character sets.  When
3780
  dealing with the FAT based filesystems, there are two character
3781
  sets that are important. The first is the codepage.  Codepages are
3782
  character sets that are used by DOS to allow filenames to have
3783
  native language characters when character sets were limited to
3784
  256 characters. The codepage is the character set that is used to
3785
  store native language characters on disk.
3786
  The two most common codepages are 437 in the United States and 850
3787
  in much of Europe. The second important character set is the
3788
  input/output character set. This is the character set that is
3789
  displayed on the screen. In the United States, this will almost
3790
  always be the ISO 8859-1 character set. This is the default. Linux
3791
  will only do a translation of the FAT filenames, not the contents
3792
  of the files.
3793
 
3794
nls iso8859-1
3795
CONFIG_NLS_ISO8859_1
3796
  ISO8859-1 is the Latin 1 character set, and it covers most West
3797
  European languages such as Albanian, Catalan, Danish, Dutch,
3798
  English, Faeroese, Finnish, French, German, Galician, Irish,
3799
  Icelandic, Italian, Norwegian, Portuguese, Spanish, Swedish, and
3800
  Valencian.
3801
 
3802
nls iso8859-2
3803
CONFIG_NLS_ISO8859_2
3804
  ISO8859-2 is the Latin 2 character set, and it works for most
3805
  Latin-written Slavic and Central European languages: Czech, German,
3806
  Hungarian, Polish, Rumanian, Croatian, Slovak, Slovene.
3807
 
3808
nls iso8859-3
3809
CONFIG_NLS_ISO8859_3
3810
  ISO8859-3 is the Latin 3 character set, and it s popular with
3811
  authors of Esperanto, Galician, Maltese, and Turkish.
3812
 
3813
nls iso8859-4
3814
CONFIG_NLS_ISO8859_4
3815
  ISO8859-4 is the Latin 4 character set, and it introduces letters
3816
  for Estonian, Latvian, and Lithuanian. It is an incomplete
3817
  predecessor of Latin 6.
3818
 
3819
nls iso8859-5
3820
CONFIG_NLS_ISO8859_5
3821
  ISO8859-5 is a Cyrillic character set, and you can type Bulgarian,
3822
  Byelorussian, Macedonian, Russian, Serbian, and Ukrainian.
3823
  Note that the charset KOI8-R is preferred in Russia.
3824
 
3825
nls iso8859-6
3826
CONFIG_NLS_ISO8859_6
3827
  ISO8859-6 is the Arabic character set.
3828
 
3829
nls iso8859-7
3830
CONFIG_NLS_ISO8859_7
3831
  ISO8859-7 is the Modern Greek character set.
3832
 
3833
nls iso8859-8
3834
CONFIG_NLS_ISO8859_8
3835
  ISO8859-8 is the Hebrew character set.
3836
 
3837
nls iso8859-9
3838
CONFIG_NLS_ISO8859_9
3839
  ISO8859-9 is the Latin 5 character set, and it replaces the rarely
3840
  needed Icelandic letters in Latin 1 with the Turkish ones.
3841
  Useful in Turkey.
3842
 
3843
nls iso8859-10
3844
CONFIG_NLS_ISO8859_10
3845
  ISO8859-10 is the Latin 6 character set, and it adds the last
3846
  Inuit (Greenlandic) and Sami (Lappish) letters that were missing
3847
  in Latin 4 to cover the entire Nordic area.
3848
 
3849
nls koi8-r
3850
CONFIG_NLS_KOI8_R
3851
  This is the preferred Russian character set.
3852
 
3853
nls codepage 437
3854
CONFIG_NLS_CODEPAGE_437
3855
  This is the DOS codepage that is used in the United States and parts
3856
  of Canada.
3857
 
3858
nls codepage 737
3859
CONFIG_NLS_CODEPAGE_737
3860
  This is the codepage used by DOS for Greek.
3861
 
3862
nls codepage 775
3863
CONFIG_NLS_CODEPAGE_775
3864
  This is the codepage used by DOS for the Baltic Rim Languages.
3865
 
3866
nls codepage 850
3867
CONFIG_NLS_CODEPAGE_850
3868
  This is the DOS codepage that is used in much of Europe -- United
3869
  Kingdom, Germany, Spain, Italy, and [add more countries here].
3870
  It has some characters useful to many European languages that are
3871
  not part of codepage 437.
3872
 
3873
nls codepage 852
3874
CONFIG_NLS_CODEPAGE_852
3875
  This is the Latin 2 codepage used by DOS for much of Central and
3876
  Eastern Europe.  It has all the required characters for these
3877
  languages: Albanian, Croatian, Czech, English, Finnish, Hungarian,
3878
  Irish, German, Polish, Romanian, Serbian (Latin transcription),
3879
  Slovak, Slovenian, and Sorbian.
3880
 
3881
nls codepage 855
3882
CONFIG_NLS_CODEPAGE_855
3883
  This is the DOS codepage that is used for Cyrillic.
3884
 
3885
nls codepage 857
3886
CONFIG_NLS_CODEPAGE_857
3887
  This is the DOS codepage that is used for Turkish.
3888
 
3889
nls codepage 860
3890
CONFIG_NLS_CODEPAGE_860
3891
  This is the DOS codepage that is used for Portuguese.
3892
 
3893
nls codepage 861
3894
CONFIG_NLS_CODEPAGE_861
3895
  This is the DOS codepage that is used for Icelandic.
3896
 
3897
nls codepage 862
3898
CONFIG_NLS_CODEPAGE_862
3899
  This is the DOS codepage that is used for Hebrew.
3900
 
3901
nls codepage 863
3902
CONFIG_NLS_CODEPAGE_863
3903
  This is the DOS codepage that is used for Canadian French.
3904
 
3905
nls codepage 864
3906
CONFIG_NLS_CODEPAGE_864
3907
  This is the DOS codepage that is used for Arabic.
3908
 
3909
nls codepage 865
3910
CONFIG_NLS_CODEPAGE_865
3911
  This is the DOS codepage that is used in the Nordic European
3912
  countries.
3913
 
3914
nls codepage 866
3915
CONFIG_NLS_CODEPAGE_866
3916
  This is the DOS codepage that is used for Cyrillic/Russian.
3917
 
3918
nls codepage 869
3919
CONFIG_NLS_CODEPAGE_869
3920
  This is the DOS codepage that is used for Greek.
3921
 
3922
nls codepage 874
3923
CONFIG_NLS_CODEPAGE_874
3924
  This is the DOS codepage that is used for Thai.
3925
 
3926
/proc filesystem support
3927
CONFIG_PROC_FS
3928
  This is a virtual filesystem providing information about the status
3929
  of the system. "Virtual" means that it doesn't take up any space on
3930
  your hard disk: the files are created on the fly when you access
3931
  them. Also, you cannot read the files with less: you need to use
3932
  more or cat. The filesystem is explained in the Kernel Hacker's
3933
  Guide, available via FTP (user: anonymous) in
3934
  sunsite.unc.edu:/pub/Linux/docs/LDP and also on the proc(8) manpage
3935
  ("man 8 proc").  This option will enlarge your kernel by about 18
3936
  kB. It's totally cool; for example, "cat /proc/interrupts" gives
3937
  information about what the different IRQs are used for at the moment
3938
  (there is a small number of Interrupt ReQuest lines in your computer
3939
  that are used by the periphery to gain the CPU's attention -- often
3940
  a source of trouble if two devices are mistakenly configured to use
3941
  the same IRQ). Several programs depend on this, so everyone should
3942
  say Y here.
3943
 
3944
NFS filesystem support
3945
CONFIG_NFS_FS
3946
  If you are connected to some other (usually local) Unix computer
3947
  (using SLIP, PLIP, PPP or Ethernet) and want to mount files
3948
  residing on that computer (the NFS server) using the Network
3949
  File Sharing protocol, say Y. "Mounting files" means that the client
3950
  can access the files with usual UNIX commands as if they were
3951
  sitting on the client's hard disk. For this to work, the server must
3952
  run the programs nfsd and mountd (but does not need to have NFS
3953
  filesystem support enabled). NFS is explained in the Network
3954
  Administrator's Guide, available via FTP (user: anonymous) in
3955
  sunsite.unc.edu:/pub/Linux/docs/LDP, and on its man page: "man nfs".
3956
  There is also a NFS-FAQ in sunsite.unc.edu:/pub/Linux/docs/faqs
3957
  which presumes that you know the basics of NFS already. If you say Y
3958
  here, you should have said Y to TCP/IP networking also. This option
3959
  would enlarge your kernel by about 27 kB. This filesystem is also
3960
  available as a module ( = code which can be inserted in and removed
3961
  from the running kernel whenever you want). If you want to compile
3962
  it as a module, say M here and read Documentation/modules.txt.
3963
  If you configure a diskless machine which will mount its root
3964
  filesystem over NFS, you cannot compile this driver as a module.
3965
  If you don't know what all this is about, say N.
3966
 
3967
Root file system on NFS
3968
CONFIG_ROOT_NFS
3969
  If you want your Linux box to mount its whole root filesystem from
3970
  some other computer over the net via NFS (presumably because your
3971
  box doesn't have a hard disk), say Y. Read Documentation/nfsroot.txt
3972
  for details. Most people say N here.
3973
 
