docs: private static void onDataReceiveCallback(int fileDescriptor, byte[] data) {
  
          // notify event listeners
          if(listeners.containsKey(fileDescriptor)){
              SerialInterruptListener listener = listeners.get(fileDescriptor);
              if(listener != null) {
                  SerialInterruptEvent event = new SerialInterruptEvent(listener, fileDescriptor, data);
                  listener.onDataReceive(event);
              }
          }
  
          //System.out.println("SERIAL PORT [" + fileDescriptor + "] DATA LENGTH = " + data.length + " / " + new String(data));
      }