.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later .. c:namespace:: RC .. _lirc_set_send_carrier: *************************** ioctl LIRC_SET_SEND_CARRIER *************************** Name ==== LIRC_SET_SEND_CARRIER - Set send carrier used to modulate IR TX. Synopsis ======== .. c:macro:: LIRC_SET_SEND_CARRIER ``int ioctl(int fd, LIRC_SET_SEND_CARRIER, __u32 *frequency)`` Arguments ========= ``fd`` File descriptor returned by open(). ``frequency`` Frequency of the carrier to be modulated, in Hz. Description =========== Set send carrier used to modulate IR PWM pulses and spaces. Return Value ============ On success 0 is returned, on error -1 and the ``errno`` variable is set appropriately. The generic error codes are described at the :ref:`Generic Error Codes ` chapter.