3974
BOOTP support
3975
CONFIG_RNFS_BOOTP
3976
  If you want your Linux box to mount its whole root filesystem from
3977
  some other computer over the net via NFS and you want the IP address
3978
  of your computer to be discovered automatically at boot time using
3979
  the BOOTP protocol (a special protocol designed for doing this job),
3980
  say Y here. In case the boot ROM of your network card was designed
3981
  for booting Linux and does BOOTP itself, providing all necessary
3982
  information on the kernel command line, you can say N here.  If
3983
  unsure, say Y. Note that in case you want to use BOOTP, a BOOTP
3984
  server must be operating on your network. Read
3985
  Documentation/nfsroot.txt for details.
3986
 
3987
RARP support
3988
CONFIG_RNFS_RARP
3989
  If you want your Linux box to mount its whole root filesystem from
3990
  some other computer over the net via NFS and you want the IP address
3991
  of your computer to be discovered automatically at boot time using
3992
  the RARP protocol (an older protocol which is being obsoleted by
3993
  BOOTP), say Y here. Note that in case you want to use RARP, a RARP
3994
  server must be operating on your network. Read
3995
  Documentation/nfsroot.txt for details.
3996
 
3997
ISO9660 cdrom filesystem support
3998
CONFIG_ISO9660_FS
3999
  This is the standard filesystem used on CDROMs. It was previously
4000
  known as "High Sierra Filesystem" and is called "hsfs" on other Unix
4001
  systems. The so-called Rock-Ridge extensions which allow for long
4002
  Unix filenames are also supported by this driver. If you have a
4003
  CDROM drive and want to do more with it than just listen to audio
4004
  CDs and watch its LEDs, say Y (and read the CDROM-HOWTO, available
4005
  via FTP (user: anonymous) from sunsite.unc.edu:
4006
  /pub/Linux/docs/HOWTO), thereby enlarging your kernel by about
4007
  27 kB; otherwise say N. If you want to compile this as a module
4008
  ( = code which can be inserted in and removed from the running
4009
  kernel whenever you want), say M here and read
4010
  Documentation/modules.txt.
4011
 
4012
OS/2 HPFS filesystem support (read only)
4013
CONFIG_HPFS_FS
4014
  OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
4015
  is the filesystem used for organizing files on OS/2 hard disk
4016
  partitions. Say Y if you want to be able to read files from an OS/2
4017
  HPFS partition of your hard drive. OS/2 floppies however are in
4018
  regular MSDOS format, so you don't need this option in order to be
4019
  able to read them. Read Documentation/filesystems/hpfs.txt. This
4020
  filesystem is also available as a module ( = code which can be
4021
  inserted in and removed from the running kernel whenever you
4022
  want). If you want to compile it as a module, say M here and read
4023
  Documentation/modules.txt. If unsure, say N.
4024
 
4025
System V and Coherent filesystem support
4026
CONFIG_SYSV_FS
4027
  SCO, Xenix and Coherent are commercial Unix systems for Intel
4028
  machines. Enabling this option would allow you to read and write to
4029
  and from their floppies and hard disk partitions. If you have a
4030
  floppy or hard disk partition like that, it is probable that they
4031
  contain binaries from those other Unix systems; in order to run
4032
  these binaries, you will want to install iBCS2 (iBCS2 [Intel Binary
4033
  Compatibility Standard] is a kernel module which lets you run SCO,
4034
  Xenix, Wyse, Unix Ware, Dell Unix and System V programs under Linux
4035
  and is often needed to run commercial software, most prominently
4036
  WordPerfect. It's in tsx-11.mit.edu:/pub/linux/BETA). If you only
4037
  intend to mount files from some other Unix over the network using
4038
  NFS, you don't need the System V filesystem support (but you need
4039
  NFS filesystem support obviously). Note that this option is
4040
  generally not needed for floppies, since a good portable way to
4041
  transport files and directories between unixes (and even other
4042
  operating systems) is given by the tar program ("man tar").  Note
4043
  also that this option has nothing whatsoever to do with the option
4044
  "System V IPC". Read about the System V filesystem in
4045
  Documentation/filesystems/sysv-fs.txt. This option will enlarge your
4046
  kernel by about 34 kB. If you want to compile this as a module ( =
4047
  code which can be inserted in and removed from the running kernel
4048
  whenever you want), say M here and read Documentation/modules.txt.
4049
  If you haven't heard about all of this before, it's safe to say N.
4050
 
4051
Kernel automounter support (experimental)
4052
CONFIG_AUTOFS_FS
4053
  The automounter is a tool to automatically mount remote filesystems
4054
  on demand.  This implementation is partially kernel-based to reduce
4055
  overhead in the already-mounted case; this is unlike the BSD
4056
  automounter (amd), which is only in user space.  To use the
4057
  automounter you also need the user-space tools from
4058
  ftp.kernel.org:/pub/linux/daemons/autofs.  If you are not a part of
4059
  a fairly large, distributed network, you probably do not need an
4060
  automounter, and can say N here.
4061
 
4062
BSD UFS filesystem support (read only)
4063
CONFIG_UFS_FS
4064
  BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD
4065
  and NeXTstep) use a filesystem called UFS. Some System V Unixes can
4066
  create and mount partitions and diskettes using this filesystem
4067
  as well. Enabling this option allows you to mount these partitions
4068
  and diskettes read-only. If you only intend to mount files from
4069
  some other Unix over the network using NFS, you don't need the
4070
  UFS filesystem support (but you need NFS filesystem support
4071
  obviously). Note that this option is generally not needed for
4072
  floppies, since a good portable way to transport files and
4073
  directories between unixes (and even other operating systems)
4074
  is given by the tar program ("man tar"). When accessing NeXTstep
4075
  files, you may need to convert them from the NeXT character set
4076
  to the Latin1 character set; use GNU recode for this purpose.
4077
  Say Y to build UFS support into your kernel. If you want to compile
4078
  this as a module ( = code which can be inserted in and removed from
4079
  the running kernel whenever you want), say M here and read
4080
  Documentation/modules.txt. If you haven't heard about all of this
4081
  before, it's safe to say N.
4082
 
4083
BSD disklabel (FreeBSD partition tables) support
4084
CONFIG_BSD_DISKLABEL
4085
  FreeBSD uses its own partition scheme on your PC. It requires only
4086
  one entry in the primary partition table of your disk and manages it
4087
  similarly to DOS extended partitions, putting in its first sector a
4088
  new partition table in disklabel format. Enabling this option allows
4089
  you to read these disklabels and further mount FreeBSD partitions on
4090
  your Linux box if you also have configured BSD ufs filesystem
4091
  support. If you don't know what all this is about, say N.
4092
 
4093
SMD disklabel (Sun partition tables) support
4094
CONFIG_SMD_DISKLABEL
4095
  Like most systems, SunOS uses its own partition table format,
4096
  incompatible with all others.  Enabling this option allows you to
4097
  read these partition tables and further mount SunOS disks on your
4098
  Linux box if you also have configured BSD ufs filesystem support.
4099
  This is mainly used to carry data from a SPARC under SunOS to your
4100
  Linux box via a removable medium like magneto-optical or ZIP drives.
4101
  If you don't know what all this is about, say N.
4102
 
4103
SMB filesystem support (to mount WfW shares etc...)
4104
CONFIG_SMB_FS
4105
  SMB (Server Message Buffer) is the protocol Windows for Workgroups
4106
  (WfW), Windows NT and Lan Manager use to talk to each other over an
4107
  Ethernet. Enabling this allows you to mount their filesystems and
4108
  access them just like any other unix directory. For details, read
4109
  Documentation/filesystems/smbfs.txt.  Note: if you just want your
4110
  box to act as an SMB *server* and make files and printing services
4111
  available to Windows clients (which need to have a TCP/IP stack),
4112
  you don't need to enable this filesystem support; you can use the
4113
  program samba (available via FTP (user: anonymous) in
4114
  sunsite.unc.edu:/pub/Linux/system/Network/samba) for that. General
4115
  information about how to connect Linux, Windows machines and Macs is
4116
  on the WWW at http://eats.com/linux_mac_win.html (to browse the WWW,
4117
  you need to have access to a machine on the Internet that has one of
4118
  the programs lynx, netscape or Mosaic).  If you want to compile the
4119
  SMB support as a module ( = code which can be inserted in and
4120
  removed from the running kernel whenever you want), say M here and
4121
  read Documentation/modules.txt. Most people say N, however.
4122
 
4123
SMB Win95 bug work-around
4124
CONFIG_SMB_WIN95
4125
  If you want to connect to a share exported by Windows 95, you should
4126
  say Y here. The Windows 95 server contains a bug that makes listing
4127
  directories unreliable. This option slows down the listing of
4128
  directories. This makes the Windows 95 server a bit more stable.
4129
 
4130
NCP filesystem support (to mount NetWare volumes)
4131
CONFIG_NCP_FS
4132
  NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
4133
  used by Novell NetWare clients to talk to file servers. It is to IPX
4134
  what NFS is to TCP/IP, if that helps. Saying Y here allows you to
4135
  mount NetWare file server volumes and to access them just like any
4136
  other Unix directory. For details, please read the file
4137
  Documentation/filesystems/ncpfs.txt in the kernel source and the
4138
  IPX-HOWTO on ftp://sunsite.unc.edu:/pub/Linux/docs/howto.
4139
  You do not have to say Y here if you want your Linux box to act as a
4140
  file *server* for Novell NetWare clients.
4141
  General information about how to connect Linux, Windows machines and
4142
  Macs is on the WWW at http://www.eats.com/linux_mac_win.html (to
4143
  browse the WWW, you need to have access to a machine on the Internet
4144
  that has a program like lynx or netscape).
4145
  If you want to compile this as a module ( = code which can be
4146
  inserted in and removed from the running kernel whenever you want),
4147
  say M here and read Documentation/modules.txt. The module will be
4148
  called ncpfs.o. Say N unless you are connected to a Novell network.
4149
 
