Serial string added to CD32 controller adapter

CD32ControllerUSB/CD32ControllerUSB.ino

@@ -23,6 +23,10 @@
 
 #include "Gamepad.h"
 
+// ATT: 20 chars max (including NULL at the end) according to Arduino source code.
+// Additionally serial number is used to differentiate arduino projects to have different button maps!
+const char *gp_serial = "CD32/C= to USB";
+
 #define BUTTON_READ_DELAY 300 // Button read delay in µs
 
 // Controller DB9 pins (looking face-on to the end of the plug):

CD32ControllerUSB/Gamepad.cpp

@@ -24,8 +24,6 @@
  *  
  */
 
-#pragma once
-
 #include "Gamepad.h"
 
 static const uint8_t _hidReportDescriptor[] PROGMEM = {
@@ -146,5 +144,10 @@ void Gamepad_::send()
 
 uint8_t Gamepad_::getShortName(char *name)
 {
+  if(!next) 
+  {
+    strcpy(name, gp_serial);
+    return strlen(name);
+  }
   return 0;
 }

CD32ControllerUSB/Gamepad.h

@@ -29,11 +29,7 @@
 #include <Arduino.h>
 #include "HID.h"
 
-// NOTE: To make this work on the MiSTer (or possibly other Linux distros), 
-// you need to edit USBDesc.h like follows. Change:
-// #define ISERIAL         3
-// to
-// #define ISERIAL         0
+extern const char* gp_serial;
 
 // The numbers after colon are bit fields, meaning how many bits the field uses.
 // Remove those if there are problems