1 files changed, 25 insertions, 0 deletions

diff --git a/include/uapi/linux/hpet.h b/include/uapi/linux/hpet.h
new file mode 100644
index 000000000000..8af3c70abc8c
--- /dev/null
+++ b/include/uapi/linux/hpet.h
@@ -0,0 +1,25 @@
+#ifndef _UAPI__HPET__
+#define _UAPI__HPET__
+
+#include <linux/compiler.h>
+
+
+struct hpet_info {
+        unsigned long hi_ireqfreq;      /* Hz */
+        unsigned long hi_flags; /* information */
+        unsigned short hi_hpet;
+        unsigned short hi_timer;
+};
+
+#define HPET_INFO_PERIODIC      0x0010  /* periodic-capable comparator */
+
+#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 */
+
+#define MAX_HPET_TBS    8               /* maximum hpet timer blocks */
+
+#endif /* _UAPI__HPET__ */