1*4882a593Smuzhiyun.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2*4882a593Smuzhiyun.. c:namespace:: RC 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun.. _lirc_set_rec_carrier: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun************************** 7*4882a593Smuzhiyunioctl LIRC_SET_REC_CARRIER 8*4882a593Smuzhiyun************************** 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunName 11*4882a593Smuzhiyun==== 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunLIRC_SET_REC_CARRIER - Set carrier used to modulate IR receive. 14*4882a593Smuzhiyun 15*4882a593SmuzhiyunSynopsis 16*4882a593Smuzhiyun======== 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun.. c:macro:: LIRC_SET_REC_CARRIER 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun``int ioctl(int fd, LIRC_SET_REC_CARRIER, __u32 *frequency)`` 21*4882a593Smuzhiyun 22*4882a593SmuzhiyunArguments 23*4882a593Smuzhiyun========= 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun``fd`` 26*4882a593Smuzhiyun File descriptor returned by open(). 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun``frequency`` 29*4882a593Smuzhiyun Frequency of the carrier that modulates PWM data, in Hz. 30*4882a593Smuzhiyun 31*4882a593SmuzhiyunDescription 32*4882a593Smuzhiyun=========== 33*4882a593Smuzhiyun 34*4882a593SmuzhiyunSet receive carrier used to modulate IR PWM pulses and spaces. 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun.. note:: 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun If called together with :ref:`LIRC_SET_REC_CARRIER_RANGE`, this ioctl 39*4882a593Smuzhiyun sets the upper bound frequency that will be recognized by the device. 40*4882a593Smuzhiyun 41*4882a593SmuzhiyunReturn Value 42*4882a593Smuzhiyun============ 43*4882a593Smuzhiyun 44*4882a593SmuzhiyunOn success 0 is returned, on error -1 and the ``errno`` variable is set 45*4882a593Smuzhiyunappropriately. The generic error codes are described at the 46*4882a593Smuzhiyun:ref:`Generic Error Codes <gen-errors>` chapter. 47