V4L2_SUBDEV_IR_RX_NOTIFY
v4l2_subdev_notify(sd, V4L2_SUBDEV_IR_RX_NOTIFY, &events);
case V4L2_SUBDEV_IR_RX_NOTIFY: /* Possibly called in an IRQ context */
v4l2_subdev_notify(sd, V4L2_SUBDEV_IR_RX_NOTIFY, &events);