DAS6402_STATUS_REG
outb(DAS6402_STATUS_W_EXTEND, dev->iobase + DAS6402_STATUS_REG);
outb(DAS6402_STATUS_W_EXTEND | val, dev->iobase + DAS6402_STATUS_REG);
outb(val, dev->iobase + DAS6402_STATUS_REG);
DAS6402_STATUS_W_CLRXIN, dev->iobase + DAS6402_STATUS_REG);
outb(DAS6402_STATUS_W_CLRINT, dev->iobase + DAS6402_STATUS_REG);
status = inb(dev->iobase + DAS6402_STATUS_REG);
status = inb(dev->iobase + DAS6402_STATUS_REG);