| .. -*- 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. |