V4L2_SUBDEV_IR_TX_FIFO_SERVICE_REQ
events = V4L2_SUBDEV_IR_TX_FIFO_SERVICE_REQ;
events |= V4L2_SUBDEV_IR_TX_FIFO_SERVICE_REQ;
if (events & V4L2_SUBDEV_IR_TX_FIFO_SERVICE_REQ)
events = V4L2_SUBDEV_IR_TX_FIFO_SERVICE_REQ;