mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-28 13:34:38 +08:00
055d111b11
Some files start with an upper letter. Also, they have big names. rename them. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
144 lines
4.1 KiB
ReStructuredText
144 lines
4.1 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
|
|
|
|
.. _remote_controllers_sysfs_nodes:
|
|
|
|
*******************************
|
|
Remote Controller's sysfs nodes
|
|
*******************************
|
|
|
|
As defined at ``Documentation/ABI/testing/sysfs-class-rc``, those are
|
|
the sysfs nodes that control the Remote Controllers:
|
|
|
|
|
|
.. _sys_class_rc:
|
|
|
|
/sys/class/rc/
|
|
==============
|
|
|
|
The ``/sys/class/rc/`` class sub-directory belongs to the Remote
|
|
Controller core and provides a sysfs interface for configuring infrared
|
|
remote controller receivers.
|
|
|
|
|
|
.. _sys_class_rc_rcN:
|
|
|
|
/sys/class/rc/rcN/
|
|
==================
|
|
|
|
A ``/sys/class/rc/rcN`` directory is created for each remote control
|
|
receiver device where N is the number of the receiver.
|
|
|
|
|
|
.. _sys_class_rc_rcN_protocols:
|
|
|
|
/sys/class/rc/rcN/protocols
|
|
===========================
|
|
|
|
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.
|
|
|
|
|
|
.. _sys_class_rc_rcN_filter:
|
|
|
|
/sys/class/rc/rcN/filter
|
|
========================
|
|
|
|
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.
|
|
|
|
|
|
.. _sys_class_rc_rcN_filter_mask:
|
|
|
|
/sys/class/rc/rcN/filter_mask
|
|
=============================
|
|
|
|
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.
|
|
|
|
|
|
.. _sys_class_rc_rcN_wakeup_protocols:
|
|
|
|
/sys/class/rc/rcN/wakeup_protocols
|
|
==================================
|
|
|
|
Reading this file returns a list of available protocols to use for the
|
|
wakeup filter, something like:
|
|
|
|
``rc5 rc6 nec jvc [sony]``
|
|
|
|
The enabled wakeup protocol is shown in [] brackets.
|
|
|
|
Writing "+proto" will add a protocol to the list of enabled wakeup
|
|
protocols.
|
|
|
|
Writing "-proto" will remove a protocol from the list of enabled wakeup
|
|
protocols.
|
|
|
|
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.
|
|
|
|
|
|
.. _sys_class_rc_rcN_wakeup_filter:
|
|
|
|
/sys/class/rc/rcN/wakeup_filter
|
|
===============================
|
|
|
|
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.
|
|
|
|
|
|
.. _sys_class_rc_rcN_wakeup_filter_mask:
|
|
|
|
/sys/class/rc/rcN/wakeup_filter_mask
|
|
====================================
|
|
|
|
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.
|