Messages in this thread | | | Date | Mon, 12 Apr 2010 13:43:49 +0200 (CEST) | From | Jiri Kosina <> | Subject | Re: [PATCH v6 7/8, needs improvement] hid: add suspend/resume hooks for hid drivers |
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On Sun, 11 Apr 2010, Bruno Prémont 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).
What do you mean by "is not allowed" exactly?
Yes, it will wake the device up from auto-suspension. However, that's usually what you want to happen, is there is anything you need to dispatch to the device, isn't it?
What exactly is the situation you are trying to handle?
Thanks,
-- Jiri Kosina SUSE Labs, Novell Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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