# Pastebin dbJUnWPU
struct v4l2_event {
        __u32                           type;
        char __pad[sizeof(time_t) - sizeof(long)];
        union {
                struct v4l2_event_vsync         vsync;
                struct v4l2_event_ctrl          ctrl;
                struct v4l2_event_frame_sync    frame_sync;
                struct v4l2_event_src_change    src_change;
                struct v4l2_event_motion_det    motion_det;
                __u8                            data[64];
        } u;
        __u32                           pending;
        __u32                           sequence;
#ifdef __KERNEL__
        struct {
                __s64 tv_sec;
                __s64 tv_usec;
        } timestamp;
#else
        struct timespec                 timestamp;
#endif
        __u32                           id;
        __u32                           reserved[8];
};

#ifdef __KERNEL__
/*
 * User space will see either 64-bit or 32-bit time_t, which changes
 * the v4l2_event layout. Both are y2038 safe because the timestamps
 * are in monotonic time, but the kernel has to handle both cases.
 */
struct v4l2_event32 {
        __u32                           type;
        union {
                __u8                    data[64];
        } u;
        __u32                           pending;
        __u32                           sequence;
        struct {
                __s32                   tv_sec;
                __s32                   tv_nsec;
        }                               timestamp;

        __u32                           id;
        __u32                           reserved[8];
};
#endif