Fixed COV examples to Notify upon subscribe.

bacnet-stack/demo/object/ai.c

@@ -280,7 +280,14 @@ void Analog_Input_Change_Of_Value_Clear(
     }
 }
 
-/* returns true if value has changed */
+/**
+ * For a given object instance-number, loads the value_list with the COV data.
+ *
+ * @param  object_instance - object-instance number of the object
+ * @param  value_list - list of COV data
+ *
+ * @return  true if the value list is encoded
+ */
 bool Analog_Input_Encode_Value_List(
     uint32_t object_instance,
     BACNET_PROPERTY_VALUE * value_list)
@@ -320,8 +327,8 @@ bool Analog_Input_Encode_Value_List(
         value_list->value.next = NULL;
         value_list->priority = BACNET_NO_PRIORITY;
         value_list->next = NULL;
+        status = true;
     }
-    status = Analog_Input_Change_Of_Value(object_instance);
 
     return status;
 }