27 lines · c
1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _UAPI__HPET__3#define _UAPI__HPET__4 5#include <linux/compiler.h>6 7 8struct hpet_info {9 unsigned long hi_ireqfreq; /* Hz */10 unsigned long hi_flags; /* information */11 unsigned short hi_hpet;12 unsigned short hi_timer;13};14 15#define HPET_INFO_PERIODIC 0x0010 /* periodic-capable comparator */16 17#define HPET_IE_ON _IO('h', 0x01) /* interrupt on */18#define HPET_IE_OFF _IO('h', 0x02) /* interrupt off */19#define HPET_INFO _IOR('h', 0x03, struct hpet_info)20#define HPET_EPI _IO('h', 0x04) /* enable periodic */21#define HPET_DPI _IO('h', 0x05) /* disable periodic */22#define HPET_IRQFREQ _IOW('h', 0x6, unsigned long) /* IRQFREQ usec */23 24#define MAX_HPET_TBS 8 /* maximum hpet timer blocks */25 26#endif /* _UAPI__HPET__ */27