v4l2_ctrl_hdr10_mastering_display
struct v4l2_ctrl_hdr10_mastering_display mastering;
struct v4l2_ctrl_hdr10_mastering_display p_hdr10_mastering = {
elem_size = sizeof(struct v4l2_ctrl_hdr10_mastering_display);
struct v4l2_ctrl_hdr10_mastering_display *p_hdr10_mastering;
struct v4l2_ctrl_hdr10_mastering_display *p_hdr10_mastering;
struct v4l2_ctrl_hdr10_mastering_display __user *p_hdr10_mastering_display;