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diff --git a/EmbeddedPkg/Include/Protocol/EmbeddedExternalDevice.h b/EmbeddedPkg/Include/Protocol/EmbeddedExternalDevice.h
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+++ b/EmbeddedPkg/Include/Protocol/EmbeddedExternalDevice.h
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+/** @file
+
+  Copyright (c) 2008-2009 Apple Inc. All rights reserved.<BR>
+
+  All rights reserved. This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __EMBEDDED_EXTERNAL_DEVICE_H__
+#define __EMBEDDED_EXTERNAL_DEVICE_H__
+
+//
+// Protocol GUID
+//
+#define EMBEDDED_EXTERNAL_DEVICE_PROTOCOL_GUID { 0x735F8C64, 0xD696, 0x44D0, { 0xBD, 0xF2, 0x44, 0x7F, 0xD0, 0x5A, 0x54, 0x06 }}
+
+//
+// Protocol interface structure
+//
+typedef struct _EMBEDDED_EXTERNAL_DEVICE EMBEDDED_EXTERNAL_DEVICE;
+
+//
+// Function Prototypes
+//
+typedef
+EFI_STATUS
+(EFIAPI *EMBEDDED_EXTERNAL_DEVICE_READ) (
+    IN  EMBEDDED_EXTERNAL_DEVICE  *This,
+    IN  UINTN                       Register,
+    IN  UINTN                       Length,
+    OUT VOID                        *Buffer
+    )
+/*++
+
+Routine Description:
+
+  Read a set of contiguous external device registers.
+
+Arguments:
+
+  This        - pointer to protocol
+  Offset      - starting register number
+  Length      - number of bytes to read
+  Buffer      - destination buffer
+  
+Returns:
+
+  EFI_SUCCESS - registers read successfully
+
+--*/
+;
+
+typedef
+EFI_STATUS
+(EFIAPI *EMBEDDED_EXTERNAL_DEVICE_WRITE) (
+    IN EMBEDDED_EXTERNAL_DEVICE *This,
+    IN UINTN                      Register,
+    IN UINTN                      Length,
+    IN VOID                       *Buffer
+    )
+/*++
+
+Routine Description:
+
+  Write to a set of contiguous external device registers.
+
+Arguments:
+
+  This        - pointer to protocol
+  Offset      - starting register number
+  Length      - number of bytes to write
+  Buffer      - source buffer
+  
+Returns:
+
+  EFI_SUCCESS - registers written successfully
+
+--*/
+;
+
+struct _EMBEDDED_EXTERNAL_DEVICE {
+  EMBEDDED_EXTERNAL_DEVICE_READ      Read;
+  EMBEDDED_EXTERNAL_DEVICE_WRITE     Write;
+};
+
+extern EFI_GUID gEmbeddedExternalDeviceProtocolGuid;
+
+#endif	// __EMBEDDED_EXTERNAL_DEVICE_H__