4150
Packet signatures
4151
CONFIG_NCPFS_PACKET_SIGNING
4152
  NCP allows packets to be signed for stronger security. If you want
4153
  security, say Y. Normal users can leave it off. To be able to use
4154
  packet signing you must use ncpfs > 2.0.12.
4155
 
4156
Proprietary file locking
4157
CONFIG_NCPFS_IOCTL_LOCKING
4158
  Allows locking of records on remote volumes. Say N unless you have
4159
  special applications which are able to utilize this locking scheme.
4160
 
4161
Clear remove/delete inhibit when needed
4162
CONFIG_NCPFS_STRONG
4163
  Allows manipulation of files flagged as Delete or Rename Inhibit. To
4164
  use this feature you must mount volumes with the ncpmount parameter
4165
  "-s" (ncpfs-2.0.12 and newer). Say Y unless you are not mounting
4166
  volumes with -f 444.
4167
 
4168
Use NFS namespace when available
4169
CONFIG_NCPFS_NFS_NS
4170
  Allows you to utilize NFS namespace on NetWare servers. It brings
4171
  you case sensitive filenames. Say Y. You can disable it at
4172
  mount-time with the `-N nfs' parameter of ncpmount.
4173
 
4174
Use OS2/LONG namespace when available
4175
CONFIG_NCPFS_OS2_NS
4176
  Allows you to utilize OS2/LONG namespace on NetWare servers.
4177
  Filenames in this namespace are limited to 255 characters, they are
4178
  case insensitive, and case in names is preserved. Say Y. You can
4179
  disable it at mount time with the -N os2 parameter of ncpmount.
4180
 
4181
Allow mounting of volume subdirectories
4182
CONFIG_NCPFS_MOUNT_SUBDIR
4183
  Allows you to mount not only whole servers or whole volumes, but
4184
  also subdirectories from a volume. It can be used to reexport data
4185
  and so on. There is no reason to say N, so Y is recommended unless
4186
  you count every byte.
4187
  To utilize this feature you must use ncpfs-2.0.12 or newer.
4188
 
4189
Amiga FFS filesystem support (EXPERIMENTAL)
4190
CONFIG_AFFS_FS
4191
  The Fast File System (FFS) is the common filesystem used on
4192
  hard disks by Amiga (tm) Systems since AmigaOS Version 1.3 (34.20).
4193
  It's also possible to mount diskfiles used by
4194
  the Un*X Amiga Emulator by Bernd Schmidt
4195
  (http://www-users.informatik.rwth-aachen.de/~crux/uae.html).
4196
  If you want to do the latter, you will also need the loop device
4197
  support.   Say Y if you want to be able to read and write files from
4198
  and to an Amiga FFS partition of your hard drive.  Amiga floppies
4199
  however cannot be read with this driver due to an incompatibility of
4200
  the floppy controller used in an Amiga and the standard floppy
4201
  controller in PCs and workstations.  Read
4202
  Documentation/filesystems/affs.txt.  This filesystem is also
4203
  available as a module ( = code which can be inserted in and removed
4204
  from the running kernel whenever you want). If you want to compile
4205
  it as a module, say M here and read Documentation/modules.txt.
4206
  If unsure, say N.
4207
 
4208
ROM filesystem support
4209
CONFIG_ROMFS_FS
4210
  This is a very small read-only filesystem mainly intended for
4211
  initial ram disks of installation disk, but it could be used for
4212
  other read-only media as well. Read
4213
  Documentation/filesystems/romfs.txt for details. This filesystem is
4214
  also available as a module ( = code which can be inserted in and
4215
  removed from the running kernel whenever you want). The module is
4216
  called romfs.o. If you want to compile it as a module, say M here
4217
  and read Documentation/modules.txt.  If you don't know whether you
4218
  need it, then you don't need it: say N.
4219
 
4220
Standard/generic serial support
4221
CONFIG_SERIAL
4222
  This selects whether you want to include the driver for the standard
4223
  serial ports.  People who might say N here are those that are
4224
  setting up dedicated Ethernet WWW/FTP servers, or users that have
4225
  one of the various bus mice instead of a serial mouse.  (Note that
4226
  the Cyclades and Stallion multi serial port drivers do not need this
4227
  driver built in for them to work. They are completely independent of
4228
  each other.)  If you want to compile this driver as a module, say M
4229
  here and read Documentation/modules.txt.  [WARNING: Do not compile
4230
  this driver as a module if you are using non-standard serial ports,
4231
  since the configuration information will be lost when kerneld
4232
  automatically unloads the driver.  This limitation may be lifted in
4233
  the future.]  Most people will say Y or M here, so that they can use
4234
  serial mice, modems and similar devices connecting to the standard
4235
  serial ports.
4236
 
4237
Digiboard PC/Xx Support
4238
CONFIG_DIGI
4239
  This is a driver for the Digiboard PC/Xe, PC/Xi, and PC/Xeve cards
4240
  that give you many serial ports. You would need something like this
4241
  to connect more than two modems to your Linux box, for instance in
4242
  order to become a BBS. If you have a card like that, say Y here and
4243
  read the file Documentation/digiboard.txt.
4244
 
4245
SDL RISCom/8 card support
4246
CONFIG_RISCOM8
4247
  This is a driver for the SDL Communications RISCom/8 multiport card,
4248
  that give you many serial ports. You would need something like this
4249
  to connect more than two modems to your Linux box, for instance in
4250
  order to become a BBS. If you have a card like that, say Y here and
4251
  read the file Documentation/riscom8.txt. Also it's possible to say
4252
  M here and compile this driver as kernel loadable module.
4253
 
4254
Specialix IO8+ card support
4255
CONFIG_SPECIALIX
4256
  This is a driver for the Specialix IO8+ multiport card (both the
4257
  ISA and the PCI version), that gives you 8 serial ports. You would
4258
  need a card like this to connect more than two modems to your linux
4259
  box, for instance in order to become a BBS. If you have a card like
4260
  that, say Y here and read the file Documentation/specialix.txt. Also
4261
  it's possible to say M here and compile this driver as kernel
4262
  loadable module.
4263
 
4264
Specialix DTR/RTS pin is RTS
4265
CONFIG_SPECIALIX_RTSCTS
4266
  The Specialix card can only support either RTS or DTR. When this
4267
  option is off, the driver will use the pin as "DTR" when the tty is
4268
  in software handshake mode. When this option is on or hardware
4269
  handshake is on, it will always be RTS. Read the file
4270
  Documentation/specialix.txt for more information.
4271
 
4272
Cyclades async mux support
4273
CONFIG_CYCLADES
4274
  This is a driver for a card that gives you many serial ports. You
4275
  would need something like this to connect more than two modems to
4276
  your Linux box, for instance in order to become a BBS. If you want
4277
  to compile this as a module ( = code which can be inserted in and
4278
  removed from the running kernel whenever you want), say M here and
4279
  read Documentation/modules.txt. If you haven't heard about it, it's
4280
  safe to say N. (As of 1.3.9x kernels, this driver's minor numbers
4281
  start at 0 instead of 32.)
4282
 
4283
Stallion multiport serial support
4284
CONFIG_STALDRV
4285
  Stallion cards give you many serial ports. You would need something
4286
  like this to connect more than two modems to your Linux box, for
4287
  instance in order to become a BBS. If you say Y here, you will be
4288
  asked for your specific card model in the next questions. Make sure
4289
  to read drivers/char/README.stallion in this case. If you have never
4290
  heard about all this, it's safe to say N.
4291
 
4292
Stallion EasyIO or EC8/32 support
4293
CONFIG_STALLION n
4294
  If you have an EasyIO or EasyConnection 8/32 multiport Stallion
4295
  card, then this is for you; say Y. Make sure to read
4296
  drivers/char/README.stallion. If you want to compile this as a
4297
  module ( = code which can be inserted in and removed from the
4298
  running kernel whenever you want), say M here and read
4299
  Documentation/modules.txt.
4300
 
4301
Stallion EC8/64, ONboard, Brumby support
4302
CONFIG_ISTALLION
4303
  If you have an EasyConnection 8/64, ONboard, Brumby or Stallion
4304
  serial multiport card, say Y here. Make sure to read
4305
  drivers/char/README.stallion. To compile it as a module ( = code
4306
  which can be inserted in and removed from the running kernel
4307
  whenever you want), say M here and read Documentation/modules.txt.
4308
 
4309
Parallel printer support
4310
CONFIG_PRINTER
4311
  If you intend to attach a printer to the parallel port of your Linux
4312
  box (as opposed to using a serial printer; if the connector at the
4313
  printer has 9 or 25 holes ["female"], then it's serial), say Y. Also
4314
  read the Printing-HOWTO, available via FTP (user: anonymous) in
4315
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you want to compile this
4316
  as a module ( = code which can be inserted in and removed from the
4317
  running kernel whenever you want), say M here and read
4318
  Documentation/modules.txt. If you want to use both a parallel
4319
  printer and PLIP, there are two cases: 1) If the printer and the
4320
  PLIP cable are to use the same parallel port (presumably because you
4321
  have just one), it is best to compile both drivers as modules and
4322
  load and unload them as needed. 2) To use different parallel ports
4323
  for the printer and the PLIP cable, you can say Y to this printer
4324
  driver, specify the base address of the parallel port(s) to use for
4325
  the printer(s) with the "lp" kernel command line option. (See the
4326
  documentation of your boot loader (lilo or loadlin) about how to
4327
  pass options to the kernel at boot time. The lilo procedure is also
4328
  explained in the SCSI-HOWTO, available via FTP (user: anonymous) in
4329
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.) The standard base addresses
4330
  as well as the syntax of the "lp" command line option can be found
4331
  in drivers/char/lp.c. You can then say Y to the PLIP driver or,
4332
  preferably, M in which case Documentation/networking/net-modules.txt
4333
  tells you how to specify the port and IRQ to be used by PLIP at
4334
  module load time.
4335
 
