From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756648AbYDJKvh (ORCPT ); Thu, 10 Apr 2008 06:51:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755619AbYDJKvW (ORCPT ); Thu, 10 Apr 2008 06:51:22 -0400 Received: from wf-out-1314.google.com ([209.85.200.175]:43465 "EHLO wf-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755508AbYDJKvV (ORCPT ); Thu, 10 Apr 2008 06:51:21 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=XzvB3PJtkfWThFiSwtwez84J1JLYWQdNccMr58mKWtzgDcuv58649pvg4Z0sjKAsGC9mmlJyAzMM5wcBdMpB6WveCITJI43IPv0EILY2+lbRCvtaJLqI/WqzfaVMSPsNqfBanQ9dXtFR1PihpoF5Qan3hQOZC3I7b4UQ9lkf3E8= Message-ID: <5699f8f00804100351q427b1a0dxdeb8254b370cb8ed@mail.gmail.com> Date: Thu, 10 Apr 2008 12:51:21 +0200 From: "Wander Winkelhorst" To: "Wappler Marcel" Subject: Re: Starting point: Suspend to RAM on embedded devices? Cc: linux-kernel@vger.kernel.org In-Reply-To: <83116F0A4FF67A4F97BA0B6E408C48E301E96234@zuerich.BC-Int.NET> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <83116F0A4FF67A4F97BA0B6E408C48E301E96208@zuerich.BC-Int.NET> <5699f8f00804100123q2a9d278arf9b076c91efbbd56@mail.gmail.com> <83116F0A4FF67A4F97BA0B6E408C48E301E96234@zuerich.BC-Int.NET> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 10, 2008 at 11:53 AM, Wappler Marcel wrote: > Wander Winkelhorst wrote: > > The TomTom portable navigation devices (TomTom one, TomTom go etc.) > > > They are based around an ARM CPU from Samsung and run Linux. If you > > press the "power button" it actually does a suspend-to-ram. > > Do you have (or anybody else) experience, how long the wakeup from suspend to RAM does take? Would it be possible to have the fully > functional device with running aplication one second after pushing the power button? Well, my tomtom one V2 takes a couple (5-10) of seconds to wake up again. but that time includes reinitialising the bluetooth chip, checking the SD card, restarting the GPS, loading AGPS data and resuming the navigation software. If you don't have to do all those things it would probably resume a lot faster.