.. -*- coding: utf-8; mode: rst -*- .. _lirc_set_rec_carrier: ************************** ioctl LIRC_SET_REC_CARRIER ************************** Name ==== LIRC_SET_REC_CARRIER - Set carrier used to modulate IR receive. Synopsis ======== .. c:function:: int ioctl( int fd, LIRC_SET_REC_CARRIER, __u32 *frequency ) :name: LIRC_SET_REC_CARRIER Arguments ========= ``fd`` File descriptor returned by open(). ``frequency`` Frequency of the carrier that modulates PWM data, in Hz. Description =========== Set receive carrier used to modulate IR PWM pulses and spaces. .. note:: If called together with :ref:`LIRC_SET_REC_CARRIER_RANGE`, this ioctl sets the upper bound frequency that will be recognized by the device. 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.