Re: [PATCH V3] input: Fix USB autosuspend on bcm5974

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On Wed, 12 Oct 2011, Matthew Garrett wrote:

> On Wed, Oct 12, 2011 at 06:56:32PM +0200, Oliver Neukum wrote:
> > Am Mittwoch, 12. Oktober 2011, 18:16:51 schrieb Matthew Garrett:
> > > Yeah. Plausibly the model we have in hid is wrong at the moment - rather 
> > > than set flags that block suspend, it might make more sense to take 
> > > references. It'd complicate things a little, in that we'd have to take 
> > > more care in terms of keeping track of the state.
> > 
> > I am afraid references are very hard to take there because it needs to be done
> > in interrupt.
> 
> True. That makes things rather more awkward.

What about the second idea I mentioned?  If autosuspend fails with
-EBUSY or -EAGAIN, usbcore could schedule another autosuspend attempt.

Alan Stern

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