Re: [PATCH 11/13] PM: earlysuspend: Removing dependence on console.

Pavel Machek
2009-02-05T09:53:06Z

> >> + Register early suspend handler that notifies and waits for
> >> + user-space through sysfs when user-space should stop drawing
> >> + to the screen and notifies user-space when it should resume.
> >> endchoice
> >
> > Hmm, as far as I can tell, turning this option on will immediately
> > break suspend on all existing setups. Bad.
>
> I'm not aware of any existing interface that works if console support
> is not enabled.

That's why console switching support is mandatory today.

If you want to change that, fine, but CONFIG_ option should not
immediately break existing setups. Rather, you should detect that
userspace is capable of using new interface, and only then wait for
it...
Pavel
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