4336
 
4337
Mouse Support (not serial mice)
4338
CONFIG_MOUSE
4339
  This is for machines with a bus mouse or a PS/2 mouse as opposed to
4340
  a serial mouse. Most people have a regular serial MouseSystem or
4341
  Microsoft mouse (made by Logitech) that plugs into a COM port
4342
  (rectangular with 9 or 25 pins). These people say N here. If you
4343
  have something else, read the Busmouse-HOWTO, available via FTP
4344
  (user: anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO and say Y
4345
  here. If you have a laptop, you either have to check the
4346
  documentation or experiment a bit to find out whether the trackball
4347
  is a serial mouse or not; it's best to say Y here for you. Note that
4348
  the answer to this question won't directly affect the kernel:
4349
  saying N will just cause this configure script to skip all the
4350
  questions about non-serial mice.  If unsure, say Y.
4351
 
4352
Logitech busmouse support
4353
CONFIG_BUSMOUSE
4354
  Logitech mouse connected to a proprietary interface card. It's
4355
  generally a round connector with 9 pins. Note that the newer mice
4356
  made by Logitech don't use the Logitech protocol anymore; for those,
4357
  you don't need this option. You want to read the Busmouse-HOWTO,
4358
  available via FTP (user: anonymous) in
4359
  sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you want to compile this
4360
  as a module ( = code which can be inserted in and removed from the
4361
  running kernel whenever you want), say M here and read
4362
  Documentation/modules.txt. If you are unsure, say N and read the
4363
  HOWTO nevertheless: it will tell you what you have.
4364
 
4365
PS/2 mouse (aka "auxiliary device") support
4366
CONFIG_PSMOUSE
4367
  The PS/2 mouse connects to a special mouse port that looks much like
4368
  the keyboard port (small circular connector with 6 pins). This way,
4369
  the mouse does not use any serial ports. This port can also be used
4370
  for other input devices like light pens, tablets, keypads. Compaq,
4371
  AST and IBM all use this as their mouse port on currently shipping
4372
  machines. The trackballs of some laptops are PS/2 mice also. In
4373
  particular, the C&T 82C710 mouse on TI Travelmates is a PS/2
4374
  mouse. Although PS/2 mice are not technically bus mice, they are
4375
  explained in detail in the Busmouse-HOWTO, available via FTP (user:
4376
  anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you want to
4377
  compile this as a module ( = code which can be inserted in and
4378
  removed from the running kernel whenever you want), say M here and
4379
  read Documentation/modules.txt. If you are unsure, say N and read
4380
  the HOWTO nevertheless: it will tell you what you have.
4381
 
4382
C&T 82C710 mouse port support (as on TI Travelmate)
4383
CONFIG_82C710_MOUSE
4384
  This is a certain kind of PS/2 mouse used on the TI Travelmate. If
4385
  you are unsure, try first to say N here and come back if the mouse
4386
  doesn't work. Read the Busmouse-HOWTO, available via FTP (user:
4387
  anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.
4388
 
4389
Microsoft busmouse support
4390
CONFIG_MS_BUSMOUSE
4391
  These animals (also called Inport mice) are connected to an
4392
  expansion board using a round connector with 9 pins. If this is what
4393
  you have, say Y and read the Busmouse-HOWTO, available via FTP
4394
  (user: anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you
4395
  want to compile this as a module ( = code which can be inserted in
4396
  and removed from the running kernel whenever you want), say M here
4397
  and read Documentation/modules.txt. If you are unsure, say N and
4398
  read the HOWTO nevertheless: it will tell you what you have. Also be
4399
  aware that several vendors talk about 'Microsoft busmouse' and
4400
  actually mean PS/2 busmouse -- so count the pins on the connector.
4401
 
4402
ATIXL busmouse support
4403
CONFIG_ATIXL_BUSMOUSE
4404
  This is a rare type of busmouse that is connected to the back of an
4405
  ATI video card. Note that most ATI mice are actually Microsoft
4406
  busmice. Read the Busmouse-HOWTO, available via FTP (user:
4407
  anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO.  If you want to
4408
  compile this as a module ( = code which can be inserted in and
4409
  removed from the running kernel whenever you want), say M here and
4410
  read Documentation/modules.txt. If you are unsure, say N and read
4411
  the HOWTO nevertheless: it will tell you what you have.
4412
 
4413
Support for user miscellaneous modules
4414
CONFIG_UMISC
4415
  This option forces generic miscellaneous minor device support in the
4416
  kernel, and allows later loading of user miscellaneous device
4417
  modules, such as drivers for optic pens and touchscreens. Unless you
4418
  need such specific modules, or are willing to write/test one, just
4419
  say N.
4420
 
4421
QIC-02 tape support
4422
CONFIG_QIC02_TAPE
4423
  If you have a non-SCSI tape drive like that, say Y.
4424
 
4425
Do you want runtime configuration for QIC-02
4426
CONFIG_QIC02_DYNCONF
4427
  You can either configure this driver once and for all by editing a
4428
  header file, in which case you should say N, or you can fetch a
4429
  program via anonymous FTP which is able to configure this driver
4430
  during runtime. If you want this, say Y.
4431
 
4432
Ftape (QIC-80/Travan) support
4433
CONFIG_FTAPE
4434
  If you have a tape drive that is connected to your floppy
4435
  controller, say Y here. Some tape drives (like the Iomega Ditto
4436
  3200) come with a high speed controller of its own.  These drives
4437
  (and their companion controller) is also supported. If you have a
4438
  special controller (such as the CMS FC-10, FC-20, Iomega Mach-II, or
4439
  Ditto Dash), you must configure it by editing the file
4440
  drivers/char/ftape/Makefile. If you want to use such a tape drive on
4441
  a PCI-bus based system, please read the file
4442
  drivers/char/ftape/README.PCI. This driver is also available as a
4443
  runtime loadable module ( = code which can be inserted in and
4444
  removed from the running kernel whenever you want). If you want to
4445
  compile it as a module, say M here and read
4446
  Documentation/modules.txt.
4447
 
4448
Zilog serial support
4449
CONFIG_SUN_ZS
4450
  This driver does not exist at this point, so you might as well
4451
  say N.
4452
 
4453
Advanced Power Management
4454
CONFIG_APM
4455
  APM is a BIOS specification for saving power using several different
4456
  techniques.  This is mostly useful for battery powered laptops with
4457
  APM compliant BIOSes.  Specifically, the time will be reset after a
4458
  USER RESUME operation, the /proc/apm device will provide battery
4459
  status information, and user-space programs will receive
4460
  notification of APM "events" (e.g., battery status change).  This
4461
  driver does not spin down disk drives (see hdparm(8) for that); and
4462
  it doesn't turn off VESA-compliant "green" monitors.  This driver
4463
  does not support the TI 4000M TravelMate and the ACER 486/DX4/75
4464
  because they don't have compliant BIOSes.  Many "green" desktop
4465
  machines also don't have compliant BIOSes, and this driver will
4466
  cause those machines to panic during the boot phase (typically,
4467
  these machines are using a data segment of 0040, which is reserved
4468
  for the Linux kernel). If you get random kernel OOPSes that don't
4469
  seem to be related to anything and you have a motherboard with APM
4470
  support, try disabling/enabling this option. Generally, if you don't
4471
  have a battery in your machine, there isn't much point in using this
4472
  driver.
4473
 
4474
Ignore USER SUSPEND
4475
CONFIG_APM_IGNORE_USER_SUSPEND
4476
  This option will ignore USER SUSPEND requests.  On machines with a
4477
  compliant APM BIOS, you want to say N.  However, on the NEC Versa M
4478
  series notebooks, it is necessary to say Y because of a BIOS bug.
4479
 
4480
Enable APM at boot time
4481
CONFIG_APM_DO_ENABLE
4482
  Enable APM features at boot time.  From page 36 of the APM BIOS
4483
  specification: "When disabled, the APM BIOS does not automatically
4484
  power manage devices, enter the Standby State, enter the Suspend
4485
  State, or take power saving steps in response to CPU Idle calls."
4486
  This driver will make CPU Idle calls when Linux is idle (unless this
4487
  feature is turned off -- see below).  This should always save
4488
  battery power, but more complicated APM features will be dependent
4489
  on your BIOS implementation.  You may need to turn this option off
4490
  if your computer hangs at boot time when using APM support, or if it
4491
  beeps continuously instead of suspending.  Turn this off if you have
4492
  a NEC UltraLite Versa 33/C or a Toshiba T400CDT.  This is off by
4493
  default since most machines do fine without this feature.
4494
 
4495
Do CPU IDLE calls
4496
CONFIG_APM_CPU_IDLE
4497
  Enable calls to APM CPU Idle/CPU Busy inside the kernel's idle loop.
4498
  On some machines, this can activate improved power savings, such as
4499
  a slowed CPU clock rate, when the machine is idle.  These idle calls
4500
  are made after the idle loop has run for some length of time (e.g.,
4501
  333 ms).  On some machines, this will cause a hang at boot time or
4502
  whenever the CPU becomes idle.  (On machines with more than one CPU,
4503
  this option does nothing.)
4504
 
