Symbol: IIR_FIFO_MASK
sys/dev/uart/uart_dev_ns8250.c
955
if (!(uart_getreg(bas, REG_IIR) & IIR_FIFO_MASK)) {
usr.sbin/bhyve/uart_emul.c
364
iir = (sc->fcr & FCR_ENABLE) ? IIR_FIFO_MASK : 0;