48 lines
1.1 KiB
ReStructuredText
Executable file
48 lines
1.1 KiB
ReStructuredText
Executable file
.. -*- coding: utf-8; mode: rst -*-
|
|
|
|
.. _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:function:: int ioctl( int fd, LIRC_SET_REC_CARRIER_RANGE, __u32 *frequency )
|
|
:name: LIRC_SET_REC_CARRIER_RANGE
|
|
|
|
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.
|