4505
Enable console blanking using APM
4506
CONFIG_APM_DISPLAY_BLANK
4507
  Enable console blanking using the APM.  Some laptops can use this to
4508
  turn off the LCD backlight when the VC screen blanker blanks the
4509
  screen.  Note that this is only used by the VC screen blanker, and
4510
  won't turn off the backlight when using X11 (this also doesn't have
4511
  anything to do with your VESA-compliant power-saving monitor).
4512
  Further, this option doesn't work for all laptops -- it might not
4513
  turn off your backlight at all, or it might print a lot of errors to
4514
  the console, especially if you are using gpm.
4515
 
4516
Power off on shutdown
4517
CONFIG_APM_POWER_OFF
4518
  This option will power off the computer after the Linux kernel is
4519
  halted (e.g., with the halt(8) command).  As with the other APM
4520
  options, this option may not work reliably with some APM BIOS
4521
  implementations.
4522
 
4523
Ignore multiple suspend/standby events
4524
CONFIG_APM_IGNORE_MULTIPLE_SUSPEND
4525
  This option is necessary on the Thinkpad 560, but should work on all
4526
  other laptops. When the APM BIOS returns multiple suspend or standby
4527
  events while one is already being processed they will be ignored.
4528
  Without this the Thinkpad 560 has troubles with apmd, and pcmcia-cs.
4529
 
4530
Watchdog Timer Support
4531
CONFIG_WATCHDOG
4532
  If you enable this option and create a character special file
4533
  /dev/watchdog with major number 10 and minor number 130 using mknod
4534
  ("man mknod"), you will get a watchdog, i.e.: subsequently opening
4535
  the file and failing to write to it for longer than 1 minute will
4536
  result in rebooting the machine. This could be useful for a
4537
  networked machine that needs to come back online as fast as possible
4538
  after a lock-up. There's a watchdog implementation entirely in
4539
  software (which can sometimes fail to reboot the machine) and a
4540
  driver for hardware watchdog boards, which are more robust and can
4541
  also keep track of the temperature inside your computer. For
4542
  details, read Documentation/watchdog.txt in the kernel source. If
4543
  unsure, say N. This driver is also available as a module ( = code
4544
  which can be inserted in and removed from the running kernel
4545
  whenever you want). If you want to compile it as a module, say M
4546
  here and read Documentation/modules.txt.
4547
 
4548
Disable watchdog shutdown on close
4549
CONFIG_WATCHDOG_NOWAYOUT
4550
  The default watchdog behaviour is to stop the timer if the process
4551
  managing it closes the file /dev/watchdog. It's always remotely
4552
  possible that this process might get killed. If you enable this
4553
  option, the watchdog cannot be stopped once it has been started.
4554
 
4555
WDT Watchdog timer
4556
CONFIG_WDT
4557
  If you have a WDT500P or WDT501P watchdog board, say Y here,
4558
  otherwise N. It is not possible to probe for this board, which means
4559
  that you have to set the IO port and IRQ it uses in the kernel
4560
  source at the top of drivers/char/wdt.c. If you want to compile this
4561
  as a module ( = code which can be inserted in and removed from the
4562
  running kernel whenever you want), say M here and read
4563
  Documentation/modules.txt.
4564
 
4565
WDT501 features
4566
CONFIG_WDT_501
4567
  Saying Y here and creating a character special file /dev/temperature
4568
  with major number 10 and minor number 131 ("man mknod") will give
4569
  you a thermometer inside your computer: reading from
4570
  /dev/temperature yields one byte, the temperature in degrees
4571
  Fahrenheit. This works only if you have a WDT501P watchdog board
4572
  installed.
4573
 
4574
Fan Tachometer
4575
CONFIG_WDT_501_FAN
4576
  Enable the Fan Tachometer on the WDT501. Only do this if you have
4577
  a fan tachometer actually set up.
4578
 
4579
Software Watchdog
4580
CONFIG_SOFT_WATCHDOG
4581
  A software monitoring watchdog. This will fail to reboot your system
4582
  from some situations that the hardware watchdog will recover
4583
  from. Equally it's a lot cheaper to install. This driver is also
4584
  available as a module ( = code which can be inserted in and removed
4585
  from the running kernel whenever you want). If you want to compile
4586
  it as a module, say M here and read Documentation/modules.txt.
4587
 
4588
Berkshire Products PC Watchdog card
4589
CONFIG_PCWATCHDOG
4590
  This is the driver for the Berkshire Products PC Watchdog card.
4591
  This card simply watches your kernel to make sure it doesn't freeze,
4592
  and if it does, it resets your computer after a certain amount of
4593
  time.  This driver is like the WDT501 driver but for different
4594
  hardware. The PC watchdog cards can be ordered from
4595
  http://www.berkprod.com. Some example rc.local files are available
4596
  from ftp.bitgate.com. This driver is also available as a module ( =
4597
  code which can be inserted in and removed from the running kernel
4598
  whenever you want). If you want to compile it as a module, say M
4599
  here and read Documentation/modules.txt.  Most people will say N.
4600
 
4601
Enhanced Real Time Clock Support
4602
CONFIG_RTC
4603
  If you enable this option and create a character special file
4604
  /dev/rtc with major number 10 and minor number 135 using mknod ("man
4605
  mknod"), you will get access to the real time clock built into your
4606
  computer. Every PC has such a clock built in. It can be used to
4607
  generate signals from as low as 1Hz up to 8192Hz, and can also be
4608
  used as a 24 hour alarm.  It reports status information via the file
4609
  /proc/rtc and its behaviour is set by various ioctls on /dev/rtc.
4610
  People running SMP ( = multiprocessor) versions of Linux should
4611
  enable this option to read and set the RTC clock in a SMP compatible
4612
  fashion. If you think you have a use for such a device (such as
4613
  periodic data sampling), then say Y here, and go read the file
4614
  Documentation/rtc.txt for details.
4615
 
4616
Sound card support
4617
CONFIG_SOUND
4618
  If you have a Sound Card in your Computer, i.e. if it can say more
4619
  than an occasional beep, say Y. Be sure to have all the information
4620
  about your sound card and its configuration down (I/O port,
4621
  interrupt and DMA channel), because you will be asked for it. You
4622
  want to read the Sound-HOWTO, available via FTP (user: anonymous)
4623
  from sunsite.unc.edu:/pub/Linux/docs/HOWTO. There is also some
4624
  information in various README files in drivers/sound.  If you want
4625
  to compile this as a module ( = code which can be inserted in and
4626
  removed from the running kernel whenever you want), say M here and
4627
  read Documentation/modules.txt.
4628
  I'm told that even without a sound card, you can make your computer
4629
  say more than an occasional beep, by programming the PC speaker.
4630
  Kernel patches and programs to do that are at sunsite.unc.edu:
4631
  /pub/Linux/kernel/patches/console/pcsndrv-X.X.tar.gz,
4632
  to be extracted with "tar xzvf filename".
4633
 
4634
ProAudioSpectrum 16 support
4635
CONFIG_PAS
4636
  Answer Y only if you have a Pro Audio Spectrum 16, ProAudio Studio
4637
  16 or Logitech SoundMan 16.  Don't answer 'y' if you have some other
4638
  card made by Media Vision or Logitech since they are not PAS16
4639
  compatible.
4640
 
4641
SoundBlaster (SB, SBPro, SB16, clones) support
4642
CONFIG_SB
4643
  Answer "y" if you have an original SoundBlaster card made by
4644
  Creative Labs or a 100% hardware compatible clone (like the
4645
  Thunderboard or SM Games). If your card was in the list of supported
4646
  cards look at the card specific instructions in the
4647
  drivers/sound/Readme.cards file before answering this question. For
4648
  an unknown card you may answer Y if the card claims to be
4649
  SoundBlaster compatible.
4650
 
4651
Generic OPL2/OPL3 FM synthesizer support
4652
CONFIG_ADLIB
4653
  Answer Y if your card has a FM chip made by Yamaha (OPL2/OPL3/OPL4).
4654
  Answering Y is usually a safe and recommended choice, however some
4655
  cards may have software (TSR) FM emulation. Enabling FM support with
4656
  these cards may cause trouble (I don't currently know of any such
4657
  cards, however).
4658
 
4659
Gravis Ultrasound support
4660
CONFIG_GUS
4661
  Enable this option for any type of Gravis Ultrasound card, including
4662
  the GUS or GUS MAX.
4663
 
4664
MPU-401 support (NOT for SB16)
4665
CONFIG_MPU401
4666
  Be careful with this question. The MPU401 interface is supported by
4667
  all sound cards. However, some natively supported cards have their
4668
  own driver for MPU401. Enabling the MPU401 option with these cards
4669
  will cause a conflict. Also, enabling MPU401 on a system that
4670
  doesn't really have a MPU401 could cause some trouble. If your card
4671
  was in the list of supported cards, look at the card specific
4672
  instructions in the drivers/sound/Readme.cards file. It's safe to
4673
  answer Y if you have a true MPU401 MIDI interface card.
4674
 
4675
6850 UART Midi support
4676
CONFIG_UART6850
4677
  This option enables support for MIDI interfaces based on the 6850
4678
  UART chip. This interface is rarely found on sound cards.  It's safe
4679
  to answer N to this question.
4680
 
4681
PSS (ECHO-ADI2111) support
4682
CONFIG_PSS
4683
  Answer Y only if you have Orchid SW32, Cardinal DSP16 or some other
4684
  card based on the PSS chipset (AD1848 codec + ADSP-2115 DSP chip +
4685
  Echo ESC614 ASIC CHIP).
4686
 
