6.3.2.12. AUDIO_CHANNEL_SELECT¶
6.3.2.12.2. Synopsis¶
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AUDIO_CHANNEL_SELECT¶
int ioctl(int fd, AUDIO_CHANNEL_SELECT, struct audio_channel_select *select)
6.3.2.12.3. Arguments¶
| 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). |
6.3.2.12.4. 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.
6.3.2.12.5. 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
Generic Error Codes chapter.