Date: Thu, 22 May 2008 19:28:10 -0400
From: Vincent C Jones <v.jones@networkingunlimited.com>
Subject: Re: iwl4965 - wpa_supplicant can't see 5Ghz frequencies -	2.6.26-rc1
 kernel
In-reply-to: <1ba2fa240805221550p774708f9h7aab016a24202cff@mail.gmail.com>
To: Tomas Winkler <tomasw@gmail.com>
Cc: linux-wireless@vger.kernel.org,
	Emmanuel Grumbach <egrumbach@gmail.com>
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> >
> > Applied patch to today's
> > git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git
> > and I can confirm that wpa_supplicant v0.6.3 again works on the A band.
> >
> > FWIW, however, I still have some issues:
> >
> > 1 - Roaming from 3com to NetGear takes about 5 minutes before iwlist
> > scan sees the A/N channel on the NetGear AP. Roaming from NetGear to
> > 3com, however, the 3com AP is seen on the first scan after losing
> > contact.
> 
> What channel is NG?, what is the beacon period.

Primary is 36, secondary is 40. (3com is 48). Beacon period is not a
settable parameter on the Netgear and is not documented (3com is set to
default 100ms).

> We'll soon release a new uCode that should speed up a bit scanning on A band.

That would be nice, we need several orders of magnitude improvement
here...

> > 2 - The NetGear is allegedly 11n, but shows up as standard A (or G) in
> > iwconfig et al. Highest data rate listed by iwlist is 54 on A, 48 on G.
> 
> wext doesn't report 11n rates and probably never will, it doesn't mean
> there is no 11n connection.

When I have nothing better to do I'll have to try some performance
testing :-) 

> Currently I don't have some non crypto interface looking into it.
> 
> > 3 - Booting Windows, the 4965 does see the NetGear as 802.11n, so I
> > can't blame it on the hardware...
> >
> No you cant :)
> 
> > 4 - I won't guarantee it is not a configuration issue on my part...
> > attached is the ".config" file used to compile the kernel.
> >
> Looks good.
> 
> Tomas

Thanks, I appreciate all your good work and support.

Vince