v4l2_device_for_each_subdev
v4l2_device_for_each_subdev(sd, &cx->v4l2_dev) {
v4l2_device_for_each_subdev(sd, &dev->v4l2_dev) {
v4l2_device_for_each_subdev(sd, &itv->v4l2_dev) {
v4l2_device_for_each_subdev(sd, &hdw->v4l2_dev)
v4l2_device_for_each_subdev(sd, &hdw->v4l2_dev) {
v4l2_device_for_each_subdev(sd, &hdw->v4l2_dev) {
v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) {