I've been using the Airspy ADS-B decoder on a model 2B with an early OS (Jessie?) for some time, without problems. The software is described here:
As an experiment, I tried a new SD card with the latest Buster OS, but the program no longer works correctly. The program does run, but doesn't function - i.e. it doesn't produce decodes of aircraft. Perhaps it cannot connect to the USB device, but it doesn't issue any error message (I know!).
Are there any things I should set in Buster to allow an Airspy device to work? Any issues with e.g. the RTL-SDR sticks (this is a different device). Any issues with Buster on a model 2B?
I have asked the developer but he's currently busy with a major new product launch. I'm not quite how to debug this!