driver status, setup, stop

lighthub/abstractch.h

@@ -1,13 +1,19 @@
 #pragma once
 #include "Arduino.h"
 
+#define CST_UNKNOWN  0
+#define CST_INITIALIZED  1
+
 class abstractCh {
 public:
     abstractCh(){};
     virtual ~abstractCh(){};
     virtual int Poll() = 0;
-    virtual int Setup() =0;
+    virtual int Setup() =0;        //Should initialize hardware and reserve resources
     virtual int Anounce () {};
+    virtual int Stop() {};         //Should free resources
+    virtual int Status() {return CST_UNKNOWN;}
+
 
 protected:
 virtual int publishTopic(char* topic, long value, char* subtopic = NULL);