diff --git a/common/haswell_shared/hw-gfx-gma-connectors-ddi.ads b/common/haswell_shared/hw-gfx-gma-connectors-ddi.ads
index 465e7eb..4ccd995 100644
--- a/common/haswell_shared/hw-gfx-gma-connectors-ddi.ads
+++ b/common/haswell_shared/hw-gfx-gma-connectors-ddi.ads
@@ -1,5 +1,5 @@
 --
--- Copyright (C) 2015 secunet Security Networks AG
+-- Copyright (C) 2015-2017 secunet Security Networks AG
 --
 -- This program is free software; you can redistribute it and/or modify
 -- it under the terms of the GNU General Public License as published by
@@ -17,6 +17,8 @@
 private package HW.GFX.GMA.Connectors.DDI
 is
 
+   procedure Initialize;
+
    procedure Pre_On
      (Port_Cfg : in     Port_Config;
       PLL_Hint : in     Word32;
@@ -26,4 +28,8 @@
 
    procedure Off (Port : Digital_Port);
 
+private
+   type Buf_Trans_Range is range 0 .. 19;
+   type Buf_Trans_Array is array (Buf_Trans_Range) of Word32;
+
 end HW.GFX.GMA.Connectors.DDI;