1.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later 2.. c:namespace:: RC 3 4.. _lirc_set_wideband_receiver: 5 6******************************** 7ioctl LIRC_SET_WIDEBAND_RECEIVER 8******************************** 9 10Name 11==== 12 13LIRC_SET_WIDEBAND_RECEIVER - enable wide band receiver. 14 15Synopsis 16======== 17 18.. c:macro:: LIRC_SET_WIDEBAND_RECEIVER 19 20``int ioctl(int fd, LIRC_SET_WIDEBAND_RECEIVER, __u32 *enable)`` 21 22Arguments 23========= 24 25``fd`` 26 File descriptor returned by open(). 27 28``enable`` 29 enable = 1 means enable wideband receiver, enable = 0 means disable 30 wideband receiver. 31 32Description 33=========== 34 35Some receivers are equipped with special wide band receiver which is 36intended to be used to learn output of existing remote. This ioctl 37allows enabling or disabling it. 38 39This might be useful of receivers that have otherwise narrow band receiver 40that prevents them to be used with some remotes. Wide band receiver might 41also be more precise. On the other hand its disadvantage it usually 42reduced range of reception. 43 44.. note:: 45 46 Wide band receiver might be implicitly enabled if you enable 47 carrier reports. In that case it will be disabled as soon as you disable 48 carrier reports. Trying to disable wide band receiver while carrier 49 reports are active will do nothing. 50 51Return Value 52============ 53 54On success 0 is returned, on error -1 and the ``errno`` variable is set 55appropriately. The generic error codes are described at the 56:ref:`Generic Error Codes <gen-errors>` chapter. 57