#ifndef	__HPET__#define	__HPET__ 1struct hpet_info {	unsigned long hi_ireqfreq;	/* Hz */	unsigned long hi_flags;	/* information */	unsigned short hi_hpet;	unsigned short hi_timer;};#define	HPET_INFO_PERIODIC	0x0001	/* timer is periodic */#define	HPET_IE_ON	_IO('h', 0x01)	/* interrupt on */#define	HPET_IE_OFF	_IO('h', 0x02)	/* interrupt off */#define	HPET_INFO	_IOR('h', 0x03, struct hpet_info)#define	HPET_EPI	_IO('h', 0x04)	/* enable periodic */#define	HPET_DPI	_IO('h', 0x05)	/* disable periodic */#define	HPET_IRQFREQ	_IOW('h', 0x6, unsigned long)	/* IRQFREQ usec */#endif				/* !__HPET__ */