1.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later 2.. c:namespace:: RC 3 4.. _lirc_set_send_carrier: 5 6*************************** 7ioctl LIRC_SET_SEND_CARRIER 8*************************** 9 10Name 11==== 12 13LIRC_SET_SEND_CARRIER - Set send carrier used to modulate IR TX. 14 15Synopsis 16======== 17 18.. c:macro:: LIRC_SET_SEND_CARRIER 19 20``int ioctl(int fd, LIRC_SET_SEND_CARRIER, __u32 *frequency)`` 21 22Arguments 23========= 24 25``fd`` 26 File descriptor returned by open(). 27 28``frequency`` 29 Frequency of the carrier to be modulated, in Hz. 30 31Description 32=========== 33 34Set send carrier used to modulate IR PWM pulses and spaces. 35 36Return Value 37============ 38 39On success 0 is returned, on error -1 and the ``errno`` variable is set 40appropriately. The generic error codes are described at the 41:ref:`Generic Error Codes <gen-errors>` chapter. 42