928 	struct v4l2_ext_control xctrl;  in uvc_ioctl_g_ctrl()  local
931 	memset(&xctrl, 0, sizeof(xctrl));  in uvc_ioctl_g_ctrl()
932 	xctrl.id = ctrl->id;  in uvc_ioctl_g_ctrl()
938 	ret = uvc_ctrl_get(chain, &xctrl);  in uvc_ioctl_g_ctrl()
943 	ctrl->value = xctrl.value;  in uvc_ioctl_g_ctrl()
952 	struct v4l2_ext_control xctrl;  in uvc_ioctl_s_ctrl()  local
955 	memset(&xctrl, 0, sizeof(xctrl));  in uvc_ioctl_s_ctrl()
956 	xctrl.id = ctrl->id;  in uvc_ioctl_s_ctrl()
957 	xctrl.value = ctrl->value;  in uvc_ioctl_s_ctrl()
963 	ret = uvc_ctrl_set(chain, &xctrl);  in uvc_ioctl_s_ctrl()
969 	ret = uvc_ctrl_commit(handle, &xctrl, 1);  in uvc_ioctl_s_ctrl()
973 	ctrl->value = xctrl.value;  in uvc_ioctl_s_ctrl()