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	Tue, 9 Aug 2011 05:40:16 -0400
Subject: Re: Making sense of cfg80211_scan_request.n_ssids
From: Johannes Berg <johannes@sipsolutions.net>
To: Luciano Coelho <coelho@ti.com>
Cc: Daniel Drake <dsd@laptop.org>, Pavel Roskin <proski@gnu.org>,
	linux-wireless <linux-wireless@vger.kernel.org>
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Date: Tue, 09 Aug 2011 11:40:09 +0200
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On Tue, 2011-08-09 at 12:36 +0300, Luciano Coelho wrote:

> > Yeah. "iw dev eth0 scan passive" will cause n_ssids to be 0.
> 
> I think the question was slightly different.  As I understand, Daniel
> wants to know why the n_ssids is 1 even if no SSID is passed from user
> space.

Well, actually, in the iw scan/iwlist scan case an SSID _is_ passed from
userspace: the zero-length wildcard SSID. I made iw do that because an
active scan is more useful :-)

johannes