Index: firmware/App/Services/DDInterface.h
===================================================================
diff -u -r3518e8a088c32e75c0c8960d5e629a7401095feb -r395522dffef1348e176564925656012f529c1910
--- firmware/App/Services/DDInterface.h	(.../DDInterface.h)	(revision 3518e8a088c32e75c0c8960d5e629a7401095feb)
+++ firmware/App/Services/DDInterface.h	(.../DDInterface.h)	(revision 395522dffef1348e176564925656012f529c1910)
@@ -1,24 +1,25 @@
 /**************************************************************************
 *
-* Copyright (c) 2024-2024 Diality Inc. - All Rights Reserved.
+* Copyright (c) 2024-2026 Diality Inc. - All Rights Reserved.
 *
 * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
 * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
 *
 * @file    DDInterface.h
 *
-* @author  (last)      Sean
-* @date    (last)      30-Jul-2024
+* @author  (last)      Sean Nash
+* @date    (last)      16-May-2025
 *
-* @author  (original)  Sean
-* @date    (original)  30-Jul-2024
+* @author  (original)  Sean Nash
+* @date    (original)  01-Aug-2024
 *
 ***************************************************************************/
 
 #ifndef __DD_INTERFACE_H__
 #define __DD_INTERFACE_H__
 
 #include "TDCommon.h"
+#include "TDDefs.h"
 #include "DDDefs.h"
 
 /**
@@ -31,7 +32,7 @@
  */
 
 // ********** public definitions **********
-
+
 /// DD command response data record structure.
 typedef struct
 {
@@ -43,14 +44,23 @@
 // ********** public function prototypes **********
 
 void initDDInterface( void );
+void resetDDInterface( void );
 
 void execDDInterfaceMonitor( void );
 
 DD_OP_MODE_T getDDOpMode( void );
-U32 getDDSubMode( void );
-
-void setDDOpMode( U32 opMode, U32 subMode );
+U32  getDDSubMode( void );
+F32  getDialysatePressure( void );
 
+BOOL setDDOpMode( MESSAGE_T *message );
+BOOL setDialysatePressure( MESSAGE_T *message );
+
+void cmdStartGenerateDialysate( F32 qd, F32 quf, F32 dialTemp, BOOL bypass, ACID_CONCENTRATE_TYPE_T acid, BICARB_CONCENTRATE_TYPE_T bicarb );
+void cmdChangeQd( F32 qd );
+void cmdChangeQuf( F32 quf );
+void cmdBypassDialyzer( BOOL bypass );
+void cmdStopGenerateDialysate( void );
+
 void handleDDCommandResponse( DD_CMD_RESPONSE_T *ddCmdRespPtr );
 BOOL getDDCommandResponse( U32 commandID, DD_CMD_RESPONSE_T *cmdRespPtr );