irq.h

开发板外设接口实验（1～7）

/*
 *	irq.h    -     demo of irq handler api
 *	
 *	Author: 	li ming <[e-mail]>
 *	Date:		2005-6-12
 *	Copyleft:	http://www.lumit.org
 */

void clear_irq_pending(void);

int unmask_irq(int irq_num);

void do_irq(void);

void install_irq_handler(void (*isr)(void));

int request_irq( unsigned int irq, void (*handler)(void) );

int free_irq( unsigned int irq, void (*handler)(void) );