do cleanups

src/fenrir/brailleDriver/brlapi.py

@@ -44,10 +44,18 @@ class driver():
 
     def connectDevice(self):
         self._brl = brlapi.Connection()
+
+    def enterTTY(self):
+        if not self._isInitialized:
+            return
         self._brl.enterTtyModeWithPath()
 
-    def shutdown(self):
+    def leveTTY(self):
         if not self._isInitialized:
             return
         self._brl.leaveTtyMode()
 
+    def shutdown(self):
+        if not self._isInitialized:
+            return
+        self.leveTTY()