1*ac7f9d02SMauro Carvalho Chehab.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later 25f536f4aSMauro Carvalho Chehab.. c:namespace:: RC 354f38fcaSMauro Carvalho Chehab 454f38fcaSMauro Carvalho Chehab.. _lirc_set_rec_carrier_range: 554f38fcaSMauro Carvalho Chehab 654f38fcaSMauro Carvalho Chehab******************************** 754f38fcaSMauro Carvalho Chehabioctl LIRC_SET_REC_CARRIER_RANGE 854f38fcaSMauro Carvalho Chehab******************************** 954f38fcaSMauro Carvalho Chehab 1054f38fcaSMauro Carvalho ChehabName 1154f38fcaSMauro Carvalho Chehab==== 1254f38fcaSMauro Carvalho Chehab 1354f38fcaSMauro Carvalho ChehabLIRC_SET_REC_CARRIER_RANGE - Set lower bound of the carrier used to modulate 1454f38fcaSMauro Carvalho ChehabIR receive. 1554f38fcaSMauro Carvalho Chehab 1654f38fcaSMauro Carvalho ChehabSynopsis 1754f38fcaSMauro Carvalho Chehab======== 1854f38fcaSMauro Carvalho Chehab 195f536f4aSMauro Carvalho Chehab.. c:macro:: LIRC_SET_REC_CARRIER_RANGE 205f536f4aSMauro Carvalho Chehab 215f536f4aSMauro Carvalho Chehab``int ioctl(int fd, LIRC_SET_REC_CARRIER_RANGE, __u32 *frequency)`` 2254f38fcaSMauro Carvalho Chehab 2354f38fcaSMauro Carvalho ChehabArguments 2454f38fcaSMauro Carvalho Chehab========= 2554f38fcaSMauro Carvalho Chehab 2654f38fcaSMauro Carvalho Chehab``fd`` 2754f38fcaSMauro Carvalho Chehab File descriptor returned by open(). 2854f38fcaSMauro Carvalho Chehab 2954f38fcaSMauro Carvalho Chehab``frequency`` 3054f38fcaSMauro Carvalho Chehab Frequency of the carrier that modulates PWM data, in Hz. 3154f38fcaSMauro Carvalho Chehab 3254f38fcaSMauro Carvalho ChehabDescription 3354f38fcaSMauro Carvalho Chehab=========== 3454f38fcaSMauro Carvalho Chehab 3554f38fcaSMauro Carvalho ChehabThis ioctl sets the upper range of carrier frequency that will be recognized 3654f38fcaSMauro Carvalho Chehabby the IR receiver. 3754f38fcaSMauro Carvalho Chehab 3854f38fcaSMauro Carvalho Chehab.. note:: 3954f38fcaSMauro Carvalho Chehab 4054f38fcaSMauro Carvalho Chehab To set a range use :ref:`LIRC_SET_REC_CARRIER_RANGE 4154f38fcaSMauro Carvalho Chehab <LIRC_SET_REC_CARRIER_RANGE>` with the lower bound first and later call 4254f38fcaSMauro Carvalho Chehab :ref:`LIRC_SET_REC_CARRIER <LIRC_SET_REC_CARRIER>` with the upper bound. 4354f38fcaSMauro Carvalho Chehab 4454f38fcaSMauro Carvalho ChehabReturn Value 4554f38fcaSMauro Carvalho Chehab============ 4654f38fcaSMauro Carvalho Chehab 4754f38fcaSMauro Carvalho ChehabOn success 0 is returned, on error -1 and the ``errno`` variable is set 4854f38fcaSMauro Carvalho Chehabappropriately. The generic error codes are described at the 4954f38fcaSMauro Carvalho Chehab:ref:`Generic Error Codes <gen-errors>` chapter. 50