Subject: Re: Missing link quality with wireless-testing
From: Marcel Holtmann <marcel@holtmann.org>
To: Jouni Malinen <j@w1.fi>
Cc: Dan Williams <dcbw@redhat.com>,
	Johannes Berg <johannes@sipsolutions.net>,
	linux-wireless@vger.kernel.org
In-Reply-To: <20090218073104.GA23366@jm.kir.nu>
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Date: Wed, 18 Feb 2009 09:06:31 +0100
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Sender: linux-wireless-owner@vger.kernel.org

Hi Jouni,

> > > Would setting qual->updated |= IW_QUAL_QUAL_INVALID; work for you?  If
> > > some app doesn't handle that, it's totally, completely broken.
> > 
> > does wpa_supplicant handle this value correctly? I actually never
> > checked that.
> 
> No, it doesn't use qual->updated at all. Then again, neither does it
> rely on qual->qual either. The signal level (qual->level) is used first
> and only if that is not available, qual->qual will be used in sorting
> the results.

so it seems the missing value is affecting the details wpa_supplicant is
handing out via its D-Bus interface. I didn't check the code yet to see
what is actually happening or if I just happen to run an outdated
version.

Regards

Marcel