DeviceHandler: undo accidental removal of addWatch (fixup 5265b38)

iandobbie · Sep 30, 2023 · f2d235f · f2d235f
1 parent acd5aa3
commit f2d235f
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/cockpit/handlers/deviceHandler.py b/cockpit/handlers/deviceHandler.py
@@ -221,7 +221,9 @@ def __repr__(self):
 
     ## Add a watch on a device parameter.
     def addWatch(self, name, callback):
-        return
+        if name not in self._watches:
+            self._watches[name] = set()
+        self._watches[name].add(callback)
 
 
     ## A function that any control can call to toggle enabled/disabled state.