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USS Lite version 3.5.4 release notes
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------------------------------------
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Most up to date information about this driver is available from
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http://www.4front-tech.com/ossfree.
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Please read the SOUND-HOWTO (available from sunsite.unc.edu and other Linux FTP
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sites). It gives instructions about using sound with Linux. It's bit out of
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date but still very useful. Information about bug fixes and such things
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is available from the web page (see below).
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New Programmer's Guide is currently under work (June/July 96). Please
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check http://www.4front-tech.com/pguide for more info.
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====================================================
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- THIS VERSION ____REQUIRES____ Linux 1.3.70 OR LATER.
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====================================================
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It's very likely that this driver version is incompatible with
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Linux versions later than 2.0.x.
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Packages "snd-util-3.5.tar.gz" and "snd-data-0.1.tar.Z"
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contain useful utilities to be used with this driver.
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See http://www.4front-tech.com/ossfree/getting.html for
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download instructions.
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If you are looking for the installation instructions, please
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look at Readme.linux.
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Supported soundcards
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--------------------
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See Readme.cards.
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Please check http://www.4front-tech.com/ossfree if you don't find
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your soundcard there.
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Contributors
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------------
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This driver contains code by several contributors. In addition several other
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persons have given useful suggestions. The following is a list of major
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contributors. (I could have forgotten some names.)
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Craig Metz 1/2 of the PAS16 Mixer and PCM support
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Rob Hooft Volume computation algorithm for the FM synth.
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Mika Liljeberg uLaw encoding and decoding routines
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Jeff Tranter Linux SOUND HOWTO document
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Greg Lee Volume computation algorithm for the GUS and
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lot's of valuable suggestions.
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Andy Warner ISC port
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Jim Lowe,
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Amancio Hasty Jr FreeBSD/NetBSD port
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Anders Baekgaard Bug hunting and valuable suggestions.
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Joerg Schubert SB16 DSP support (initial version).
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Andrew Robinson Improvements to the GUS driver
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Megens SA MIDI recording for SB and SB Pro (initial version).
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Mikael Nordqvist Linear volume support for GUS and
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nonblocking /dev/sequencer.
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Ian Hartas SVR4.2 port
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Markus Aroharju and
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Risto Kankkunen Major contributions to the mixer support
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of GUS v3.7.
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Hunyue Yau Mixer support for SG NX Pro.
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Marc Hoffman PSS support (initial version).
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Rainer Vranken Initialization for Jazz16 (initial version).
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Peter Trattler Initial version of loadable module support for Linux.
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JRA Gibson 16 bit mode for Jazz16 (initial version)
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Davor Jadrijevic MAD16 support (initial version)
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Gregor Hoffleit Mozart support (initial version)
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Riccardo Facchetti Audio Excel DSP 16 (aedsp16) support
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James Hightower Spotting a tiny but important bug in CS423x support.
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Please look at lowlevel/README for more contributors.
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There are probably many other names missing. If you have sent me some
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patches and your name is not in the above list, please inform me.
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Sponsors etc.
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-------------
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The following companies have greatly helped development of this driver
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in form of a free copy of their product:
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Novell, Inc. UnixWare personal edition + SDK
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The Santa Cruz Operation, Inc. A SCO OpenServer + SDK
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Ensoniq Corp, a SoundScape card and extensive amount of assistance
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MediaTrix Peripherals Inc, a AudioTrix Pro card + SDK
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Acer, Inc. a pair of AcerMagic S23 cards.
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In addition the following companies have provided me sufficient amount
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of technical information at least some of their products (free or $$$):
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Advanced Gravis Computer Technology Ltd.
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Media Vision Inc.
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Analog Devices Inc.
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Logitech Inc.
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Aztech Labs Inc.
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Crystal Semiconductor Corporation,
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Integrated Circuit Systems Inc.
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OAK Technology
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OPTi
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Turtle Beach
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miro
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Ad Lib Inc. ($$)
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Music Quest Inc. ($$)
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Creative Labs ($$$)
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If you have some problems
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=========================
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Read the sound HOWTO (sunsite.unc.edu:/pub/Linux/docs/...?).
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Also look at the home page (http://www.4front-tech.com/ossfree). It may
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contain info about some recent bug fixes.
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It's likely that you have some problems when trying to use the sound driver
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first time. Soundcards don't have standard configuration so there are no
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good default configuration to use. Please try to use same I/O, DMA and IRQ
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values for the soundcard than with DOS.
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If you get an error message when trying to use the driver, please look
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at /var/adm/messages for more verbose error message.
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In general the easiest way to diagnose problems is to do "cat /dev/sndstat".
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If you get an error message, there are some problems with the driver setup:
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- "No such file or directory" tells that the device files for
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the sound driver are missing. Use the script at the end of
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linux/drivers/sound/Readme.linux to create them.
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- "No such device" tells that the sound driver is not in the kernel.
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You have to reconfigure and recompile the kernel to have the sound
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driver. Compiling the driver doesn't help alone. You have to boot
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with the newly compiled one before the driver becomes active.
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The Linux-HOWTO should help in this step.
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The following errors are likely with /dev/dsp and /dev/audio.
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- "No such device or address". This error message should not happen
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with /dev/sndstat but it's possible with the other sound devices.
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This error indicates that there are no suitable hardware for the
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device file or the sound driver has been compiled without support for
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this particular device. For example /dev/audio and /dev/dsp will not
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work if "digitized voice support" was not enabled during "make config".
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- "Device or resource busy". Probably the IRQ (or DMA) channel
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required by the soundcard is in use by some other device/driver.
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- "I/O error". Almost certainly (99%) it's an IRQ or DMA conflict.
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Look at the kernel messages in /var/adm/notice for more info.
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- "Invalid argument". The application is calling ioctl()
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with impossible parameters. Check that the application is
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for sound driver version 2.X or later.
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In general the printout of /dev/sndstat should tell what is the problem.
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It's possible that there are bugs in the sound driver but 99% of the problems
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reported to me are caused by somehow incorrect setup during "make config".
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Best regards,
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Hannu
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Hannu Savolainen
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hannu@4front-tech.com
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(Please check http://www.4front-tech.com/ossfree before mailing me).
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Snail mail: Hannu Savolainen
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Hiekkalaiturintie 3 A 8
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00980 Helsinki
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Finland
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