Use OTG Guru to get a list of the USB devices connected to the OTG port.
For each device, the app will display:
- path
- VID, PID
- Class
- Interfaces
The app will list all the available interfaces.
For each interface, the app will list all the available endpoints and their details.

We hope that you will find the OTG Guru useful if you are developing USB devices or drivers.

If you are a developer, you might also like our RoboRemo app, useful for debugging embedded stuff:
https://play.google.com/store/apps/details?id=com.hardcodedjoy.roboremo&referrer=utm_source%3Dogd