FIFORXFLSH
outb(port + FIFOR, FIFO_ON|FIFORXFLSH); /* reset */
FIFO_ON|FIFODMA|FIFOTXFLSH|FIFORXFLSH|0x80);
OUTB(FIFOR, FIFO_ON | FIFODMA | FIFORXFLSH |
OUTB(FIFOR, FIFO_ON | FIFODMA | FIFORXFLSH |
OUTB(FIFOR, FIFO_ON | FIFODMA | FIFOTXFLSH | FIFORXFLSH |