Add the GetKeyboardState USB command.

right/src/usb_protocol_handler.c

@@ -155,6 +155,11 @@ void writeConfiguration(bool isHardware)
     memcpy(buffer+offset, GenericHidInBuffer+1+1+2, length);
 }
 
+void getKeyboardState(void)
+{
+    GenericHidOutBuffer[1] = IsEepromBusy;
+}
+
 // The main protocol handler function
 
 void usbProtocolHandler(void)
@@ -200,6 +205,9 @@ void usbProtocolHandler(void)
         case UsbCommand_ReadUserConfiguration:
             readConfiguration(false);
             break;
+        case UsbCommand_GetKeyboardState:
+            getKeyboardState();
+            break;
         default:
             break;
     }

right/src/usb_protocol_handler.h

@@ -21,6 +21,7 @@
         UsbCommand_ReadHardwareConfiguration  = 13,
         UsbCommand_WriteHardwareConfiguration = 14,
         UsbCommand_ReadUserConfiguration      = 15,
+        UsbCommand_GetKeyboardState           = 16,
     } usb_command_t;
 
     typedef enum {