working on outputgpiointerface.cpp

FlippR-Driver/src/utility/GPIOInterface.h

@@ -26,7 +26,7 @@ public:
   GPIOInterface();
   virtual ~GPIOInterface() {};
 
-/* todo ???? */
+protected:
   static void initialize_input_pin(char address);
 
   static void initialize_output_pin(char address);
@@ -37,6 +37,9 @@ public:
 
 public:
   static std::once_flag GPIO_LIB_INITIALIZED;
+
+private:
+  unsigned int pin_base;
 };
 
 }