Return-path: Received: from dhost002-47.dex002.intermedia.net ([64.78.21.143]:47621 "EHLO dhost002-47.dex002.intermedia.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751963AbXB1VJa (ORCPT ); Wed, 28 Feb 2007 16:09:30 -0500 From: "Jouni Malinen" Date: Wed, 28 Feb 2007 13:09:26 -0800 To: Michael Wu Cc: linux-wireless@vger.kernel.org Subject: Re: [PATCH 5/5] d80211: switch STA interfaces to PS mode during scan Message-ID: <20070228210926.GM31074@devicescape.com> References: <20070228203943.11473.95222.stgit@magic.sourmilk.net> <20070228203943.11473.88812.stgit@magic.sourmilk.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20070228203943.11473.88812.stgit@magic.sourmilk.net> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Wed, Feb 28, 2007 at 03:39:43PM -0500, Michael Wu wrote: > This makes scans switch STA interfaces into PS mode so the AP queues frames > destined for us while we are scanning. This is achieved by sending a > nullfunc data frame with the PS mode bit set before scanning commences, > and a PS poll frame after scanning is completed. Why bother with PS Poll in this case? Just send data::nullfunc with PS Poll flag cleared. That will make the AP deliver all buffered frames (if any). -- Jouni Malinen PGP id EFC895FA