Which technology (DVB-C or DVB-T/DVB-T2) are you trying to
use on the adapter?
It seems that there hasn't been success with the dongle from
the TVHeadend post you have linked to.
It seems that while there is a kernel module, there hasn't been success
with locking to channels
We will have a DVB-T2 dongle which will be well priced on our Store soon and we plan for
this to run on all OSMC devices (and stay supported on all OSMC devices); so you won't have
to worry about whether an update will break functionality (which sometimes happens with some
poorly maintained WiFi dongles)