From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 5 Jan 2001 11:56:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 5 Jan 2001 11:55:55 -0500 Received: from barbados.bluemug.com ([63.195.182.101]:50960 "EHLO barbados.bluemug.com") by vger.kernel.org with ESMTP id ; Fri, 5 Jan 2001 11:55:39 -0500 Date: Fri, 5 Jan 2001 08:55:14 -0800 To: Alan Cox Cc: David Lang , David Woodhouse , Daniel Phillips , Helge Hafting , linux-kernel@vger.kernel.org Subject: Re: Journaling: Surviving or allowing unclean shutdown? Message-ID: <20010105085514.A12902@bluemug.com> Mail-Followup-To: miket, Alan Cox , David Lang , David Woodhouse , Daniel Phillips , Helge Hafting , linux-kernel@vger.kernel.org In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from alan@lxorguk.ukuu.org.uk on Thu, Jan 04, 2001 at 06:11:11PM +0000 From: Mike Touloumtzis Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 04, 2001 at 06:11:11PM +0000, Alan Cox wrote: > > in an enbedded device you can > > 1. setup the power switch so it doesn't actually turn things off (it > > issues the shutdown command instead) > > Costs too much money Many newer cell phones, even low spec ones, will have a software power switch (usually with a hardware override after about 5 seconds of continuous press). There are many other concessions that need to be made to power efficiency, like the ability to toggle power to even very minor peripherals and chips (not only each CPU and DSP, but the bus controllers and UARTs connecting things together). These things sell in the millions, so their designers can easily budget the custom logic. miket - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/