1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1. 1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
2 .. c:namespace:: RC 2 .. c:namespace:: RC
3 3
4 .. _lirc_set_rec_carrier: 4 .. _lirc_set_rec_carrier:
5 5
6 ************************** 6 **************************
7 ioctl LIRC_SET_REC_CARRIER 7 ioctl LIRC_SET_REC_CARRIER
8 ************************** 8 **************************
9 9
10 Name 10 Name
11 ==== 11 ====
12 12
13 LIRC_SET_REC_CARRIER - Set carrier used to mod 13 LIRC_SET_REC_CARRIER - Set carrier used to modulate IR receive.
14 14
15 Synopsis 15 Synopsis
16 ======== 16 ========
17 17
18 .. c:macro:: LIRC_SET_REC_CARRIER 18 .. c:macro:: LIRC_SET_REC_CARRIER
19 19
20 ``int ioctl(int fd, LIRC_SET_REC_CARRIER, __u3 20 ``int ioctl(int fd, LIRC_SET_REC_CARRIER, __u32 *frequency)``
21 21
22 Arguments 22 Arguments
23 ========= 23 =========
24 24
25 ``fd`` 25 ``fd``
26 File descriptor returned by open(). 26 File descriptor returned by open().
27 27
28 ``frequency`` 28 ``frequency``
29 Frequency of the carrier that modulates PW 29 Frequency of the carrier that modulates PWM data, in Hz.
30 30
31 Description 31 Description
32 =========== 32 ===========
33 33
34 Set receive carrier used to modulate IR PWM pu 34 Set receive carrier used to modulate IR PWM pulses and spaces.
35 35
36 .. note:: 36 .. note::
37 37
38 If called together with :ref:`LIRC_SET_REC_ 38 If called together with :ref:`LIRC_SET_REC_CARRIER_RANGE`, this ioctl
39 sets the upper bound frequency that will be 39 sets the upper bound frequency that will be recognized by the device.
40 40
41 Return Value 41 Return Value
42 ============ 42 ============
43 43
44 On success 0 is returned, on error -1 and the 44 On success 0 is returned, on error -1 and the ``errno`` variable is set
45 appropriately. The generic error codes are des 45 appropriately. The generic error codes are described at the
46 :ref:`Generic Error Codes <gen-errors>` chapte 46 :ref:`Generic Error Codes <gen-errors>` chapter.
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.