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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /Documentation/ABI/testing/sysfs-class-rc
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+What: /sys/class/rc/
+Date: Apr 2010
+KernelVersion: 2.6.35
+Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
+Description:
+ The rc/ class sub-directory belongs to the Remote Controller
+ core and provides a sysfs interface for configuring infrared
+ remote controller receivers.
+
+What: /sys/class/rc/rc<N>/
+Date: Apr 2010
+KernelVersion: 2.6.35
+Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
+Description:
+ A /sys/class/rc/rcN directory is created for each remote
+ control receiver device where N is the number of the receiver.
+
+What: /sys/class/rc/rc<N>/protocols
+Date: Jun 2010
+KernelVersion: 2.6.36
+Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
+Description:
+ Reading this file returns a list of available protocols,
+ something like::
+
+ "rc5 [rc6] nec jvc [sony]"
+
+ Enabled protocols are shown in [] brackets.
+
+ Writing "+proto" will add a protocol to the list of enabled
+ protocols.
+
+ Writing "-proto" will remove a protocol from the list of enabled
+ protocols.
+
+ Writing "proto" will enable only "proto".
+
+ Writing "none" will disable all protocols.
+
+ Write fails with EINVAL if an invalid protocol combination or
+ unknown protocol name is used.
+
+What: /sys/class/rc/rc<N>/filter
+Date: Jan 2014
+KernelVersion: 3.15
+Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
+Description:
+ Sets the scancode filter expected value.
+
+ Use in combination with /sys/class/rc/rcN/filter_mask to set the
+ expected value of the bits set in the filter mask.
+ If the hardware supports it then scancodes which do not match
+ the filter will be ignored. Otherwise the write will fail with
+ an error.
+
+ This value may be reset to 0 if the current protocol is altered.
+
+What: /sys/class/rc/rc<N>/filter_mask
+Date: Jan 2014
+KernelVersion: 3.15
+Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
+Description:
+ Sets the scancode filter mask of bits to compare.
+ Use in combination with /sys/class/rc/rcN/filter to set the bits
+ of the scancode which should be compared against the expected
+ value. A value of 0 disables the filter to allow all valid
+ scancodes to be processed.
+
+ If the hardware supports it then scancodes which do not match
+ the filter will be ignored. Otherwise the write will fail with
+ an error.
+
+ This value may be reset to 0 if the current protocol is altered.
+
+What: /sys/class/rc/rc<N>/wakeup_protocols
+Date: Feb 2017
+KernelVersion: 4.11
+Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
+Description:
+ Reading this file returns a list of available protocols to use
+ for the wakeup filter, something like::
+
+ "rc-5 nec nec-x rc-6-0 rc-6-6a-24 [rc-6-6a-32] rc-6-mce"
+
+ Note that protocol variants are listed, so "nec", "sony",
+ "rc-5", "rc-6" have their different bit length encodings
+ listed if available.
+
+ The enabled wakeup protocol is shown in [] brackets.
+
+ Only one protocol can be selected at a time.
+
+ Writing "proto" will use "proto" for wakeup events.
+
+ Writing "none" will disable wakeup.
+
+ Write fails with EINVAL if an invalid protocol combination or
+ unknown protocol name is used, or if wakeup is not supported by
+ the hardware.
+
+What: /sys/class/rc/rc<N>/wakeup_filter
+Date: Jan 2014
+KernelVersion: 3.15
+Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
+Description:
+ Sets the scancode wakeup filter expected value.
+
+ Use in combination with /sys/class/rc/rcN/wakeup_filter_mask to
+ set the expected value of the bits set in the wakeup filter mask
+ to trigger a system wake event.
+
+ If the hardware supports it and wakeup_filter_mask is not 0 then
+ scancodes which match the filter will wake the system from e.g.
+ suspend to RAM or power off.
+
+ Otherwise the write will fail with an error.
+
+ This value may be reset to 0 if the wakeup protocol is altered.
+
+What: /sys/class/rc/rc<N>/wakeup_filter_mask
+Date: Jan 2014
+KernelVersion: 3.15
+Contact: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
+Description:
+ Sets the scancode wakeup filter mask of bits to compare.
+
+ Use in combination with /sys/class/rc/rcN/wakeup_filter to set
+ the bits of the scancode which should be compared against the
+ expected value to trigger a system wake event.
+
+ If the hardware supports it and wakeup_filter_mask is not 0 then
+ scancodes which match the filter will wake the system from e.g.
+ suspend to RAM or power off.
+
+ Otherwise the write will fail with an error.
+
+ This value may be reset to 0 if the wakeup protocol is altered.