listener: ignore many notifications that come to a device listener

lib/solaar/listener.py

@@ -22,6 +22,7 @@ from __future__ import absolute_import, division, print_function, unicode_litera
 import time
 
 from collections import namedtuple
+from logging import DEBUG as _DEBUG
 from logging import INFO as _INFO
 from logging import WARNING as _WARNING
 from logging import getLogger
@@ -193,6 +194,12 @@ class ReceiverListener(_listener.EventsListener):
             _notifications.process(self.receiver, n)
             return
 
+        # a notification that came in to the device listener - strange, but nothing needs to be done here
+        if self.receiver.isDevice:
+            if _log.isEnabledFor(_DEBUG):
+                _log.debug('Notification %s via device %s being ignored.', n, self.receiver)
+            return
+
         # a device notification
         if not (0 < n.devnumber <= self.receiver.max_devices):
             if _log.isEnabledFor(_WARNING):