DT2811_ADCSR_ADMODE
outb(DT2811_ADCSR_ADMODE(0), dev->iobase + DT2811_ADCSR_REG);
mode = DT2811_ADCSR_ADMODE(1);
mode = DT2811_ADCSR_ADMODE(2);
mode = DT2811_ADCSR_ADMODE(3);
outb(DT2811_ADCSR_ADMODE(0), dev->iobase + DT2811_ADCSR_REG);
outb(DT2811_ADCSR_ADMODE(0) | DT2811_ADCSR_CLRERROR,