Add missing module for duet package.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5088 6f19259b-4bc3-4df7-8a09-765794883524

DuetPkg/FvbRuntimeService/FileIo.h

@@ -0,0 +1,58 @@
+/**@file
+Copyright (c) 2007, Intel Corporation                                                         
+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.             
+
+Module Name:
+
+  FileIo.h
+  
+Abstract:
+
+  File operation for Firmware volume block driver
+
+**/
+#ifndef _FW_BLOCK_SERVICE_FILE_IO_H
+#define _FW_BLOCK_SERVICE_FILE_IO_H
+
+#include "FwBlockService.h"
+
+EFI_STATUS
+FileWrite (
+  IN EFI_FILE  *File,
+  IN UINTN     Offset,
+  IN UINTN     Buffer,
+  IN UINTN     Size
+  );
+
+EFI_STATUS
+CheckStore (
+  IN  EFI_HANDLE                 SimpleFileSystemHandle,
+  IN  UINT32                     VolumeId,
+  OUT EFI_DEVICE_PATH_PROTOCOL   **Device
+  );
+
+EFI_STATUS
+CheckStoreExists (
+  IN  EFI_DEVICE_PATH_PROTOCOL   *Device
+  );
+
+EFI_STATUS
+FileOpen (
+  IN  EFI_DEVICE_PATH_PROTOCOL   *Device,
+  IN  CHAR16                     *MappedFile,
+  OUT EFI_FILE                   **File,
+  IN  UINT64                     OpenMode
+  );
+
+VOID
+FileClose (
+  IN  EFI_FILE                   *File
+  );
+
+#endif // _FW_BLOCK_SERVICE_FILE_IO_H