1 files changed, 47 insertions, 0 deletions
diff --git a/public/sdk/inc/ntddnull.h b/public/sdk/inc/ntddnull.h
new file mode 100644
index 000000000..c39c6ade2
--- /dev/null
+++ b/public/sdk/inc/ntddnull.h
@@ -0,0 +1,47 @@
+/*++ BUILD Version: 0001    // Increment this if a change has global effects
+
+Copyright (c) 1990-1993  Microsoft Corporation
+
+Module Name:
+
+    ntddnull.h
+
+Abstract:
+
+    This is the include file that defines all constants and types for
+    accessing the Null device.
+
+Author:
+
+    Steve Wood (stevewo) 27-May-1990
+
+Revision History:
+
+--*/
+
+//
+// Device Name - this string is the name of the device.  It is the name
+// that should be passed to NtOpenFile when accessing the device.
+//
+// Note:  For devices that support multiple units, it should be suffixed
+//        with the Ascii representation of the unit number.
+//
+
+#define DD_NULL_DEVICE_NAME "\\Device\\Null"
+
+
+//
+// NtDeviceIoControlFile IoControlCode values for this device.
+//
+// Warning:  Remember that the low two bits of the code specify how the
+//           buffers are passed to the driver!
+//
+
+#define IOCTL_NULL_BASE                 FILE_DEVICE_NULL
+
+
+//
+// NtDeviceIoControlFile InputBuffer/OutputBuffer record structures for
+// this device.
+//
+