diff --git a/aqhome/msg/endpoint_log.c b/aqhome/msg/endpoint_log.c
index 78ce8dc..6c95f5f 100644
--- a/aqhome/msg/endpoint_log.c
+++ b/aqhome/msg/endpoint_log.c
@@ -50,7 +50,6 @@ static void _writeToLogFile(const char *filename, const char *txt);
 
 GWEN_MSG_ENDPOINT *AQH_LogEndpoint_new(const char *filename, int groupId)
 {
-  int fd;
   GWEN_MSG_ENDPOINT *ep;
   AQH_MSG_ENDPOINT_LOG *xep;
 
@@ -104,8 +103,6 @@ void _run(GWEN_MSG_ENDPOINT *ep)
 void _logMessage(GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg)
 {
   AQH_MSG_ENDPOINT_LOG *xep;
-  const uint8_t *ptr;
-  uint8_t len;
   uint8_t msgType;
   int msgIsValid;
   GWEN_BUFFER *dbuf;
@@ -120,25 +117,28 @@ void _logMessage(GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msg)
   ti=NULL;
 
   msgIsValid=(AQH_NodeMsg_IsChecksumValid(msg) && AQH_NodeMsg_IsMsgComplete(msg));
-  ptr=GWEN_Msg_GetConstBuffer(msg);
-  len=GWEN_Msg_GetBytesInBuffer(msg);
   msgType=AQH_NodeMsg_GetMsgType(msg);
 
-  switch(msgType) {
-    case AQH_MSG_TYPE_PING:          AQH_PingMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_PONG:          AQH_PongMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_COMSENDSTATS:  AQH_SendStatsMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_COMRECVSTATS:  AQH_RecvStatsMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_TWIBUSMEMBER:  AQH_NodeMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_DEBUG:         AQH_NodeMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_VALUE:         AQH_ValueMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_VALUE2:        AQH_Value2Msg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_NEED_ADDRESS:  AQH_NeedAddrMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_CLAIM_ADDRESS: AQH_ClaimAddrMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_HAVE_ADDRESS:  AQH_HaveAddrMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_DENY_ADDRESS:  AQH_DenyAddrMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    case AQH_MSG_TYPE_DEVICE:        AQH_DeviceMsg_DumpToBuffer(msg, dbuf, "received"); break;
-    default:                         AQH_NodeMsg_DumpToBuffer(msg, dbuf, "received"); break;
+  if (msgIsValid) {
+    switch(msgType) {
+      case AQH_MSG_TYPE_PING:          AQH_PingMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_PONG:          AQH_PongMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_COMSENDSTATS:  AQH_SendStatsMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_COMRECVSTATS:  AQH_RecvStatsMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_TWIBUSMEMBER:  AQH_NodeMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_DEBUG:         AQH_NodeMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_VALUE:         AQH_ValueMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_VALUE2:        AQH_Value2Msg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_NEED_ADDRESS:  AQH_NeedAddrMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_CLAIM_ADDRESS: AQH_ClaimAddrMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_HAVE_ADDRESS:  AQH_HaveAddrMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_DENY_ADDRESS:  AQH_DenyAddrMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      case AQH_MSG_TYPE_DEVICE:        AQH_DeviceMsg_DumpToBuffer(msg, dbuf, "received"); break;
+      default:                         AQH_NodeMsg_DumpToBuffer(msg, dbuf, "received"); break;
+    }
+  }
+  else {
+    AQH_NodeMsg_DumpToBuffer(msg, dbuf, "(invalid) received");
   }
   _writeToLogFile(xep->filename, GWEN_Buffer_GetStart(dbuf));
   GWEN_Buffer_free(dbuf);
diff --git a/aqhome/msg/endpoint_tty.c b/aqhome/msg/endpoint_tty.c
index ea3b952..29d27bc 100644
--- a/aqhome/msg/endpoint_tty.c
+++ b/aqhome/msg/endpoint_tty.c
@@ -167,7 +167,7 @@ int _handleReadable(GWEN_MSG_ENDPOINT *ep, GWEN_UNUSED GWEN_MSG_ENDPOINT_MGR *em
       /* complete msg received, add to list */
       if (!AQH_NodeMsg_IsChecksumValid(msg)) {
         DBG_ERROR(AQH_LOGDOMAIN, "Invalid checksum, discarding message");
-        GWEN_Text_DumpString(GWEN_Msg_GetBuffer(msg), GWEN_Msg_GetBytesInBuffer(msg), 6);
+        GWEN_Text_DumpString((const char*) GWEN_Msg_GetBuffer(msg), GWEN_Msg_GetBytesInBuffer(msg), 6);
         GWEN_MsgEndpoint_SetCurrentlyReceivedMsg(ep, NULL);
         rv=GWEN_MsgEndpoint_DiscardInput(ep);
         if (rv<0) {
@@ -254,11 +254,8 @@ int _openDevice(GWEN_MSG_ENDPOINT *ep)
 {
   AQH_MSG_ENDPOINT_TTY *xep;
   int fd;
-  int status;
-  int i;
   struct termios options;
   int rv;
-  int m;
 
   xep=GWEN_INHERIT_GETDATA(GWEN_MSG_ENDPOINT, AQH_MSG_ENDPOINT_TTY, ep);
   assert(xep);
@@ -336,6 +333,7 @@ int _endMsg(GWEN_MSG_ENDPOINT *ep)
 {
   /* TODO: flush before releasing ATTN */
   _attnHigh(ep);
+  return 0;
 }