suspend/resume uevents [was Re: [linux-pm] Introducing HAL userspace power management]

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On Fri, 2005-03-11 at 00:28 -0500, David Zeuthen wrote:
> On Fri, 2005-03-11 at 00:07 +0100, Pavel Machek wrote:
> > > I was merely asking for an event when the system is resumed.
> > > 
> > > I agree it doesn't make much sense for an event just before the system
> > > is suspended - if this is needed I believe we can orchestrate it
> > > completely from user space (things like making your email app
> > > synchronize etc. comes to mind).
> > 
> > You can have event when the system is resumed. Just do it in userspace.
> > 
> 
> Maybe I'm reading the source wrong, but isn't it the case that some
> laptops using APM (my IBM thinkpad T41 with acpi=off for instance)
> suspends without user space interaction when the lid is closed, thus
> rendering it impossible to send the event from user space? 
> 
> One may even ask whether it's sound to assume that all architectures
> will be suspended via user space?
> 
> <snip>

I would consider this to be an exception.  APM has been obsolete for
years.  Our focus (for those platforms where it is available) should be
with ACPI on.

Thanks,
Adam



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