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1.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later2.. c:namespace:: RC3 4.. _lirc_set_send_carrier:5 6***************************7ioctl LIRC_SET_SEND_CARRIER8***************************9 10Name11====12 13LIRC_SET_SEND_CARRIER - Set send carrier used to modulate IR TX.14 15Synopsis16========17 18.. c:macro:: LIRC_SET_SEND_CARRIER19 20``int ioctl(int fd, LIRC_SET_SEND_CARRIER, __u32 *frequency)``21 22Arguments23=========24 25``fd``26 File descriptor returned by open().27 28``frequency``29 Frequency of the carrier to be modulated, in Hz.30 31Description32===========33 34Set send carrier used to modulate IR PWM pulses and spaces.35 36Return Value37============38 39On success 0 is returned, on error -1 and the ``errno`` variable is set40appropriately. The generic error codes are described at the41:ref:`Generic Error Codes <gen-errors>` chapter.42