Re: [PATCH 1/3] PM: Introduce new top level suspend andhibernation callbacks (rev. 8)

[Pavel Machek]

On Mon 2008-04-14 10:51:34, Alan Stern wrote:
> On Sun, 13 Apr 2008, David Brownell wrote:
> 
> > I sort of agree.  Looking at it from a whole-system perspective,
> > suspending needs to be able to chitchat with userspace ... and I
> > don't think that can be done *before* writing to /sys/power/state
> > in an acceptably generic/portable way.  (Briefly, applications
> > need to have clean stopping points and be able to arrange system
> > wakeup.  They may well have more work to do than most drivers.)
> 
> Pavel's recent work aside, the only way to initiate a system sleep is 
> from userspace.  So it seems natural for all application notifications 
> to be made by the initiating program, perhaps via dbus.

Actually, my plan is to do without notifications. Userspace should
tell kernel "I'm prepared, you can suspend any time now"...

									Pavel
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