1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
4 .. _lirc_set_send_carrier:
6 ***************************
7 ioctl LIRC_SET_SEND_CARRIER
8 ***************************
13 LIRC_SET_SEND_CARRIER - Set send carrier used to modulate IR TX.
18 .. c:macro:: LIRC_SET_SEND_CARRIER
20 ``int ioctl(int fd, LIRC_SET_SEND_CARRIER, __u32 *frequency)``
26 File descriptor returned by open().
29 Frequency of the carrier to be modulated, in Hz.
34 Set send carrier used to modulate IR PWM pulses and spaces.
39 On success 0 is returned, on error -1 and the ``errno`` variable is set
40 appropriately. The generic error codes are described at the
41 :ref:`Generic Error Codes <gen-errors>` chapter.