linux-kernel - Re: Problems with remote-wakeup settings

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Date:	Fri, 5 Mar 2010 23:16:20 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
cc:	Oliver Neukum <oliver@...kum.org>,
	Linux-pm mailing list <linux-pm@...ts.linux-foundation.org>,
	<linux-input@...r.kernel.org>, <linux-hotplug@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: Problems with remote-wakeup settings

On Fri, 5 Mar 2010, Rafael J. Wysocki wrote:

> On Friday 05 March 2010, Oliver Neukum wrote:
> > Am Freitag, 5. März 2010 21:59:31 schrieben Sie:
> > > > I guess it's better if drivers don't set should_wakeup if unsure, but of course
> > > > that's impossible to enforce.
> > > 
> > > That's the real question.  Ideally, drivers won't touch should_wakeup.  
> > > How do we get there from here?
> > 
> > Enable it only for devices specifically designed for wakeup, that is
> > keyboards, power buttons and WoL, perhaps also mice and modems.
> > Are we far away from that?
> 
> I don't think we're very far from that.
> 
> Mice are known dangerous, especially the USB ones, though.

I agree, especially for desktop systems.  You don't want the system to 
wake up merely because you happened to jostle the mouse.  That happened 
to me just a few days ago (and it was a PS/2 mouse, not USB).

Alan Stern

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