4687
16 bit sampling option of GUS (_NOT_ GUS MAX)
4688
CONFIG_GUS16
4689
  Answer Y if you have installed the 16 bit sampling daughtercard on
4690
  your GUS.  Answer N if you have a GUS MAX, since enabling this
4691
  option disables GUS MAX support.
4692
 
4693
GUS MAX support
4694
CONFIG_GUSMAX
4695
  Answer Y only if you have a Gravis Ultrasound MAX.
4696
 
4697
Microsoft Sound System support
4698
CONFIG_MSS
4699
  Again think carefully before answering Y to this question.  It's
4700
  safe to answer Y if you have the original Windows Sound System card
4701
  made by Microsoft or Aztech SG 16 Pro (or NX16 Pro).  Also you may
4702
  answer Y in case your card is NOT among these:
4703
     ATI Stereo F/X, AdLib, Audio Excell DSP16, Cardinal DSP16,
4704
     Ensoniq SoundScape (and compatibles made by Reveal and Spea),
4705
     Gravis Ultrasound, Gravis Ultrasound ACE, Gravis Ultrasound Max,
4706
     Gravis Ultrasound with 16 bit option, Logitech Sound Man 16,
4707
     Logitech SoundMan Games, Logitech SoundMan Wave, MAD16 Pro (OPTi
4708
     82C929), Media Vision Jazz16, MediaTriX AudioTriX Pro, Microsoft
4709
     Windows Sound System (MSS/WSS), Mozart (OAK OTI-601), Orchid
4710
     SW32, Personal Sound System (PSS), Pro Audio Spectrum 16, Pro
4711
     Audio Studio 16, Pro Sonic 16, Roland MPU-401 MIDI interface,
4712
     Sound Blaster 1.0, Sound Blaster 16, Sound Blaster 16ASP, Sound
4713
     Blaster 2.0, Sound Blaster AWE32, Sound Blaster Pro, TI TM4000M
4714
     notebook, ThunderBoard, Turtle Beach Tropez, Yamaha FM
4715
     synthesizers (OPL2, OPL3 and OPL4), 6850 UART MIDI Interface.
4716
  For cards having native support in VoxWare, consult the card
4717
  specific instructions in drivers/sound/Readme.cards. Some drivers
4718
  have their own MSS support and enabling this option will cause a
4719
  conflict.
4720
 
4721
Ensoniq Soundscape support
4722
CONFIG_SSCAPE
4723
  Answer Y if you have a sound card based on the Ensoniq SoundScape
4724
  chipset. Such cards are being manufactured at least by Ensoniq, Spea
4725
  and Reveal (Reveal makes also other cards).
4726
 
4727
MediaTriX AudioTriX Pro support
4728
CONFIG_TRIX
4729
  Answer Y if you have the AudioTriX Pro sound card manufactured
4730
  by MediaTrix.
4731
 
4732
Support for MAD16 and/or Mozart based cards
4733
CONFIG_MAD16
4734
  Answer Y if your card has a Mozart (OAK OTI-601) or MAD16
4735
  (OPTi 82C928 or 82C929) audio interface chip. These chips are
4736
  currently quite common so it's possible that many no-name cards
4737
  have one of them. In addition the MAD16 chip is used in some
4738
  cards made by known manufacturers such as Turtle Beach (Tropez),
4739
  Reveal (some models) and Diamond (latest ones).
4740
 
4741
Support for Crystal CS4232 based (PnP) cards
4742
CONFIG_CS4232
4743
  Enable this if you have a card based on the Crystal CS4232 chip set.
4744
 
4745
Support for Turtle Beach Wave Front (Maui, Tropez) synthesizers
4746
CONFIG_MAUI
4747
  Enable this option if you have a Turtle Beach Wave Front, Maui, or
4748
  Tropez sound card.
4749
 
4750
/dev/dsp and /dev/audio support
4751
CONFIG_AUDIO
4752
  Answering N disables /dev/dsp and /dev/audio, the A/D and D/A
4753
  converter devices.  Answer N only if you know you will not need
4754
  the option.  They are usually required.  Answer Y.
4755
 
4756
MIDI interface support
4757
CONFIG_MIDI
4758
  Answering N disables /dev/midixx devices and access to any MIDI
4759
  ports using /dev/sequencer and /dev/music. This option also affects
4760
  any MPU401 and/or General MIDI compatible devices.  Answer Y.
4761
 
4762
FM synthesizer (YM3812/OPL-3) support
4763
CONFIG_YM3812
4764
  Answer Y here, unless you know you will not need the option.
4765
 
4766
Sun Audio support
4767
CONFIG_SUN_AUDIO
4768
  This is support for the sound cards on Sun workstations. The code
4769
  does not exist yet, so you might as well say N here.
4770
 
4771
Kernel profiling support
4772
CONFIG_PROFILE
4773
  This is for kernel hackers who want to know how much time the kernel
4774
  spends in the various procedures. The information is stored in
4775
  /proc/profile (enable the /proc filesystem!) and in order to read
4776
  it, you need the readprofile package from sunsite.unc.edu. Its
4777
  manpage gives information regarding the format of profiling data. To
4778
  become a kernel hacker, you can start with the Kernel Hacker's
4779
  Guide, available via FTP (user: anonymous) from
4780
  sunsite.unc.edu:/pub/Linux/docs/LDP. Mere mortals say N.
4781
 
4782
Profile shift count
4783
CONFIG_PROFILE_SHIFT
4784
  This is used to adjust the granularity with which the addresses of
4785
  executed instructions get recorded in /proc/profile. But since you
4786
  enabled "Kernel profiling support", you must be a kernel hacker and
4787
  hence you know what this is about :-)
4788
 
4789
ISDN subsystem
4790
CONFIG_ISDN
4791
  ISDN ("Integrated Services Digital Networks", called RNIS in
4792
  France) is a special type of fully digital telephone line; it's
4793
  mostly used to connect to your Internet service provider (with SLIP
4794
  or PPP). The main advantage is that the speed is higher than
4795
  ordinary modem/telephone connections. It only works if your computer
4796
  is equipped with an ISDN card and both you and your service provider
4797
  purchased an ISDN line from your phone company.  For details, read
4798
  http://alumni.caltech.edu/~dank/isdn/ on the WWW. (To browse the
4799
  WWW, you need to have access to a machine on the Internet that has
4800
  one of the programs lynx, netscape or Mosaic.)  This driver allows
4801
  you to use an ISDN-card for networking connections and as dialin/out
4802
  device. The isdn-tty's have a built in AT-compatible modem
4803
  emulator. Network devices support autodial, channel-bundling,
4804
  callback and caller-authentication without having a daemon
4805
  running. A reduced T.70 protocol is supported with tty's suitable
4806
  for German BTX. On D-Channel, the protocols EDSS1 and 1TR6 are
4807
  supported. See Documentation/isdn/README for more information.
4808
 
4809
Support synchronous PPP
4810
CONFIG_ISDN_PPP
4811
  This enables synchronous PPP via ISDN. This protocol is used by
4812
  Cisco or Sun for example. So you want say Y here if the other end of
4813
  your ISDN connection supports it. You will need a special version of
4814
  pppd (called ipppd) for using this feature. See
4815
  Documentation/isdn/README.syncppp and Documentation/isdn/syncPPP.FAQ
4816
  for more information.
4817
 
4818
Support generic MP (RFC 1717)
4819
CONFIG_ISDN_MPP
4820
  With synchronous PPP enabled, it is possible to increase throughput
4821
  by bundling several ISDN-connections, using this protocol.
4822
  See Documentation/isdn/README.syncppp for more information.
4823
 
4824
Use VJ-compression with synchronous PPP
4825
CONFIG_ISDN_PPP_VJ
4826
  This enables Van Jacobson header compression for synchronous PPP.
4827
 
4828
Support audio via ISDN
4829
CONFIG_ISDN_AUDIO
4830
  With this option enabled, the modem-emulator supports a subset
4831
  of the EIA Class 8 Voice commands. Using a getty with voice-support
4832
  (mgetty+sendfax by gert@greenie.muc.de with an extension, available
4833
  with the ISDN utility package for example), you will be able
4834
  to use your Linux box as an ISDN-answering machine. Of course, this
4835
  must be supported by the lowlevel driver also. Currently HiSax
4836
  driver is the only voice-supporting drivers. See
4837
  Documentation/isdn/README.audio for more information.
4838
 
4839
ICN 2B and 4B support
4840
CONFIG_ISDN_DRV_ICN
4841
  This enables support for two kinds of ISDN-cards made by a German
4842
  company called ICN. 2B is the standard version for a single ISDN
4843
  line with two B-channels, 4B supports two ISDN lines. For running
4844
  this card, additional firmware is necessary, which has to be
4845
  downloaded into the card using a utility which is distributed
4846
  separately.  See Documentation/isdn/README and README.icn for more
4847
  information.
4848
 
4849
HiSax SiemensChipSet driver support
4850
CONFIG_ISDN_DRV_HISAX
4851
  This driver replaces the old Teles driver. It supports the Siemens
4852
  chipset in a more general way. This chipset is used on various
4853
  ISDN-cards (like AVM A1, Elsa ISDN cards, Teles S0-16.0,
4854
  Teles S0-16.3, Teles S0-8, Teles/Creatix PnP, ITK micro ix1 and
4855
  many compatibles). It supports other chipsets too.
4856
  See Documentation/isdn/README.HiSax for further informations on
4857
  using this driver.
4858
 
4859
HiSax Support for EURO/DSS1
4860
CONFIG_HISAX_EURO
4861
  Enable this if you have a EURO ISDN line.
4862
 
4863
Support for german chargeinfo
4864
CONFIG_DE_AOC
4865
  If you have german AOC, you can enable this to get the charginfo.
4866
 
