162306a36Sopenharmony_ci.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later 262306a36Sopenharmony_ci.. c:namespace:: RC 362306a36Sopenharmony_ci 462306a36Sopenharmony_ci.. _lirc_set_rec_carrier: 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci************************** 762306a36Sopenharmony_ciioctl LIRC_SET_REC_CARRIER 862306a36Sopenharmony_ci************************** 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ciName 1162306a36Sopenharmony_ci==== 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ciLIRC_SET_REC_CARRIER - Set carrier used to modulate IR receive. 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ciSynopsis 1662306a36Sopenharmony_ci======== 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci.. c:macro:: LIRC_SET_REC_CARRIER 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ci``int ioctl(int fd, LIRC_SET_REC_CARRIER, __u32 *frequency)`` 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ciArguments 2362306a36Sopenharmony_ci========= 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci``fd`` 2662306a36Sopenharmony_ci File descriptor returned by open(). 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ci``frequency`` 2962306a36Sopenharmony_ci Frequency of the carrier that modulates PWM data, in Hz. 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ciDescription 3262306a36Sopenharmony_ci=========== 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ciSet receive carrier used to modulate IR PWM pulses and spaces. 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci.. note:: 3762306a36Sopenharmony_ci 3862306a36Sopenharmony_ci If called together with :ref:`LIRC_SET_REC_CARRIER_RANGE`, this ioctl 3962306a36Sopenharmony_ci sets the upper bound frequency that will be recognized by the device. 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ciReturn Value 4262306a36Sopenharmony_ci============ 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_ciOn success 0 is returned, on error -1 and the ``errno`` variable is set 4562306a36Sopenharmony_ciappropriately. The generic error codes are described at the 4662306a36Sopenharmony_ci:ref:`Generic Error Codes <gen-errors>` chapter. 47