emagic mt4 midi interface on a recent mac mini (intel) with 10.13 (or so...)

hello,

I just found my old emagic mt4 midi interface and would like to use it on recent macs (intel or m1 apple silicon). It does show up under USB devices but not in audio-midi-setup. Do I need a driver? I found an old driver called «UnitorMIDIDriver» but my M1 macbook Pro said, it's not necessary to install it. When I plug in the interface, the USB-LED flashes twice but then only «Patch» LED stays on. It also flashes MIDI-LED's as long as I play on the connected keyboard.

Any ideas how I can get it to work with garage band or logic pro?