Re: [RFC] mac80211_hwsim: notify user-space about channel change.

[Johannes Berg <johannes@sipsolutions.net>]

On Tue, 2015-02-24 at 06:36 -0800, Ben Greear wrote:

> We could push more and more of this to user-space and let it decide whether and
> how to forward or accept frames for particular radios.

Sure, no objection to that. However, just arbitrarily adding a "change
channel" call, without thinking about the realities of the code already
supporting multi-channel concurrency, remain-on-channel and hw-scan
operations won't get us very far and just lead to issues with the API.

> But, to do that, we need the low-level settings sent to user-space
> (such as current channel).  Encryption keys could be a future enhancement
> here, so that we can do 'hardware' encryption in hwsim (and handle encrypt/decrypt
> logic however we want in user-space).

Sure. I'd just like to ask that the API is actually useful in more than
the default single-channel support BSS-only case :)

johannes