1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
4 .. _lirc_set_wideband_receiver:
6 ********************************
7 ioctl LIRC_SET_WIDEBAND_RECEIVER
8 ********************************
13 LIRC_SET_WIDEBAND_RECEIVER - enable wide band receiver.
18 .. c:macro:: LIRC_SET_WIDEBAND_RECEIVER
20 ``int ioctl(int fd, LIRC_SET_WIDEBAND_RECEIVER, __u32 *enable)``
26 File descriptor returned by open().
29 enable = 1 means enable wideband receiver, enable = 0 means disable
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.
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.
46 Wide band receiver might be implictly 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.
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.