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- .. -*- coding: utf-8; mode: rst -*-
- .. _AUDIO_CHANNEL_SELECT:
- ====================
- AUDIO_CHANNEL_SELECT
- ====================
- Name
- ----
- AUDIO_CHANNEL_SELECT
- .. attention:: This ioctl is deprecated
- Synopsis
- --------
- .. c:function:: int ioctl(int fd, AUDIO_CHANNEL_SELECT, struct *audio_channel_select)
- :name: AUDIO_CHANNEL_SELECT
- Arguments
- ---------
- .. flat-table::
- :header-rows: 0
- :stub-columns: 0
- -
- - int fd
- - File descriptor returned by a previous call to open().
- -
- - audio_channel_select_t ch
- - Select the output format of the audio (mono left/right, stereo).
- Description
- -----------
- This ioctl is for Digital TV devices only. To control a V4L2 decoder use the
- V4L2 ``V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK`` control instead.
- This ioctl call asks the Audio Device to select the requested channel if
- possible.
- 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.
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