Re: Trying to understand new wakeup events architecture

Rafael J. Wysocki
2011-01-12T20:02:44Z

On Wednesday, January 12, 2011, Daniel Drake wrote:
> Hi Rafael,
>
> On 16 December 2010 14:39, Daniel Drake <dsd@laptop.org> wrote:
> > On 15 December 2010 22:33, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> >> I guess it's sufficient to read the article at http://lwn.net/Articles/416690/
> >> (or the PDF linked from there is that's not enough :-)).
> >
> > Thanks, that helps a lot.
> >
> >> I don't really think it solves your problem right now, because it's only a
> >> high-level framework and it's missing some mechanics for this purpose.
> >
> > OK, so we'll push for a sysfs node that can be used by userspace to
> > determine the wakeup source.
>
> How do you feel about us using power_kobj to create
> /sys/power/wakeup_source from inside our OLPC code?
> This would include a textual representation of the last wakeup source.
>
> Alternatively we could put it as a sysfs attribute of our own platform device.

I'm basically fine with /sys/power/source as long as its contents are generally
suitable. What exactly do you want to show up in that file?

Rafael