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Re: [RFC 0/4] add master channel switch announcement support

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On Tue, 2013-06-11 at 16:18 +0200, Simon Wunderlich wrote:

> > > I was thinking about adding another callback function or option for that for drivers
> > > who do the channel switch internally. Then we would only need mac80211 to adapt.
> > > 
> > > Would that help, or what would be problematic?
> > 
> > I don't really know. If you look at what we do in managed mode now, some
> > drivers will do the switching and report back when done.
> 
> OK, maybe we should leave that open to people who implement that feature for
> their respective drivers.

We just have to be aware of it and make the API "offloading-friendly"

> What I'm concered about is to initiate a channel switch from userspace. This will be
> required for IBSS-DFS: when a radar is detected and this event is sent to userspace, it
> must react by initiating a channel switch.

Why would that not happen in the kernel directly?

johannes

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