269 struct v4l2_ctrl {  struct
273 	struct v4l2_ctrl_handler *handler;  argument
274 	struct v4l2_ctrl **cluster;  argument
292 	const struct v4l2_ctrl_ops *ops;  argument
293 	const struct v4l2_ctrl_type_ops *type_ops;  argument
296 	enum v4l2_ctrl_type type;  argument
320 	union v4l2_ctrl_ptr p_def;  argument
321 	union v4l2_ctrl_ptr p_min;  argument
322 	union v4l2_ctrl_ptr p_max;  argument
323 	union v4l2_ctrl_ptr p_new;  argument
324 	union v4l2_ctrl_ptr p_cur;  argument