-extern int um_request_irq(unsigned int irq, int fd, int type,
- void (*handler)(int, void *, struct pt_regs *),
- unsigned long irqflags, const char * devname,
- void *dev_id);
-
-struct irqaction;
-struct pt_regs;
-int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
-