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56 lines
1.5 KiB
56 lines
1.5 KiB
.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later |
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.. c:namespace:: RC |
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.. _lirc_set_wideband_receiver: |
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******************************** |
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ioctl LIRC_SET_WIDEBAND_RECEIVER |
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******************************** |
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Name |
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==== |
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LIRC_SET_WIDEBAND_RECEIVER - enable wide band receiver. |
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Synopsis |
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======== |
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.. c:macro:: LIRC_SET_WIDEBAND_RECEIVER |
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``int ioctl(int fd, LIRC_SET_WIDEBAND_RECEIVER, __u32 *enable)`` |
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Arguments |
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========= |
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``fd`` |
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File descriptor returned by open(). |
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``enable`` |
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enable = 1 means enable wideband receiver, enable = 0 means disable |
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wideband receiver. |
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Description |
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=========== |
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Some receivers are equipped with special wide band receiver which is |
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intended to be used to learn output of existing remote. This ioctl |
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allows enabling or disabling it. |
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This might be useful of receivers that have otherwise narrow band receiver |
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that prevents them to be used with some remotes. Wide band receiver might |
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also be more precise. On the other hand its disadvantage it usually |
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reduced range of reception. |
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.. note:: |
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Wide band receiver might be implictly enabled if you enable |
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carrier reports. In that case it will be disabled as soon as you disable |
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carrier reports. Trying to disable wide band receiver while carrier |
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reports are active will do nothing. |
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Return Value |
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============ |
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On success 0 is returned, on error -1 and the ``errno`` variable is set |
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appropriately. The generic error codes are described at the |
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:ref:`Generic Error Codes <gen-errors>` chapter.
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