Re: [RFC 1/2] regulatory: allow arbitrary channel widths

[Johannes Berg <johannes@sipsolutions.net>]

On Thu, 2012-12-13 at 14:28 -0800, Luis R. Rodriguez wrote:
> Oops, forgot to add Michael, adding him now.
> 
> Michael, just a sanity check for you. What Johannes is saying is that
> regulatory wise for the 2.4 GHz band on channels 1-11 and on 5 GHz on
> non DFS channels where we never initiate radiation we don't have a
> specific bandwidth restriction. Are you aware of any country
> restricting any 5 GHz world roaming frequency (non DFS) or channel
> 1-11 on 2.4 GHz in terms of bandwidth used?

This is world roaming, so we never use any of the 5 GHz channels unless
we've heard a beacon. If we hear beacons on consecutive (non-DFS)
channels (say 36,40,44,48) we would even enable them and then allow
using 80 MHz there. We could try to prevent this in some way I guess,
but it'd be more complex, and I'm not sure it's needed. However, I think
we need to be able to use 80 MHz in world roaming situations, which the
bandwidth setting currently prevents.

johannes