Re: Hardware bug in Intel USB-2 hub?

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On Thu, 12 Jun 2014, Adam Borowski wrote:

> On Thu, Jun 12, 2014 at 02:11:58PM -0400, Alan Stern wrote:
> > On Wed, 11 Jun 2014, Oliver Neukum wrote:
> > 
> > > Alan,
> > > 
> > > I don't like this, but it might be enough to simply
> > > revert 0aa2832dd0d9d8609fd8f15139bc7572541a1215.
> > > I am afraid we have to deal with real hardware, not specs.
> > 
> > Toralf and Adam:
> > 
> > Does this patch (for 3.14 or 3.15) fix the problems you observed?
> 
> No, neither for 3.14.7 nor for 3.15.
> 
> USB wakeup signals from hibernation don't work, the power button does.
> Wakeup from suspend still works (unlike the situation before
> c1db30a2a79eb59997b13b8cabf2a50bea9f04e1, the commit I bisected the
> hibernation problem to).

I don't get it.

What happens if you run a kernel built from the commit preceding 
0aa2832dd0d9?  Such a kernel should behave the same as what you get 
with this patch installed, regardless of whether c1db30a2a79e is 
present or not.

If it doesn't then something else has changed in the meantime.

Alan Stern

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