[media] v4l: events: Define V4L2_EVENT_FRAME_SYNC

Define a frame sync event to tell user space when the reception of a frame
starts.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sakari Ailus 2011-07-18 08:40:03 -03:00 committed by Mauro Carvalho Chehab
parent c9f88aa976
commit eab00a0da2
3 changed files with 47 additions and 3 deletions

View file

@ -2006,6 +2006,7 @@ struct v4l2_streamparm {
#define V4L2_EVENT_VSYNC 1
#define V4L2_EVENT_EOS 2
#define V4L2_EVENT_CTRL 3
#define V4L2_EVENT_FRAME_SYNC 4
#define V4L2_EVENT_PRIVATE_START 0x08000000
/* Payload for V4L2_EVENT_VSYNC */
@ -2032,12 +2033,17 @@ struct v4l2_event_ctrl {
__s32 default_value;
};
struct v4l2_event_frame_sync {
__u32 frame_sequence;
};
struct v4l2_event {
__u32 type;
union {
struct v4l2_event_vsync vsync;
struct v4l2_event_ctrl ctrl;
__u8 data[64];
struct v4l2_event_vsync vsync;
struct v4l2_event_ctrl ctrl;
struct v4l2_event_frame_sync frame_sync;
__u8 data[64];
} u;
__u32 pending;
__u32 sequence;