mechanism for reporting a MAC address

protocol/artistic/artnet/device.cpp

@@ -408,6 +408,19 @@ void Device::txArtDiagData()
 }
 
 
+/**
+ * @brief Device::deviceMac
+ * @return
+ *
+ * The default implimentation is to return an invalid MAC
+ * \note Platform aware device types should return a valid MAC address.
+ */
+std::array<uint8_t, 6> Device::deviceMac() const
+{
+  return std::array<uint8_t, 6>({0});
+}
+
+
 /**
  * @brief Device::deviceIp
  * @return

protocol/artistic/artnet/device.h

@@ -85,6 +85,7 @@ protected:
   void txArtPollReply();
   virtual void txArtDiagData();
 
+  virtual std::array<uint8_t, 6> deviceMac() const;
   virtual ipAddress deviceIp() const;
   virtual ipAddress broadcastIp() const;