4867
Disable sending complete
4868
CONFIG_HISAX_NO_SENDCOMPLETE
4869
  If you have trouble with some ugly exchanges or you live in
4870
  Australia select this option.
4871
 
4872
Disable sending low layer compatibility
4873
CONFIG_HISAX_NO_LLC
4874
  If you have trouble with some ugly exchanges try to select this
4875
  option.
4876
 
4877
HiSax Support for german 1TR6
4878
CONFIG_HISAX_1TR6
4879
  Enable this if you have a old german 1TR6 line.
4880
  Note: Many older local switches are using 1TR6 on internal S0.
4881
 
4882
HiSax Support for Teles 16.0/8.0
4883
CONFIG_HISAX_16_0
4884
  This enables HiSax support for the Teles ISDN-cards S0-16.0,
4885
  S0-8 and many compatibles.
4886
  See Documentation/isdn/README.HiSax on how to configure it using the
4887
  different cards, a different D-channel protocol, or non-standard
4888
  IRQ/port/shmem settings.
4889
 
4890
HiSax Support for Teles 16.3 or PNP or PCMCIA
4891
CONFIG_HISAX_16_3
4892
  This enables HiSax support for the Teles ISDN-cards S0-16.3
4893
  the Teles/Creatix PnP and the Teles PCMCIA.
4894
  See Documentation/isdn/README.HiSax on how to configure it using the
4895
  different cards, a different D-channel protocol, or non-standard
4896
  IRQ/port settings.
4897
 
4898
HiSax Support for Teles 16.3c
4899
CONFIG_HISAX_TELES3C
4900
  This enables HiSax support for the Teles 16.3c PnP.
4901
  See Documentation/isdn/README.HiSax on how to configure it.
4902
 
4903
HiSax Support for Teles PCI
4904
CONFIG_HISAX_TELESPCI
4905
  This enables HiSax support for the Teles PCI.
4906
  See Documentation/isdn/README.HiSax on how to configure it.
4907
 
4908
HiSax Support for Teles S0Box
4909
CONFIG_HISAX_S0BOX
4910
  This enables HiSax support for the Teles/Creatix parallel port
4911
  S0BOX.  See Documentation/isdn/README.HiSax on how to configure it.
4912
 
4913
HiSax Support for AVM A1 (Fritz)
4914
CONFIG_HISAX_AVM_A1
4915
  This enables HiSax support for the AVM A1 (aka "Fritz!").
4916
  See Documentation/isdn/README.HiSax on how to configure it using the
4917
  different cards, a different D-channel protocol, or non-standard
4918
  IRQ/port settings.
4919
 
4920
HiSax Support for AVM PnP/PCI (Fritz!PNP/PCI)
4921
CONFIG_HISAX_FRITZPCI
4922
  This enables HiSax support for the AVM "Fritz!PnP" and "Fritz!PCI".
4923
  See Documentation/isdn/README.HiSax on how to configure it.
4924
 
4925
HiSax Support for AVM A1 PCMCIA (Fritz)
4926
CONFIG_HISAX_AVM_A1_PCMCIA
4927
  This enables HiSax support for the AVM A1 "Fritz!PCMCIA").
4928
  See Documentation/isdn/README.HiSax on how to configure it.
4929
 
4930
HiSax Support for Elsa ISA cards
4931
CONFIG_HISAX_ELSA
4932
  This enables HiSax support for all Elsa cards.
4933
  See Documentation/isdn/README.HiSax on how to configure it using the
4934
  different cards, a different D-channel protocol, or non-standard
4935
  IRQ/port settings.
4936
 
4937
 
4938
HiSax Support for ITK ix1-micro Revision 2
4939
CONFIG_HISAX_IX1MICROR2
4940
  This enables HiSax support for the ITK ix1-micro Revision 2 card.
4941
  See Documentation/isdn/README.HiSax on how to configure it.
4942
 
4943
HiSax Support for Eicon.Diehl Diva cards
4944
CONFIG_HISAX_DIEHLDIVA
4945
  This enables HiSax support for all none Pro versions of
4946
  Eicon.Diehl's Diva series passiv cards.
4947
  See Documentation/isdn/README.HiSax on how to configure it.
4948
 
4949
HiSax Support for ASUSCOM cards
4950
CONFIG_HISAX_ASUSCOM
4951
  This enables HiSax support for all passiv AsusCom and AsusComs OEM cards,
4952
  e.g PCBIT-DP, Dynalink and much more.
4953
  See Documentation/isdn/README.HiSax on how to configure it.
4954
 
4955
HiSax Support for TELEINT cards
4956
CONFIG_HISAX_TELEINT
4957
  This enables HiSax support for TeleInts semi-activ card and for
4958
  other HFC-2BS0 based cards.
4959
  See Documentation/isdn/README.HiSax on how to configure it.
4960
 
4961
HiSax Support for Sedlbauer cards
4962
CONFIG_HISAX_SEDLBAUER
4963
  This enables HiSax support for all Sedlbauer passiv cards such as
4964
  Sedlbauer Speed Card (Speed Win, Teledat 100), Speed Star
4965
  and Speed Star2 (PCMCIA), ISDN-Controller PC/104, Speed PCI and
4966
  Speed Fax+.
4967
 
4968
  See Documentation/isdn/README.HiSax on how to configure it.
4969
 
4970
HiSax Support for USR Sportster internal TA
4971
CONFIG_HISAX_SPORTSTER
4972
  This enables HiSax support for the USR (3Com) Sportster internal TA
4973
  passiv card.
4974
  See Documentation/isdn/README.HiSax on how to configure it.
4975
 
4976
HiSax Support for MIC card
4977
CONFIG_HISAX_MIC
4978
  This enables HiSax support for the MIC passiv card.
4979
  See Documentation/isdn/README.HiSax on how to configure it.
4980
 
4981
HiSax Support for NETjet card
4982
CONFIG_HISAX_NETJET
4983
  This enables HiSax support for the NetJet PCI and maybe for other
4984
  Tiger300 based passiv cards.
4985
  See Documentation/isdn/README.HiSax on how to configure it.
4986
 
4987
HiSax Support for Niccy PnP/PCI card
4988
CONFIG_HISAX_NICCY
4989
  This enables HiSax support for Dr. Neuhaus (Sagem) Niccy series
4990
  passiv cards.
4991
  See Documentation/isdn/README.HiSax on how to configure it.
4992
 
4993
PCBIT-D support
4994
CONFIG_ISDN_DRV_PCBIT
4995
  This enables support for the PCBIT ISDN-cards. This card is
4996
  manufactured in Portugal by Octal. For running this card, additional
4997
  firmware is necessary, which has to be downloaded into the card
4998
  using a utility which is distributed separately.
4999
  See Documentation/isdn/README and Documentation/isdn/README.pcbit
5000
  for more information.
5001
 
5002
Spellcaster support (EXPERIMENTAL)
5003
CONFIG_ISDN_DRV_SC
5004
  This enables support for the Spellcaster BRI boards. This driver
5005
  currently builds in a modularized version only.
5006
  See Documentation/isdn/README.sc and http://www.spellcast.com
5007
  for more information.
5008
 
5009
AVM-B1 with CAPI2.0 support
5010
CONFIG_ISDN_DRV_AVMB1
5011
  This enables support for the AVM B1 card and also adds a CAPI2.0
5012
  interface for this card. For running this card, additional firmware
5013
  is necessary, which has to be downloaded into the card using a
5014
  utility which is distributed separately.
5015
  See Documentation/isdn/README.avmb1 for more information.
5016
 
5017
Support for AP1000 multicomputer
5018
CONFIG_AP1000
5019
  This enables support for a SPARC based parallel multi-computer
5020
  called an AP1000+. For details on our efforts to port Linux to this
5021
  machine see http://cap.anu.edu.au/cap/projects/linux or mail to
5022
  hackers@cafe.anu.edu.au
5023
 
5024
SPARC ESP SCSI support
5025
CONFIG_SCSI_SUNESP
5026
  This is the driver for the Sun ESP SCSI host adapter. The ESP
5027
  chipset is present in most SPARC-based computers.
5028
 
5029
SPARC /dev/openprom compatibility driver
5030
CONFIG_SUN_OPENPROMIO
5031
  This driver provides user programs with an interface to the SPARC
5032
  PROM device tree. The driver implements a SunOS-compatible
5033
  interface and a NetBSD-compatible interface. If you want to
5034
  compile this as a module ( = code which can be inserted in and
5035
  removed from the running kernel whenever you want), say M and read
5036
  Documentation/modules.txt. If unsure, say Y.
5037
 
5038
Handle buggy SMP BIOSes with bad MTRR setup
5039
CONFIG_MTRR
5040
  Some BIOSes for MP1.1/MP1.4 SMP machines fail to set the MTRR
5041
  registers in the chips up correctly as the specification and Intel
5042
  rules require. If you have a PPro or later SMP and one or more CPU's
5043
  report a value of about 2-3 bogomips enable this.
5044
 
5045
Nemory configuration
5046
CONFIG_MEM_STD
5047
  There are three memory configurations available. The standard
5048
  configuration allows use of just under 1GB of RAM with 3GB of
5049
  virtual space per process. The enterprise configuration allows
5050
  2Gigabytes of physical memory but limits the per process address
5051
  space to 2Gigabytes. The custom option allows you to specify the
5052
  split subject to kernel constraints. If you don't know how it works
5053
  don't pick it.
5054
 
