+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);