1.. Permission is granted to copy, distribute and/or modify this
2.. document under the terms of the GNU Free Documentation License,
3.. Version 1.1 or any later version published by the Free Software
4.. Foundation, with no Invariant Sections, no Front-Cover Texts
5.. and no Back-Cover Texts. A copy of the license is included at
6.. Documentation/userspace-api/media/fdl-appendix.rst.
7..
8.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
9
10.. _lirc_set_send_carrier:
11
12***************************
13ioctl LIRC_SET_SEND_CARRIER
14***************************
15
16Name
17====
18
19LIRC_SET_SEND_CARRIER - Set send carrier used to modulate IR TX.
20
21
22Synopsis
23========
24
25.. c:function:: int ioctl( int fd, LIRC_SET_SEND_CARRIER, __u32 *frequency )
26    :name: LIRC_SET_SEND_CARRIER
27
28Arguments
29=========
30
31``fd``
32    File descriptor returned by open().
33
34``frequency``
35    Frequency of the carrier to be modulated, in Hz.
36
37Description
38===========
39
40Set send carrier used to modulate IR PWM pulses and spaces.
41
42
43Return Value
44============
45
46On success 0 is returned, on error -1 and the ``errno`` variable is set
47appropriately. The generic error codes are described at the
48:ref:`Generic Error Codes <gen-errors>` chapter.
49