6.3.2.12. AUDIO_CHANNEL_SELECT¶
6.3.2.12.2. Synopsis¶
-
int
ioctl(int fd, AUDIO_CHANNEL_SELECT, struct *audio_channel_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.