Thomas B,bdchler wrote: > Sujith schrieb: > >> I think I remember that the wireless stack will fall back to a default > >> (minimal) set of channels if crda is missing (which is not too different > >> from the current behaviour). > > > > That's right, WORLD regulatory domain would be chosen if CRDA is missing. > > But it has a limited set of channels than what people were using so far, > > so expect a rash of 'wireless not working' bugs. :) > > I think you could still set the domain via a cfg80211 module option or > it would be determined automatically by some country code set in the > EEPROM if possible. There's not too much documentation about this ... > Nope, no cfg80211 module option exists to choose the country code. But you are correct, drivers _can_ hint CRDA of the country code programmed in the EEPROM, but not all drivers have been converted to make use of this feature. Another way to choose a regulatory domain is to just enforce what the AP advertises (802.11d). This page pretty much covers all of this: http://wireless.kernel.org/en/developers/Regulatory#Theregulatorydatabase I have CC'd the main developer behind CRDA, he can probably advise on the best way a distribution can incorporate all this. Sujith -- http://sujith-m.blogspot.com
