18c2ecf20Sopenharmony_ci.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 28c2ecf20Sopenharmony_ci.. c:namespace:: RC 38c2ecf20Sopenharmony_ci 48c2ecf20Sopenharmony_ci.. _lirc_set_rec_carrier: 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ci************************** 78c2ecf20Sopenharmony_ciioctl LIRC_SET_REC_CARRIER 88c2ecf20Sopenharmony_ci************************** 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ciName 118c2ecf20Sopenharmony_ci==== 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ciLIRC_SET_REC_CARRIER - Set carrier used to modulate IR receive. 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ciSynopsis 168c2ecf20Sopenharmony_ci======== 178c2ecf20Sopenharmony_ci 188c2ecf20Sopenharmony_ci.. c:macro:: LIRC_SET_REC_CARRIER 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci``int ioctl(int fd, LIRC_SET_REC_CARRIER, __u32 *frequency)`` 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_ciArguments 238c2ecf20Sopenharmony_ci========= 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci``fd`` 268c2ecf20Sopenharmony_ci File descriptor returned by open(). 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ci``frequency`` 298c2ecf20Sopenharmony_ci Frequency of the carrier that modulates PWM data, in Hz. 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ciDescription 328c2ecf20Sopenharmony_ci=========== 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ciSet receive carrier used to modulate IR PWM pulses and spaces. 358c2ecf20Sopenharmony_ci 368c2ecf20Sopenharmony_ci.. note:: 378c2ecf20Sopenharmony_ci 388c2ecf20Sopenharmony_ci If called together with :ref:`LIRC_SET_REC_CARRIER_RANGE`, this ioctl 398c2ecf20Sopenharmony_ci sets the upper bound frequency that will be recognized by the device. 408c2ecf20Sopenharmony_ci 418c2ecf20Sopenharmony_ciReturn Value 428c2ecf20Sopenharmony_ci============ 438c2ecf20Sopenharmony_ci 448c2ecf20Sopenharmony_ciOn success 0 is returned, on error -1 and the ``errno`` variable is set 458c2ecf20Sopenharmony_ciappropriately. The generic error codes are described at the 468c2ecf20Sopenharmony_ci:ref:`Generic Error Codes <gen-errors>` chapter. 47