DT2814_CSR
outb(chan, dev->iobase + DT2814_CSR);
outb(chan | DT2814_ENB | (trigvar << 5), dev->iobase + DT2814_CSR);
status = inb(dev->iobase + DT2814_CSR);
outb(status & DT2814_CHANMASK, dev->iobase + DT2814_CSR);
status = inb(dev->iobase + DT2814_CSR);
outb(status & DT2814_CHANMASK, dev->iobase + DT2814_CSR);
outb(0, dev->iobase + DT2814_CSR);
status = inb(dev->iobase + DT2814_CSR);
status = inb(dev->iobase + DT2814_CSR);