Johannes Berg wrote:

quoted

quoted

We should do the same for AP mode as well, since the channel really
becomes relevant only upon start_ap(), before that there's no real
concept of a channel since you don't use it yet anyway.

Maybe we should do the same with monitor interface type, i.e. introduce
start_monitor() and have it pass the channel.

No, that's the special case that doesn't work that way -- monitor mode
interfaces are also great for debugging when they're just concurrently
running with other interfaces and don't have their own channel setting.

We can make monitor interface to be a slave to other non-monitor 
interface by passing an extra parameter in start_monitor(). We could 
then have such a monitor interface follow channel changes of a given 
non-monitor interface (or rather it wouldn't be using a channel on it's 
own).

quoted

But then I'm thinking we shouldn't really be changing interface types
explicitly, since they would be set implicitly by start_ap() and such.
We could then use the NL80211_IFTYPE_UNSPECIFIED when we're not associated.

 From some point of view, it should work that way, yes.

Given how entrenched interface types are we definitely can't get rid of
them though, and they're still needed to do concurrency management etc.

Well, I don't think we can get completely rid of them, too. Or do you 
mean something else?


-- 
Pozdrawiam / Best regards, Michal Kazior.