6.2.2.16. VIDEO_TRY_COMMAND¶
6.2.2.16.2. Synopsis¶
-
int
ioctl(int fd, VIDEO_TRY_COMMAND, struct video_command *cmd)¶
6.2.2.16.3. Arguments¶
| int fd | File descriptor returned by a previous call to open(). |
| int request | Equals VIDEO_TRY_COMMAND for this command. |
| struct video_command *cmd | Try a decoder command. |
6.2.2.16.4. Description¶
This ioctl is obsolete. Do not use in new drivers. For V4L2 decoders this ioctl has been replaced by the VIDIOC_TRY_DECODER_CMD ioctl.
This ioctl tries a decoder command. The video_command struct is a
subset of the v4l2_decoder_cmd struct, so refer to the
VIDIOC_TRY_DECODER_CMD documentation
for more information.
6.2.2.16.5. 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.