From mboxrd@z Thu Jan 1 00:00:00 1970 From: Todd Poynor Subject: Re: What woke system up? Date: Thu, 05 Jan 2006 18:27:41 -0800 Message-ID: <43BDD59D.4090400@mvista.com> References: <20051221002958.GA15851@slurryseal.ddns.mvista.com> <20051222034630.GA4320@slurryseal.ddns.mvista.com> <20060104182116.GA17218@best.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.osdl.org Errors-To: linux-pm-bounces@lists.osdl.org To: Patrick Mochel Cc: linux-pm@osdl.org List-Id: linux-pm@vger.kernel.org Patrick Mochel wrote: > Out of curiosity, are there really cases where there is > 1 wakeup > device? I will guess there are systems in which software will be presented with more than one candidate device that may have woken the system (for example, more than one interrupt is pending at resume time, and this is the only information available on what the wakeup source was). But I don't have a definite example of such a system. So far I've only looked at 2 embedded platforms. One of 'em devotes registers specifically to what woke up the system, and has not yet turned up 2 wakers, but I haven't hit this very hard yet. The other I can't get useful info out of as of yet. -- Todd