Doxygen code comments included

src/main.cpp

@@ -10,6 +10,11 @@ Max7456 osd;
 DisplayProxyMAX7456 display(&osd);
 CommandHandler cmd_handler(&display);
 
+/**
+ * Setup handler (Arduino Style)
+ * 
+ * Write some debug information to the serial port and initialize the display.
+ */
 void setup()
 {
   Serial.begin(BAUDRATE);
@@ -34,6 +39,11 @@ void setup()
   Serial.println("Ready!");
 }
 
+/**
+ * Loop handler (Arduino Style)
+ * 
+ * Continously read the serial port if input is available. On line change send to the command handler.
+ */
 void loop()
 {
   while (Serial.available() > 0)