DAS16_CTRL_REG
outb(devpriv->ctrl_reg, dev->iobase + DAS16_CTRL_REG);
outb(devpriv->ctrl_reg, dev->iobase + DAS16_CTRL_REG);
outb(devpriv->ctrl_reg, dev->iobase + DAS16_CTRL_REG);
outb(0, dev->iobase + DAS16_CTRL_REG);