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 ******************************** 7 ioctl LIRC_SET_WIDEBAND_RECEIVER 8 ******************************** 9 10 Name 11 ==== 12 13 LIRC_SET_WIDEBAND_RECEIVER - enable wide band receiver. 14 15 Synopsis 16 ======== 17 18 .. c:macro:: LIRC_SET_WIDEBAND_RECEIVER 19 20 ``int ioctl(int fd, LIRC_SET_WIDEBAND_RECEIVER, __u32 *enable)`` 21 22 Arguments 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 32 Description 33 =========== 34 35 Some receivers are equipped with special wide band receiver which is 36 intended to be used to learn output of existing remote. This ioctl 37 allows enabling or disabling it. 38 39 This might be useful of receivers that have otherwise narrow band receiver 40 that prevents them to be used with some remotes. Wide band receiver might 41 also be more precise. On the other hand its disadvantage it usually 42 reduced 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 51 Return Value 52 ============ 53 54 On success 0 is returned, on error -1 and the ``errno`` variable is set 55 appropriately. The generic error codes are described at the 56 :ref:`Generic Error Codes <gen-errors>` chapter.
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