forked from Minki/linux
699f19e3f1
The usage of the term "DVB" at the dvb API docs is confusing, as, right now, it can refer to either the European digital TV standard or to the subsystem. So, prefer calling it as "Digital TV" on most places, to avoid ambiguity. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
60 lines
1.1 KiB
ReStructuredText
60 lines
1.1 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
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.. _AUDIO_CHANNEL_SELECT:
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====================
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AUDIO_CHANNEL_SELECT
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====================
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Name
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----
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AUDIO_CHANNEL_SELECT
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.. attention:: This ioctl is deprecated
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Synopsis
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--------
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.. c:function:: int ioctl(int fd, AUDIO_CHANNEL_SELECT, struct *audio_channel_select)
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:name: AUDIO_CHANNEL_SELECT
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Arguments
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---------
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.. flat-table::
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:header-rows: 0
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:stub-columns: 0
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-
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- int fd
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- File descriptor returned by a previous call to open().
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-
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- audio_channel_select_t ch
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- Select the output format of the audio (mono left/right, stereo).
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Description
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-----------
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This ioctl is for Digital TV devices only. To control a V4L2 decoder use the
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V4L2 ``V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK`` control instead.
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This ioctl call asks the Audio Device to select the requested channel if
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possible.
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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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