Re: [RFC PATCH 2/2] nl80211: implement beacon change notifier

[Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>]

Hello Johannes,

> > The nl80211 get_beacon callback appears to be useful in the case when
> > userspace software needs to retrieve current operational parameters of
> > AP including HT/VHT IEs.
> 
> Do you have any usage in mind though? I can't really see where this
> would really make sense, rather than getting direct hooks for the bits
> you needed in hostapd.
> 
> For example, if you care about the channel bandwidth changing, wouldn't
> it be more efficient to just add a signal to hostapd rather than
> listening to beacon updates and parsing, etc.?

In our case, we are experimenting with applications running along with
hostapd and enabling band steering and client roaming functionality.
As I mentioned, various approaches are being examined, including
both pure nl80211-based approach as well as adding direct hooks
to hostapd.

Regards,
Sergey