Re: [PATCH v6 7/8, needs improvement] hid: add suspend/resume hooks for hid drivers

Bruno Prémont
2010-04-11T18:40:14Z

On Sun, 11 April 2010 Jiri Kosina <jkosina@suse.cz> wrote:
> > As far as I understand the code, in auto-suspend case if the driver
> > sends commands to the device it will have to call usbhid_wait_io().
> > Please correct me if I'm wrong!
>
> It's not needed. There is a queuing mechanism in place on
> 'resumption_waker' workqueue.

So the driver is not allowed to ask the device to do something
at auto-suspend time (as that would abort the auto-suspension).

Am I right?

Thanks,
Bruno