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marcus.erl |
#
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# IrDA protocol configuration
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#
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menuconfig IRDA
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depends on NET && !S390
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tristate "IrDA (infrared) subsystem support"
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select CRC_CCITT
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---help---
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Say Y here if you want to build support for the IrDA (TM) protocols.
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The Infrared Data Associations (tm) specifies standards for wireless
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infrared communication and is supported by most laptops and PDA's.
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To use Linux support for the IrDA (tm) protocols, you will also need
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some user-space utilities like irattach. For more information, see
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the file . You also want to
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read the IR-HOWTO, available at
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.
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If you want to exchange bits of data (vCal, vCard) with a PDA, you
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will need to install some OBEX application, such as OpenObex :
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To compile this support as a module, choose M here: the module will
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be called irda.
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comment "IrDA protocols"
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depends on IRDA
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source "net/irda/irlan/Kconfig"
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source "net/irda/irnet/Kconfig"
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source "net/irda/ircomm/Kconfig"
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config IRDA_ULTRA
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bool "Ultra (connectionless) protocol"
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depends on IRDA
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help
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Say Y here to support the connectionless Ultra IRDA protocol.
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Ultra allows to exchange data over IrDA with really simple devices
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(watch, beacon) without the overhead of the IrDA protocol (no handshaking,
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no management frames, simple fixed header).
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Ultra is available as a special socket : socket(AF_IRDA, SOCK_DGRAM, 1);
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comment "IrDA options"
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depends on IRDA
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config IRDA_CACHE_LAST_LSAP
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bool "Cache last LSAP"
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depends on IRDA
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help
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Say Y here if you want IrLMP to cache the last LSAP used. This
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makes sense since most frames will be sent/received on the same
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connection. Enabling this option will save a hash-lookup per frame.
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If unsure, say Y.
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config IRDA_FAST_RR
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bool "Fast RRs (low latency)"
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depends on IRDA
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---help---
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Say Y here is you want IrLAP to send fast RR (Receive Ready) frames
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when acting as a primary station.
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Disabling this option will make latency over IrDA very bad. Enabling
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this option will make the IrDA stack send more packet than strictly
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necessary, thus reduce your battery life (but not that much).
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Fast RR will make IrLAP send out a RR frame immediately when
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receiving a frame if its own transmit queue is currently empty. This
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will give a lot of speed improvement when receiving much data since
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the secondary station will not have to wait the max. turn around
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time (usually 500ms) before it is allowed to transmit the next time.
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If the transmit queue of the secondary is also empty, the primary will
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start backing-off before sending another RR frame, waiting longer
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each time until the back-off reaches the max. turn around time.
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This back-off increase in controlled via
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/proc/sys/net/irda/fast_poll_increase
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If unsure, say Y.
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config IRDA_DEBUG
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bool "Debug information"
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depends on IRDA
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help
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Say Y here if you want the IrDA subsystem to write debug information
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to your syslog. You can change the debug level in
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/proc/sys/net/irda/debug .
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When this option is enabled, the IrDA also perform many extra internal
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verifications which will usually prevent the kernel to crash in case of
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bugs.
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If unsure, say Y (since it makes it easier to find the bugs).
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source "drivers/net/irda/Kconfig"
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