Return-path: Received: from purkki.adurom.net ([80.68.90.206]:55282 "EHLO purkki.adurom.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751532Ab3ANHBM (ORCPT ); Mon, 14 Jan 2013 02:01:12 -0500 From: Kalle Valo To: Vladimir Kondratiev Cc: Subject: Re: Q: how to update platform power state for the network driver References: <6929081.7c7blFVDp4@lx-vladimir> <87ehhsu38q.fsf@purkki.adurom.net> <1550342.hytzsOV4KI@lx-vladimir> Date: Mon, 14 Jan 2013 09:01:10 +0200 In-Reply-To: <1550342.hytzsOV4KI@lx-vladimir> (Vladimir Kondratiev's message of "Sun, 13 Jan 2013 09:33:54 +0200") Message-ID: <8738y41c5l.fsf@purkki.adurom.net> (sfid-20130114_080116_396614_7B618883) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: Vladimir Kondratiev writes: > On Thursday, January 10, 2013 11:39:33 PM Kalle Valo wrote: >> Vladimir Kondratiev writes: >> >> > in 60g spec (802.11ad, references to this doc.), station should set "power source" bit in the: > [skip] >> >> Scary! Just of curiosity, how is this bit supposed to be used in real life? >> > > In 60g, you have new ah-hoc network type, PBSS, that should be used for P2P (spec mandates it) > In PBSS, there is AP-like entity called PCP. Instead of P2P GO negotiation, GO choosen before, > on lower layer, when selecting PCP. In this decision, "best suitable" candidate selected PCP, > based on "PCP factor" calculated for each peer. Most significant bit there is "power" since > one who is AC powered is better candidate. > > Bottom line - this is to elect as P2P GO AC-powered one (if there is such peer). Ok, so it's just a sort of priority bit. That's not bad. -- Kalle Valo