1 files changed, 44 insertions, 0 deletions
diff --git a/public/sdk/inc/ntddtime.h b/public/sdk/inc/ntddtime.h
new file mode 100644
index 000000000..12a2c7e73
--- /dev/null
+++ b/public/sdk/inc/ntddtime.h
@@ -0,0 +1,44 @@
+/*++ BUILD Version: 0001    // Increment this if a change has global effects
+
+Copyright (c) 1992  Microsoft Corporation
+
+Module Name:
+
+    ntddtime.h
+
+Abstract:
+
+    This include file defines all constants and types for
+    accessing an NT wave device.
+
+Author:
+
+    Robin Speed (RobinSp) 30-Jan-92
+
+Revision History:
+
+--*/
+#define FILE_DEVICE_TIME 0x00000026
+
+
+//
+// Timer IOCTLs
+//
+
+#define IOCTL_TIMER_SET_TIMER_EVENT   CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0001, METHOD_BUFFERED, FILE_WRITE_DATA)
+#define IOCTL_TIMER_GET_TIME          CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0002, METHOD_NEITHER, FILE_WRITE_DATA)
+#define IOCTL_TIMER_GET_DEV_CAPS      CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0003, METHOD_BUFFERED, FILE_WRITE_DATA)
+#define IOCTL_TIMER_BEGIN_MIN_PERIOD  CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0004, METHOD_NEITHER, FILE_WRITE_DATA)
+#define IOCTL_TIMER_END_MIN_PERIOD    CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0005, METHOD_BUFFERED, FILE_WRITE_DATA)
+#define IOCTL_TIMER_RESET             CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0006, METHOD_BUFFERED, FILE_WRITE_DATA)
+#define IOCTL_TIMER_RESET_EVENT       CTL_CODE(FILE_DEVICE_TIME, FILE_DEVICE_TIME + 0x0007, METHOD_NEITHER, FILE_WRITE_DATA)
+
+#define DD_TIMER_DEVICE_NAME_U     L"\\Device\\Timer"
+
+#define IO_TIMER_INCREMENT 8
+
+typedef struct {
+    ULONG EventTime;                      // Time in ms for event
+    ULONG EventId;                        // Id (cannot be 0)
+    LARGE_INTEGER EventTicks;             // Driver use (not seen by caller)
+} TIMER_DD_SET_EVENT, *PTIMER_DD_SET_EVENT;