-extern irqreturn_t (*amiga_default_handler[]) (int, void *, struct pt_regs *);
-extern int amiga_request_irq (unsigned int irq,
- irqreturn_t (*handler)(int, void *, struct pt_regs *),
- unsigned long flags, const char *devname,
- void *dev_id);
-extern void amiga_free_irq (unsigned int irq, void *dev_id);
-extern void amiga_enable_irq (unsigned int);
-extern void amiga_disable_irq (unsigned int);