7 unsigned long hi_ireqfreq
; /* Hz */
8 unsigned long hi_flags
; /* information */
9 unsigned short hi_hpet
;
10 unsigned short hi_timer
;
13 #define HPET_INFO_PERIODIC 0x0001 /* timer is periodic */
15 #define HPET_IE_ON _IO('h', 0x01) /* interrupt on */
16 #define HPET_IE_OFF _IO('h', 0x02) /* interrupt off */
17 #define HPET_INFO _IOR('h', 0x03, struct hpet_info)
18 #define HPET_EPI _IO('h', 0x04) /* enable periodic */
19 #define HPET_DPI _IO('h', 0x05) /* disable periodic */
20 #define HPET_IRQFREQ _IOW('h', 0x6, unsigned long) /* IRQFREQ usec */
22 #endif /* !__HPET__ */