From f7e8fec2ff212d5e7e0343b524ac7751c15527c5 Mon Sep 17 00:00:00 2001
From: Waldemar Porscha <waldemar.porscha@sap.com>
Date: Fri, 1 Apr 2022 18:04:01 +0200
Subject: [PATCH] GroupObjects can communicate internally - GroupObjects use
 callback infrastructure also during write to bus - external and internal
 write of a GO can be handled identically - needs #define INTERNAL_GROUPOBJECT

---
 src/knx/bau_systemB_device.cpp | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/knx/bau_systemB_device.cpp b/src/knx/bau_systemB_device.cpp
index 37289af..8821744 100644
--- a/src/knx/bau_systemB_device.cpp
+++ b/src/knx/bau_systemB_device.cpp
@@ -69,8 +69,15 @@ void BauSystemBDevice::sendNextGroupTelegram()
         if (flag != ReadRequest && flag != WriteRequest)
             continue;
 
+#ifdef INTERNAL_GROUPOBJECT
+        if (flag == WriteRequest)
+            GroupObject::processClassCallback(go);
+#endif
         if (!go.communicationEnable())
+        {
+            go.commFlag(Ok);
             continue;
+        }
 
         SecurityControl goSecurity;
         goSecurity.toolAccess = false; // Secured group communication never uses the toolkey. ETS knows all keys, also the group keys.
@@ -113,7 +120,10 @@ void BauSystemBDevice::updateGroupObject(GroupObject & go, uint8_t * data, uint8
 
     memcpy(goData, data, length);
 
-    go.commFlag(Updated);
+#ifdef INTERNAL_GROUPOBJECT
+    if (go.commFlag() != WriteRequest)
+    {
+#endif
 #ifdef SMALL_GROUPOBJECT
     GroupObject::processClassCallback(go);
 #else
@@ -121,6 +131,10 @@ void BauSystemBDevice::updateGroupObject(GroupObject & go, uint8_t * data, uint8
     if (handler)
         handler(go);
 #endif
+#ifdef INTERNAL_GROUPOBJECT
+    }
+#endif
+    go.commFlag(Updated);
 }
 
 bool BauSystemBDevice::configured()