mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 19:53:59 +08:00
5f536f4a22
Sphinx 3.x broke support for the cdomain.py extension, as the c domain code was rewritten. Due to that, the c tags need to be re-written, in order to use the new c domain notation. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
52 lines
1.3 KiB
ReStructuredText
52 lines
1.3 KiB
ReStructuredText
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
|
|
.. c:namespace:: RC
|
|
|
|
.. _lirc_set_transmitter_mask:
|
|
|
|
*******************************
|
|
ioctl LIRC_SET_TRANSMITTER_MASK
|
|
*******************************
|
|
|
|
Name
|
|
====
|
|
|
|
LIRC_SET_TRANSMITTER_MASK - Enables send codes on a given set of transmitters
|
|
|
|
Synopsis
|
|
========
|
|
|
|
.. c:macro:: LIRC_SET_TRANSMITTER_MASK
|
|
|
|
``int ioctl(int fd, LIRC_SET_TRANSMITTER_MASK, __u32 *mask)``
|
|
|
|
Arguments
|
|
=========
|
|
|
|
``fd``
|
|
File descriptor returned by open().
|
|
|
|
``mask``
|
|
Mask with channels to enable tx. Channel 0 is the least significant bit.
|
|
|
|
Description
|
|
===========
|
|
|
|
Some IR TX devices have multiple output channels, in such case,
|
|
:ref:`LIRC_CAN_SET_TRANSMITTER_MASK <LIRC-CAN-SET-TRANSMITTER-MASK>` is
|
|
returned via :ref:`LIRC_GET_FEATURES` and this ioctl sets what channels will
|
|
send IR codes.
|
|
|
|
This ioctl enables the given set of transmitters. The first transmitter is
|
|
encoded by the least significant bit and so on.
|
|
|
|
When an invalid bit mask is given, i.e. a bit is set, even though the device
|
|
does not have so many transitters, then this ioctl returns the number of
|
|
available transitters and does nothing otherwise.
|
|
|
|
Return Value
|
|
============
|
|
|
|
On success 0 is returned, on error -1 and the ``errno`` variable is set
|
|
appropriately. The generic error codes are described at the
|
|
:ref:`Generic Error Codes <gen-errors>` chapter.
|