diff --git a/include/datIf.h b/include/datIf.h
index 42e442c..92154fa 100644
--- a/include/datIf.h
+++ b/include/datIf.h
@@ -134,7 +134,8 @@
 
 
 
-
+class DownloadThread;
+class hwinf;
 class T_datif : public QObject
 {
     Q_OBJECT    
@@ -165,13 +166,14 @@ class T_datif : public QObject
     T_prot *myDCIF;
     QTimer *datif_trigger;
     uint8_t selectedSlaveAddr;
+    hwinf *m_hw = nullptr;
 
 private slots:
     char datif_cycleSend();
     void StoredRecData();
 
 public:
-    T_datif(QObject *parent = nullptr);
+    T_datif(hwinf *hw, QObject *parent = nullptr);
 
     void resetChain(void);
     char isPortOpen(void);