You need to open the config file from within your MAC address folder and use the value from the class line. I just used xxx as the folder name since everyone’s MAC address is different. I guess the more accurate folder name example would be xx:xx:xx:xx:xx:xx. The folder name is irrelevant though, you want the class value from the config file.
Hi man, im goign to crazy, i can’t connect my DualShock4 original on my raspberry pi 2 and retropie.
sudo ./PiAssist.sh
then 2 Bluetooth, 2 connect bluetooth device, scanning… i press and hold ps button, but doesn’ recognize….
i tried to put bluetooth on my Phone (nexus 5) and is recognize, so dongle seems work fine.
Please can you help me ? 
i have also another controller, shanwan controller ps3 fake controller and also not work.
i hope in your support
thanks a lot