V4L/DVB: V4L: Events: Add new ioctls for events
This patch adds a set of new ioctls to the V4L2 API. The ioctls conform to
V4L2 Events RFC version 2.3:
<URL:http://www.spinics.net/lists/linux-media/msg12033.html>
Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index e878056..0f627c5 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -1637,6 +1637,29 @@
};
/*
+ * E V E N T S
+ */
+
+struct v4l2_event {
+ __u32 type;
+ union {
+ __u8 data[64];
+ } u;
+ __u32 pending;
+ __u32 sequence;
+ struct timespec timestamp;
+ __u32 reserved[9];
+};
+
+struct v4l2_event_subscription {
+ __u32 type;
+ __u32 reserved[7];
+};
+
+#define V4L2_EVENT_ALL 0
+#define V4L2_EVENT_PRIVATE_START 0x08000000
+
+/*
* A D V A N C E D D E B U G G I N G
*
* NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS!
@@ -1758,6 +1781,9 @@
#define VIDIOC_QUERY_DV_PRESET _IOR('V', 86, struct v4l2_dv_preset)
#define VIDIOC_S_DV_TIMINGS _IOWR('V', 87, struct v4l2_dv_timings)
#define VIDIOC_G_DV_TIMINGS _IOWR('V', 88, struct v4l2_dv_timings)
+#define VIDIOC_DQEVENT _IOR('V', 89, struct v4l2_event)
+#define VIDIOC_SUBSCRIBE_EVENT _IOW('V', 90, struct v4l2_event_subscription)
+#define VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct v4l2_event_subscription)
/* Reminder: when adding new ioctls please add support for them to
drivers/media/video/v4l2-compat-ioctl32.c as well! */