From owner-freebsd-current@FreeBSD.ORG Sat Dec 20 16:02:50 2008 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 02B481065670; Sat, 20 Dec 2008 16:02:50 +0000 (UTC) (envelope-from hselasky@c2i.net) Received: from swip.net (mailfe12.swip.net [212.247.155.97]) by mx1.freebsd.org (Postfix) with ESMTP id 652D78FC14; Sat, 20 Dec 2008 16:02:49 +0000 (UTC) (envelope-from hselasky@c2i.net) X-Cloudmark-Score: 0.000000 [] X-Cloudmark-Analysis: v=1.0 c=1 a=HFY-znwNPwYA:10 a=HLJsKEY6ouAA:10 a=3ZmJLUaKPReo8yk6yq4A:9 a=z4ckQhxFMG67kUXiz75yDxpDkE0A:4 a=9aOQ2cSd83gA:10 a=LY0hPdMaydYA:10 Received: from [193.217.167.134] (account mc467741@c2i.net HELO [10.0.0.186]) by mailfe12.swip.net (CommuniGate Pro SMTP 5.2.6) with ESMTPA id 996736131; Sat, 20 Dec 2008 17:02:47 +0100 From: Hans Petter Selasky To: "Rong-en Fan" Date: Sat, 20 Dec 2008 17:05:04 +0100 User-Agent: KMail/1.9.7 References: <200812201343.59663.hselasky@c2i.net> <6eb82e0812200557o2700eb8ble49b5bb062693f85@mail.gmail.com> In-Reply-To: <6eb82e0812200557o2700eb8ble49b5bb062693f85@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200812201705.05713.hselasky@c2i.net> Cc: freebsd-current@freebsd.org, freebsd-usb@freebsd.org Subject: Re: USB power save, battery life and laptops X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 20 Dec 2008 16:02:50 -0000 On Saturday 20 December 2008, Rong-en Fan wrote: > On Sat, Dec 20, 2008 at 8:43 PM, Hans Petter Selasky wrote: > > Hi, > > > > I'm going to implement USB power save for USB2 shortly. > > > > If you have a laptop and want to do some battery life measurements, > > please stay tuned. I expect the patches to be complete and ready for > > testing within > > a few days. > > Does this allow CPU to enter C2 or C3 when USB2 module is loaded? > > Regards, > Rong-En Fan Yes, that is correctly guessed! --HPS