Return-path: Received: from rv-out-0506.google.com ([209.85.198.229]:43612 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752457AbZCZIjR convert rfc822-to-8bit (ORCPT ); Thu, 26 Mar 2009 04:39:17 -0400 Received: by rv-out-0506.google.com with SMTP id f9so519705rvb.1 for ; Thu, 26 Mar 2009 01:39:15 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <1238055060.4331.1.camel@johannes.local> References: <1237891149.4320.73.camel@johannes.local> <1237910398.9082.7.camel@localhost.localdomain> <1237979070.4320.156.camel@johannes.local> <1237995072.18896.9.camel@localhost.localdomain> <1237996137.4320.161.camel@johannes.local> <43e72e890903260100w75896d0fi9121f227cc7ca8dc@mail.gmail.com> <1238055060.4331.1.camel@johannes.local> Date: Thu, 26 Mar 2009 01:39:00 -0700 Message-ID: <43e72e890903260139k29d9e9a0ub418cdfbaef03418@mail.gmail.com> (sfid-20090326_093922_116077_A3A24754) Subject: Re: wireless powersaving (in NM?) From: "Luis R. Rodriguez" To: Johannes Berg Cc: Dan Williams , "Guy, Wey-Yi W" , linux-wireless , Kalle Valo , Matthew Garrett , Marcel Holtmann , Jouni Malinen Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, Mar 26, 2009 at 1:11 AM, Johannes Berg wrote: > On Thu, 2009-03-26 at 01:00 -0700, Luis R. Rodriguez wrote: > >> > Right. If a particular chipset doesn't properly supported PS then = we >> > shouldn't actually support it at all -- but we cannot know if the = AP is >> > broken. >> >> How about leaving it to the supplicant to guess if the AP is borked = or not. >> >> Kalle, what would happen with these broken APs? > > We talked about that briefly yesterday -- it's not very easy to > determine this because of the various ways things break: > > =C2=A0* one AP sets the broadcast/multicast bit one beacon too late (= after > =C2=A0 having already sent the frames) > =C2=A0* one AP doesn't buffer frames at all > =C2=A0* one AP doesn't respond to PS-poll frames It sounds like all 3 things can be tested for. Luis -- To unsubscribe from this list: send the line "unsubscribe linux-wireles= s" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html