Index: netXTransport.c
===================================================================
--- netXTransport.c	(revision 5795)
+++ netXTransport.c	(working copy)
@@ -1315,11 +1315,16 @@
 void DeviceNotifyCallback( const char* szInterfaceName, const char* szDeviceName, uint32_t ulDeviceIdentifier, NETX_INTERFACE_NOTIFICATION_E eNotify, void* hTransport, void* pvDevicePrivateData)
 {
   PNETX_TRANSPORT_INTERFACE_T ptInterface = netXTransportSearchInterface( szInterfaceName);
-  char                        szNewDeviceName[NXT_MAX_PATH];
 
-  OS_Strvsprintf( szNewDeviceName, 16, "%s_%s", szInterfaceName, szDeviceName);
-
-  netXTransportDeviceStateChange( ptInterface, NULL, szNewDeviceName, ulDeviceIdentifier, eNotify, hTransport, pvDevicePrivateData);
+  if (OS_Strlen(szInterfaceName))
+  {
+    char szNewDeviceName[NXT_MAX_PATH] = "";
+    OS_Strvsprintf( szNewDeviceName, 16, "%s_%s", szInterfaceName, szDeviceName);
+    netXTransportDeviceStateChange( ptInterface, NULL, szNewDeviceName, ulDeviceIdentifier, eNotify, hTransport, pvDevicePrivateData);
+  } else
+  {
+    netXTransportDeviceStateChange( ptInterface, NULL, (char*)szDeviceName, ulDeviceIdentifier, eNotify, hTransport, pvDevicePrivateData);
+  }
 }
 
 /*****************************************************************************/