RX_FIFO_HALF_FULL
(fifo_status & RX_FIFO_HALF_FULL)) {
RX_FIFO_HALF_FULL) ||
control_rx_irq_watermark(c, RX_FIFO_HALF_FULL);
control_rx_irq_watermark(dev, RX_FIFO_HALF_FULL);