6.2.2.18. VIDEO_STILLPICTURE¶
6.2.2.18.2. Synopsis¶
- 
VIDEO_STILLPICTURE¶ 
int ioctl(fd, VIDEO_STILLPICTURE, struct video_still_picture *sp)
6.2.2.18.3. Arguments¶
int fd  | 
File descriptor returned by a previous call to   | 
int request  | 
Equals VIDEO_STILLPICTURE for this command.  | 
Pointer to a location where an I-frame and size is stored.  | 
6.2.2.18.4. Description¶
This ioctl call asks the Video Device to display a still picture (I-frame). The input data shall contain an I-frame. If the pointer is NULL, then the current displayed still picture is blanked.
6.2.2.18.5. 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.