@Lazar-Demin I followed the docs - and then that URL I referenced, which is pretty much the same thing.
Despite that, and despite the fact that the docs sayThe device driver will already be installed and Linux should recognize the device automatically.
I just can't see the GPS board (e.g in "ubus list" after "opkg install ogps") which is attached to an Omega2 Pro.
Do you think I have a dead GS board? Although the blue LED on it is lit.
Aha! I dug out an old Omega 2, which and the GPS board works just fine with that.
So, now the question is how to get it working with the pro board ...
Thanks again for your help