[media] v4l2-ctrls: add control events

[pandora-kernel.git] / include / linux / videodev2.h

diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 8a4c309..baafe2f 100644 (file)
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -1791,6 +1791,7 @@ struct v4l2_streamparm {
 #define V4L2_EVENT_ALL                         0
 #define V4L2_EVENT_VSYNC                       1
 #define V4L2_EVENT_EOS                         2
+#define V4L2_EVENT_CTRL                                3
 #define V4L2_EVENT_PRIVATE_START               0x08000000
 
 /* Payload for V4L2_EVENT_VSYNC */
@@ -1799,21 +1800,45 @@ struct v4l2_event_vsync {
        __u8 field;
 } __attribute__ ((packed));
 
+/* Payload for V4L2_EVENT_CTRL */
+#define V4L2_EVENT_CTRL_CH_VALUE               (1 << 0)
+#define V4L2_EVENT_CTRL_CH_FLAGS               (1 << 1)
+
+struct v4l2_event_ctrl {
+       __u32 changes;
+       __u32 type;
+       union {
+               __s32 value;
+               __s64 value64;
+       };
+       __u32 flags;
+       __s32 minimum;
+       __s32 maximum;
+       __s32 step;
+       __s32 default_value;
+};
+
 struct v4l2_event {
        __u32                           type;
        union {
                struct v4l2_event_vsync vsync;
+               struct v4l2_event_ctrl  ctrl;
                __u8                    data[64];
        } u;
        __u32                           pending;
        __u32                           sequence;
        struct timespec                 timestamp;
-       __u32                           reserved[9];
+       __u32                           id;
+       __u32                           reserved[8];
 };
 
+#define V4L2_EVENT_SUB_FL_SEND_INITIAL (1 << 0)
+
 struct v4l2_event_subscription {
        __u32                           type;
-       __u32                           reserved[7];
+       __u32                           id;
+       __u32                           flags;
+       __u32                           reserved[5];
 };
 
 /*