The link in post #28 it is working fine:
It points to a folder with compiled drivers for Rpi4.
I've added the patches files into a zip file and uploaded it into that same folder.
The patches are generic for the drivers compilation.
You need to edit the module activation patch to you project (RPi2 ?) as it expects the RPi4 project.
And post your results here.
Some trouble patching dvb_frontend.c, but did it by hand. Everything looks ok now. Don't have source signal here to test the tuning, but will do so during the weekend and let you know.
Thanks for the help.