> the tricky part of my search for ideal adapter(needn't non-free firmware)
> isthat many vendors claim they support linux, but i'm afraid they require
> non-free firmware
> is there some easy way to find out if it requires non-free firmware?
Buy it from a place that did this job for you.
E.g. my Librem mini came with a wifi adapter that doesn't require
non-free firmware, because the vendor went through the trouble (it
includes a bluetooth feature as well but that feature does require
a non-free blob, sadly).
I think you want to look for wifi adapters that work with the ath9k
driver (I don't know if that is sufficient to guarantee that they work
with a free firmware, tho).
Stefan
