| .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later |
| |
| .. _lirc_set_wideband_receiver: |
| |
| ******************************** |
| ioctl LIRC_SET_WIDEBAND_RECEIVER |
| ******************************** |
| |
| Name |
| ==== |
| |
| LIRC_SET_WIDEBAND_RECEIVER - enable wide band receiver. |
| |
| Synopsis |
| ======== |
| |
| .. c:function:: int ioctl( int fd, LIRC_SET_WIDEBAND_RECEIVER, __u32 *enable ) |
| :name: LIRC_SET_WIDEBAND_RECEIVER |
| |
| Arguments |
| ========= |
| |
| ``fd`` |
| File descriptor returned by open(). |
| |
| ``enable`` |
| enable = 1 means enable wideband receiver, enable = 0 means disable |
| wideband receiver. |
| |
| |
| Description |
| =========== |
| |
| Some receivers are equipped with special wide band receiver which is |
| intended to be used to learn output of existing remote. This ioctl |
| allows enabling or disabling it. |
| |
| This might be useful of receivers that have otherwise narrow band receiver |
| that prevents them to be used with some remotes. Wide band receiver might |
| also be more precise. On the other hand its disadvantage it usually |
| reduced range of reception. |
| |
| .. note:: |
| |
| Wide band receiver might be implictly enabled if you enable |
| carrier reports. In that case it will be disabled as soon as you disable |
| carrier reports. Trying to disable wide band receiver while carrier |
| reports are active will do nothing. |
| |
| |
| 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 <gen-errors>` chapter. |
