Return-path: Received: from smtp.nokia.com ([131.228.20.171]:32639 "EHLO mgw-ext12.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755084AbXHPFqQ (ORCPT ); Thu, 16 Aug 2007 01:46:16 -0400 To: "Johannes Berg" Cc: linux-wireless , Jiri Benc , Michael Wu Subject: Re: mac80211 AP mode powersaving problems? References: <1186990509.27916.38.camel@johannes.berg> From: Kalle Valo Date: Thu, 16 Aug 2007 08:43:21 +0300 In-Reply-To: <1186990509.27916.38.camel@johannes.berg> (ext Johannes Berg's message of "Mon\, 13 Aug 2007 09\:35\:09 +0200") Message-ID: <87lkccf30m.fsf@tikku.osso.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: "Johannes Berg" writes: > is it possible that something is broken with powersave mode? I frequently > have connection stalls up to hangs with the N770 that go away when I > either continually ping from the beginning of the connection or do > something from the N770 instead of from the laptop that is functioning > as the AP. [...] > I'll keep digging, but if somebody has any idea if/how the powersave > code works let me know where to look. One thing which came to my mind is that when Nokia 770 is in PSM it uses PS-Poll to fetch the frames from AP. Few devices do that, so I wonder if mac80211 supports that properly? But I'm just guessing here. -- Kalle Valo