|From:||Jarod Wilson <email@example.com>|
|Subject:||[PATCH 0/3 v2] linux infrared remote control drivers|
|Date:||Tue, 20 Oct 2009 09:56:33 -0400|
|Cc:||firstname.lastname@example.org, email@example.com, Janne Grunau <firstname.lastname@example.org>, Christoph Bartelmus <email@example.com>|
This here is a second go at submitting linux infrared remote control (lirc) drivers for kernel inclusion, with a much smaller patch set that includes only the core lirc driver and two device drivers, all three of which have been heavily updated since the last submission, based on feedback received. Never meant for it to be more than a year before the second attempt at submitting lirc drivers, but day jobs and life tend to get in the way. Development work has been ongoing despite all that, just took a bit longer than anticipated to address as much of the review comments as possible and get up the guts for another submission. ;) For those not in the know, lirc has existed out-of-tree at lirc.org for years and years, and is currently patched into the kernels or provided as add-on kernel module packages in a number of distributions (its been patched into Fedora kernels going on 2.5 years now), so the code is in fairly wide use and is reasonably well tested, despite not being in the upstream kernel itself. The drivers included in this submission are for the Windows MCE USB IR transceivers and the SoundGraph iMON USB receivers/displays. I have multiple devices driven by each of these drivers, and have done fairly extensive testing on them, currently primarily on 2.6.31 and 2.6.32. The MCE transceiver can handle just about any IR protocol you can throw at it on the RX side, thus it passes raw IR through to the userspace lircd daemon for processing. An lircd.conf file maps IR codes to key codes, and they can be consumed by the system either via applications with lirc client support, or they can be fed back into the input subsys via uinput. The transmit side has no input subsys interaction. Note that this driver now handles both generations of MCE transceivers. The iMON receivers come in two flavors, an early version that passes raw IR, and all more recent versions that do onboard decoding of IR signals. The iMON driver now supports running as a pure input device on devices with onboard decoding, as well as "classic" lirc mode for the ones that don't decode onboard and includes a modparam option to let the onboard decode devices continue to operate in "classic" mode, for those who prefer it. There's been talk about a raw IR input device type/ioctls/whatever. But it doesn't yet exist, and I know *I* don't have time to write it up... lircd and lirc drivers could be adapted to use such a thing if/when it sees the light of day, but for now, the lirc_dev ("classic" lirc mode) interface is quite well battle-tested, and very capable for both raw IR receive and transmit. There's also been a patchset proposed to do raw IR decoding in the kernel. I'm fine with that idea too, but only if there is *also* a way to get the raw IR out to userspace (lircd), as there are some esoteric IR protocols out there and we can be a lot more nimble about adding support for decoding new and different protocols in userspace than we can in the kernel -- and lircd can now feed all the resulting key codes back into the input subsystem via uinput too. The hope is that we can get lirc_dev (upon which all other lirc drivers depend) merged, along with these initial two drivers, then we can start reviewing the additional 15 or so lirc drivers for inclusion as well. Combined diffstat: MAINTAINERS | 9 + drivers/input/Kconfig | 2 + drivers/input/Makefile | 1 + drivers/input/lirc/Kconfig | 26 + drivers/input/lirc/Makefile | 8 + drivers/input/lirc/lirc.h | 100 ++ drivers/input/lirc/lirc_dev.c | 837 +++++++++++++ drivers/input/lirc/lirc_dev.h | 194 +++ drivers/input/lirc/lirc_imon.c | 2471 ++++++++++++++++++++++++++++++++++++++ drivers/input/lirc/lirc_imon.h | 209 ++++ drivers/input/lirc/lirc_mceusb.c | 1235 +++++++++++++++++++ 11 files changed, 5092 insertions(+), 0 deletions(-) Git tree: * git://git.wilsonet.com/linux-2.6-lirc.git/ Git web: * http://git.wilsonet.com/linux-2.6-lirc.git/ Upstream lirc project: * http://www.lirc.org/ (If you're going to clone, I'd highly suggest adding it as a remote to a linus' tree checkout rather than clone'ing directly, as I don't have nearly as much bandwidth at home as kernel.org... ;) -- Jarod Wilson firstname.lastname@example.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to email@example.com More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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