# # IrDA protocol configuration # menuconfig IRDA depends on NET && !S390 tristate "IrDA (infrared) subsystem support" select CRC_CCITT ---help--- Say Y here if you want to build support for the IrDA (TM) protocols. The Infrared Data Associations (tm) specifies standards for wireless infrared communication and is supported by most laptops and PDA's. To use Linux support for the IrDA (tm) protocols, you will also need some user-space utilities like irattach. For more information, see the file . You also want to read the IR-HOWTO, available at . If you want to exchange bits of data (vCal, vCard) with a PDA, you will need to install some OBEX application, such as OpenObex : To compile this support as a module, choose M here: the module will be called irda. comment "IrDA protocols" depends on IRDA source "net/irda/irlan/Kconfig" source "net/irda/irnet/Kconfig" source "net/irda/ircomm/Kconfig" config IRDA_ULTRA bool "Ultra (connectionless) protocol" depends on IRDA help Say Y here to support the connectionless Ultra IRDA protocol. Ultra allows to exchange data over IrDA with really simple devices (watch, beacon) without the overhead of the IrDA protocol (no handshaking, no management frames, simple fixed header). Ultra is available as a special socket : socket(AF_IRDA, SOCK_DGRAM, 1); comment "IrDA options" depends on IRDA config IRDA_CACHE_LAST_LSAP bool "Cache last LSAP" depends on IRDA help Say Y here if you want IrLMP to cache the last LSAP used. This makes sense since most frames will be sent/received on the same connection. Enabling this option will save a hash-lookup per frame. If unsure, say Y. config IRDA_FAST_RR bool "Fast RRs (low latency)" depends on IRDA ---help--- Say Y here is you want IrLAP to send fast RR (Receive Ready) frames when acting as a primary station. Disabling this option will make latency over IrDA very bad. Enabling this option will make the IrDA stack send more packet than strictly necessary, thus reduce your battery life (but not that much). Fast RR will make IrLAP send out a RR frame immediately when receiving a frame if its own transmit queue is currently empty. This will give a lot of speed improvement when receiving much data since the secondary station will not have to wait the max. turn around time (usually 500ms) before it is allowed to transmit the next time. If the transmit queue of the secondary is also empty, the primary will start backing-off before sending another RR frame, waiting longer each time until the back-off reaches the max. turn around time. This back-off increase in controlled via /proc/sys/net/irda/fast_poll_increase If unsure, say Y. config IRDA_DEBUG bool "Debug information" depends on IRDA help Say Y here if you want the IrDA subsystem to write debug information to your syslog. You can change the debug level in /proc/sys/net/irda/debug . When this option is enabled, the IrDA also perform many extra internal verifications which will usually prevent the kernel to crash in case of bugs. If unsure, say Y (since it makes it easier to find the bugs). source "drivers/net/irda/Kconfig" >20space:mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-12 21:58:13 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-12 21:58:13 -0800
commite7aa8c2eb11ba69b1b69099c3c7bd6be3087b0ba (patch)
treef63906f41699c8e38af9d12b063e2ceab0286ef2 /sound/firewire/fireworks/fireworks_midi.c
parente34bac726d27056081d0250c0e173e4b155aa340 (diff)
parent868c97a846a73e937d835b09b8c885a69df50ec8 (diff)
Merge tag 'docs-4.10' of git://git.lwn.net/linuxHEADmaster
Pull documentation update from Jonathan Corbet: "These are the documentation changes for 4.10. It's another busy cycle for the docs tree, as the sphinx conversion continues. Highlights include: - Further work on PDF output, which remains a bit of a pain but should be more solid now. - Five more DocBook template files converted to Sphinx. Only 27 to go... Lots of plain-text files have also been converted and integrated. - Images in binary formats have been replaced with more source-friendly versions. - Various bits of organizational work, including the renaming of various files discussed at the kernel summit. - New documentation for the device_link mechanism. ... and, of course, lots of typo fixes and small updates" * tag 'docs-4.10' of git://git.lwn.net/linux: (193 commits) dma-buf: Extract dma-buf.rst Update Documentation/00-INDEX docs: 00-INDEX: document directories/files with no docs docs: 00-INDEX: remove non-existing entries docs: 00-INDEX: add missing entries for documentation files/dirs docs: 00-INDEX: consolidate process/ and admin-guide/ description scripts: add a script to check if Documentation/00-INDEX is sane Docs: change sh -> awk in REPORTING-BUGS Documentation/core-api/device_link: Add initial documentation core-api: remove an unexpected unident ppc/idle: Add documentation for powersave=off Doc: Correct typo, "Introdution" => "Introduction" Documentation/atomic_ops.txt: convert to ReST markup Documentation/local_ops.txt: convert to ReST markup Documentation/assoc_array.txt: convert to ReST markup docs-rst: parse-headers.pl: cleanup the documentation docs-rst: fix media cleandocs target docs-rst: media/Makefile: reorganize the rules docs-rst: media: build SVG from graphviz files docs-rst: replace bayer.png by a SVG image ...
Diffstat (limited to 'sound/firewire/fireworks/fireworks_midi.c')