This app for checking and configuring gamepads and other input devices.
Also you can rebind buttons and axes via .kl files (need root).
Bluetooth/OTG Gamepads.
Functions:
- show pressed buttons and axes
- create, read, write, delete .kl files
- make backups and restores .kl files
- show info about connected devices

Remember !!! When using root-permissions, you do all actions with your phone at your own risk !!! No one is responsible for your actions! Before any actions, make a backup!