50 lines
1.1 KiB
ReStructuredText
50 lines
1.1 KiB
ReStructuredText
|
.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
|
||
|
|
.. c:namespace:: RC
|
||
|
|
|
||
|
|
.. _lirc_set_rec_carrier_range:
|
||
|
|
|
||
|
|
********************************
|
||
|
|
ioctl LIRC_SET_REC_CARRIER_RANGE
|
||
|
|
********************************
|
||
|
|
|
||
|
|
Name
|
||
|
|
====
|
||
|
|
|
||
|
|
LIRC_SET_REC_CARRIER_RANGE - Set lower bound of the carrier used to modulate
|
||
|
|
IR receive.
|
||
|
|
|
||
|
|
Synopsis
|
||
|
|
========
|
||
|
|
|
||
|
|
.. c:macro:: LIRC_SET_REC_CARRIER_RANGE
|
||
|
|
|
||
|
|
``int ioctl(int fd, LIRC_SET_REC_CARRIER_RANGE, __u32 *frequency)``
|
||
|
|
|
||
|
|
Arguments
|
||
|
|
=========
|
||
|
|
|
||
|
|
``fd``
|
||
|
|
File descriptor returned by open().
|
||
|
|
|
||
|
|
``frequency``
|
||
|
|
Frequency of the carrier that modulates PWM data, in Hz.
|
||
|
|
|
||
|
|
Description
|
||
|
|
===========
|
||
|
|
|
||
|
|
This ioctl sets the upper range of carrier frequency that will be recognized
|
||
|
|
by the IR receiver.
|
||
|
|
|
||
|
|
.. note::
|
||
|
|
|
||
|
|
To set a range use :ref:`LIRC_SET_REC_CARRIER_RANGE
|
||
|
|
<LIRC_SET_REC_CARRIER_RANGE>` with the lower bound first and later call
|
||
|
|
:ref:`LIRC_SET_REC_CARRIER <LIRC_SET_REC_CARRIER>` with the upper bound.
|
||
|
|
|
||
|
|
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.
|