int subdev_8255_init_irq(struct comedi_device *dev, struct comedi_subdevice *s,
int (*io) (int, int, int, unsigned long),
unsigned long iobase);
-void subdev_8255_cleanup(struct comedi_device *dev, struct comedi_subdevice *s);
void subdev_8255_interrupt(struct comedi_device *dev,
struct comedi_subdevice *s);