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Date: Sat, 19 Jul 2014 11:21:52 -0700 From: Dmitry Torokhov <dtor@...gle.com> To: Alan Stern <stern@...land.harvard.edu> Cc: Benson Leung <bleung@...omium.org>, "Rafael J. Wysocki" <rjw@...ysocki.net>, Patrik Fimml <patrikf@...omium.org>, Bastien Nocera <hadess@...ess.net>, linux-pm@...r.kernel.org, "linux-input@...r.kernel.org" <linux-input@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: Power-managing devices that are not of interest at some point in time On Saturday, July 19, 2014 01:59:01 PM Alan Stern wrote: > On Sat, 19 Jul 2014, Benson Leung wrote: > > > This raises an interesting question. Suppose the system gets suspended > > > while the lid is closed. At that point, shouldn't wakeup devices be > > > enabled, even if they were already inhibited? > > > > It's possible that this could be a policy decision, ie, whether > > power/wakeup is set to enabled for those devices or not. > > However, I'd say that there's only one policy that makes sense in that > > case : wakeups should be disabled while suspended. > > > > If we inhibited the device during runtime to prevent stray input > > events from being generated, it wouldn't make sense to allow the > > device to potentially generate an accidental wakeup while suspended. > > That doesn't really make sense. If you're afraid of a device > generating spurious wakeup events when the lid is closed, you should > never enable it for wakeup. After all, one of the first things that > people often do after suspending their laptop is close the lid. That's a fair point, and I think should be done by default. But that does not change what Benson said - I think if we inhibited the device it should stay inhibited across system suspend, including being disabled as wakeup source even if it could be enabled as such. Thanks, Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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