5055
# need an empty line after last entry, for sed script in Configure.
5056
 
5057
#
5058
# This is used by ispell.el:
5059
#
5060
# LocalWords:  CONFIG coprocessor DX Pentium SX lilo loadlin HOWTO ftp sunsite
5061
# LocalWords:  unc edu docs emu README kB BLK DEV FD Thinkpad fd MFM RLL IDE gz
5062
# LocalWords:  cdrom diskless netboot nfs xzvf ATAPI MB ide
5063
# LocalWords:  HD CDROMs IDECD NEC MITSUMI filesystem XT XD PCI bios
5064
# LocalWords:  ISA EISA Microchannel VESA BIOSes IPC SYSVIPC ipc Ctrl dmesg hlt
5065
# LocalWords:  BINFMT Linkable http ac uk jo html GCC SPARC AVANTI CABRIOLET EB
5066
# LocalWords:  netscape gcc LD CC toplevel MODVERSIONS insmod rmmod modprobe IP
5067
# LocalWords:  genksyms INET loopback gatewaying Ethernet internet PPP ARP Arp
5068
# LocalWords:  howto multicasting MULTICAST MBONE firewalling ipfw ACCT resp ip
5069
# LocalWords:  proc acct IPIP encapsulator decapsulator klogd PCTCP RARP EXT PS
5070
# LocalWords:  telneting subnetted NAGLE rlogin NOSR ttyS TGA techinfo mbone nl
5071
# LocalWords:  Mb SKB IPX Novell NetWare dosemu AppleTalk DDP ATALK tapedrive
5072
# LocalWords:  SD CHR scsi thingy SG CD LUNs LUN jukebox Adaptec BusLogic EATA
5073
# LocalWords:  buslogic DMA DPT ATT eata dma PIO UltraStor fdomain umsdos ext
5074
# LocalWords:  QLOGIC qlogic TMC seagate Trantor ultrastor FASST wd NETDEVICES
5075
# LocalWords:  unix BBS linux nullmodem CSLIP PLIP Kirch's LDP CSlip SL SCC IRQ
5076
# LocalWords:  Turbo Laplink plip NCSA port's ReQuest IRQs EQL SMC AMD PCnet NE
5077
# LocalWords:  COM ELPLUS Com EtherLinkIII VLB Arcnet arcnet Cabletron DEPCA DE
5078
# LocalWords:  depca EtherWorks EWRK ewrk SEEQ EtherExpressPro EEXPRESS NI xxx
5079
# LocalWords:  EtherExpress WaveLAN wavelan PCLAN HPLAN VG SK Ansel Xen de ZNET
5080
# LocalWords:  PCMCIA cb stanford pcmcia LAN TEC RealTek ATP atp DLINK NetTools
5081
# LocalWords:  TR Sony CDU caddyless cdu Mitsumi MCD cd mcd XA MultiSession CDA
5082
# LocalWords:  Matsushita Panasonic SBPCD Soundblaster Longshine sbpcd Aztech
5083
# LocalWords:  Okano Wearnes AZTCD CDD SE aztcd sonycd Goldstar GSCD Philips fs
5084
# LocalWords:  LMS OPTCD Sanyo SJCD minix faqs xiafs XIA msdos mtools
5085
# LocalWords:  std softlinks umssync NetworkFileSharing nfsd mountd CDs HPFS TI
5086
# LocalWords:  hpfs SYSV SCO Intel iBCS Wyse WordPerfect tsx mit unixes sysv NR
5087
# LocalWords:  SMB WfW Cyclades async mux Logitech busmouse MouseSystem aka AST
5088
# LocalWords:  PSMOUSE Compaq trackballs Travelmate Inport ATIXL ATI busmice ld
5089
# LocalWords:  gpm config QIC DYNCONF FTAPE Stor Ftape ftape pcsndrv manpage NT
5090
# LocalWords:  readprofile diskdrives org com masq EtherTalk tcp netrom sunacm
5091
# LocalWords:  misc AIC aic pio nullmodems scc Portmaster eql GIS PhotoCDs MCDX
5092
# LocalWords:  mcdx gscd optcd sjcd ISP hdparm Workgroups Lan samba
5093
# LocalWords:  filesystems smbfs ATA ppp PCTech RZ www powerquest txt CMD ESDI
5094
# LocalWords:  chipset FB multicast MROUTE ifconfig IBMTR multiport
5095
# LocalWords:  Multisession STALDRV EasyIO EC EasyConnection ISTALLION ONboard
5096
# LocalWords:  Brumby pci TNC cis ohio faq usenet NETLINK dev hydra ca Tyne mem
5097
# LocalWords:  carleton Deskstation DECstation SUNFD JENSEN Noname XXXM SLiRP
5098
# LocalWords:  pppd Zilog ZS SRM bootloader ez mainmenu rarp ipfwadm
5099
# LocalWords:  RTNETLINK mknod xos MTU lwared Macs mac netatalk macs cs Wolff
5100
# LocalWords:  dartmouth flowerpt MultiMaster FlashPoint tudelft etherexpress
5101
# LocalWords:  ICL EtherTeam ETH IDESCSI TXC SmartRAID SmartCache httpd sjc dlp
5102
# LocalWords:  thesphere TwoServers BOOTP DHCP ncpfs BPQETHER BPQ chipsets MG
5103
# LocalWords:  bsd comp SPARCstation le SunOS ie Gracilis PackeTwin PT pt LU FX
5104
# LocalWords:  FX TEAC SoundBlaster CR CreativeLabs LCS mS ramdisk IDETAPE cmd
5105
# LocalWords:  Vertos Genoa Funai hsfs NCP NetWare tgz APM apm ioctls UltraLite
5106
# LocalWords:  TravelMate CDT LCD backlight VC RPC Mips DECStation AXP barlow
5107
# LocalWords:  PMAX MILO Alphas Multia Tseng linuxelf endian mipsel mips drv HT
5108
# LocalWords:  KERNELD kerneld callouts AdvanSys advansys diskquotas Admin WDT
5109
# LocalWords:  wdt hdb hdc bugfix SiS vlb Acculogic CSA DTC dtc Holtek ht QDI
5110
# LocalWords:  QD qd UMC umc ALI ali lena fnet fr homepage azstarnet axplinux
5111
# LocalWords:  Avanti XL AlphaStations Jensen DECpc AXPpci UDB Cabriolet MCA RC
5112
# LocalWords:  AlphaPC uwaterloo cpbeaure mca AOUT OUTput PPro sipx gwdg lo nwe
5113
# LocalWords:  Keepalive linefill RELCOM keepalive analogue CDR conf CDI INIT
5114
# LocalWords:  OPTi isp irq noisp VFAT vfat NTFS losetup dmsdosfs dosfs ISDN MP
5115
# LocalWords:  NOWAYOUT behaviour dialin isdn callback BTX Teles ICN EDSS Cisco
5116
# LocalWords:  ipppd syncppp RFC MPP VJ downloaded icn NICCY Creatix shmem ufr
5117
# LocalWords:  ibp md ARCnet ether encap NDIS arcether ODI Amigas AmiTCP NetBSD
5118
# LocalWords:  initrd tue util DES funet des OnNet BIOSP smc Travan Iomega CMS
5119
# LocalWords:  FC DC dc PPA ppa RNFS FMV Fujitsu ARPD arpd loran layes
5120
# LocalWords:  FRAD indiana framerelay DLCI DCLIs Sangoma SDLA mrouted sync sec
5121
# LocalWords:  Starmode Metricom MosquitoNet mosquitonet kbit nfsroot Digiboard
5122
# LocalWords:  DIGI Xe Xeve digiboard UMISC touchscreens mtu HBAs MEX
5123
# LocalWords:  Shifflett netcom js jshiffle WIC DECchip ELCP EtherPower dst RTC
5124
# LocalWords:  rtc SMP lp Digi Intl RightSwitch DGRS dgrs AFFS Amiga UFS SDL AP
5125
# LocalWords:  Solaris RISCom riscom syncPPP PCBIT pcbit sparc anu au artoo ufs
5126
# LocalWords:  hitchcock Crynwr cnam pktdrvr NCSA's CyDROM CyCDROM FreeBSD NeXT
5127
# LocalWords:  NeXTstep disklabel disklabels SMD FFS tm AmigaOS diskfiles Un IQ
5128
# LocalWords:  Bernd informatik rwth aachen uae affs multihosting bytecode java
5129
# LocalWords:  applets applet JDK ncsa cabi SNI Alphatronix readme LANs scarab
5130
# LocalWords:  winsock RNIS caltech OSPF honour Honouring Mbit Localtalk DEFRAG
5131
# LocalWords:  download Packetwin Baycom baycom interwork ascii JNT
5132
# LocalWords:  Camtec proxying indyramp defragment defragmented UDP FAS FASXX
5133
# LocalWords:  FastSCSI SIO FDC qlogicfas QLogic qlogicisp setbaycom ife ee LJ
5134
# LocalWords:  ethz ch Travelmates ProAudioSpectrum ProAudio SoundMan SB SBPro
5135
# LocalWords:  Thunderboard SM OPL FM ADLIB TSR Gravis MPU PSS ADI SW DSP codec
5136
# LocalWords:  ADSP ESC ASIC daughtercard GUSMAX MSS NX AdLib Excell Ensoniq YM
5137
# LocalWords:  SoundScape Spea MediaTriX AudioTriX WSS OTI ThunderBoard VoxWare
5138
# LocalWords:  Soundscape SSCAPE TRIX MediaTrix PnP Maui dsp midixx EIA getty
5139
# LocalWords:  mgetty sendfax gert greenie muc lowlevel Lasermate LanManager io
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