Re: bus.suspend_prepare()

Linus Torvalds
2006-07-25T18:29:30Z

On Tue, 25 Jul 2006, David Brownell wrote:
>
> Hmm ... I just noticed that the swsusp code path (PM_SUSPEND_DISK)
> is ignoring the new suspend_prepare() mechanism.
>
> That doesn't seem like a good thing ... Linus, is there a reason you
> did it that way?

Just because I found that neither interesting nor testable in my
environment.

> Why is there no sibling resume_complete()? ISTR
> that Ben was the advocate of a suspend_prepare(), but the use cases
> for this call are unclear to me ...

Havign a resume_complete() would be nice for a number of things, like
reloading firmware etc (which usually requires not just the device being
back and fully working, but more importantly, requires user space to be
alive again).

Linus