I found on my tablet that though VLC works a USB camera or capture device or DVB=T stick on Linux that on Android it only plays files or streams.
For Android
Any USB device that's a web cam or looks like one to Linux:
USB Camera App https://play.google.com/store/apps/d...roid.usbcamera
A DVB-T stick needs a driver and an application for Android.
I doubt a Web cam / USB camera or video of any kind works on an Onyx boox, or more than stutters.
Note that app needs hundreds of permissions / ads turned off (that's why there is a Pro version), but that's possible in at least Android 13. I've not tried it on other Android versions. Both a generic web cam and analogue video capture device worked.