49 строки
949 B
ReStructuredText
49 строки
949 B
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
|
|
|
|
.. _lirc_set_rec_carrier:
|
|
|
|
**************************
|
|
ioctl LIRC_SET_REC_CARRIER
|
|
**************************
|
|
|
|
Name
|
|
====
|
|
|
|
LIRC_SET_REC_CARRIER - Set carrier used to modulate IR receive.
|
|
|
|
|
|
Synopsis
|
|
========
|
|
|
|
.. c:function:: int ioctl( int fd, int request, __u32 *frequency )
|
|
|
|
Arguments
|
|
=========
|
|
|
|
``fd``
|
|
File descriptor returned by open().
|
|
|
|
``request``
|
|
LIRC_SET_REC_CARRIER
|
|
|
|
``frequency``
|
|
Frequency of the carrier that modulates PWM data, in Hz.
|
|
|
|
Description
|
|
===========
|
|
|
|
Set receive carrier used to modulate IR PWM pulses and spaces.
|
|
|
|
.. note::
|
|
|
|
If called together with :ref:`LIRC_SET_REC_CARRIER_RANGE`, this ioctl
|
|
sets the upper bound frequency that will be recognized by the device.
|
|
|
|
|
|
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.
|