Bluetooth device on gameshell

Hello.
I am trying to connect the game pad 2 days ago, but it will not work.
Like a movie, the D-Pad moves, but the button does not work.

The game pad is 8 Bitdo Zero.

Bluetooth connection is done.

There seems to be a driver for this pad in retroarch.


I changed the setting-Driver-Joypad Driver to “udev”.

Add /etc/udev/rules.d/10-local.rules file,
SUBSYSTEM == “input”, ATTRS {name} == “8 Bitdo Zero GamePad”, MODE = “0666”, ENV {ID_INPUT_JOYSTICK} = “1”.

Add /etc/udev/rules.d/99-evdev.rules file,
KERNEL == “event *”, NAME = “input /% k”, MODE = “666”.
https://docs.libretro.com/guides/input-joypad-drivers/

User “cpi” has not been added to “input” group. Do I need it?
Please let me know if there is anything else I can do.