v4l2_ctrl_ref 225 include/media/v4l2-ctrls.h struct v4l2_ctrl_ref *next; v4l2_ctrl_ref 254 include/media/v4l2-ctrls.h struct v4l2_ctrl_ref *cached; v4l2_ctrl_ref 255 include/media/v4l2-ctrls.h struct v4l2_ctrl_ref **buckets;