add debug

src/fenrir/screenDriver/vcsaDriver.py

@@ -98,6 +98,7 @@ class driver():
             self.env['screen']['autoIgnoreScreens'] = []           
  
     def updateWatchdog(self,active , eventQueue):
+        try:
             vcsa = {}
             for i in range(1,7):
                 vcsa[str(i)] = open('/dev/vcsa'+str(i),'rb')
@@ -130,7 +131,8 @@ class driver():
                         if screenContent != lastScreenContent:
                             eventQueue.put({"Type":fenrirEventType.ScreenUpdate,"Data":''})
                             lastScreenContent = screenContent              
-  
+        except Exception as e:
+            self.env['runtime']['debug'].writeDebugOut('VCSA:updateWatchdog:' + str(e),debug.debugLevel.ERROR)         
     def update(self, trigger='onUpdate'):
         if trigger == 'onInput': # no need for an update on input for VCSA
             return