Linux multifunction composite gadget

I'm trying to connect a beagle bone black to my Android 10 device so that I can access the serial console. The device is listed as "Multi-function composite gadget"

Is there an Android driver for this type of device? How to install it?
Linux – Multifunction composite gadget

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Drivers – Canon Multifunction Printer, Scanner Function Not Detected

I use Ubuntu 18.04.01 LTS. I have a Canon TS3129 multifunction printer / scanner. The printer works well and is recognized in the devices. Network printer via wifi.

Try to recognize and operate the scanner function.

Download scangearmp2-3.50.1-deb, tar.gz. from the Canon website.

Driver installed normally. The scanner function still does not display.

I've tried SimpleScan, SKanlite and XSane. None can find the scanner.

I've tried to find / use the scangear application – it seemed to be installed correctly, but could not be found …..

I have read a lot of discussions on this subject, I have tried some methods. I have tried the scanimage -L command, it is stated that no scanner has been found.

What do I miss / hurt?