Brightness control question

I found the brightness control in my laptop is FN+F12( brightness down) & FN+HOME( brightness up). My question is how to get the ADB or PS codes to mapping to my Fn keys?? In 10.11, I remapping them in VoodooPS. In 10.12, I tried to installed Debug version VoodooPS but can't get key codes in Console.app. I also tried test PS by ioio -s ApplePS2Keyboard LogScanCodes 1, but there is nothing in Console.app. So, would you please tell me how to detect the right codes and remapping??


Thanks a lot!