On Fri, Jun 28, 2013 at 04:17:44PM -0700, Sarah Sharp wrote:
> On Fri, Jun 28, 2013 at 03:24:49PM -0400, Alan Stern wrote:
> > Please use Reply-To-All so that your response gets sent to the mailing 
> > list as well as to me.  And please don't top-post.
> > 
> > On Fri, 28 Jun 2013, William Gulland wrote:
> > 
> > > Yes, two ClearTTBuffer requests seem to be necessary with Intel's 
> > > CaveCreek
> > > integrated rate-matching hub - I've got it into the state where control
> > > requests to a USB 1.1 device were failing,
> > 
> > How did you manage to do that?
> > 
> > >  but recovered when I sent the
> > > hub a ClearTTBuffer for endpoint 0 - but only if I set the IN bit in the
> > > request.
> > 
> > This sounds like a bug in the Intel hub hardware, or at least, 
> > unintentional behavior.
> > 
> > Sarah, is this the sort of thing the Intel engineers would want to know 
> > about?
> 
> I will send them a report.  However, if this was found on production
> hardware, there's probably not much they can do about it for CaveCreek.

Then we should only do this for that specific hardware device, right?

thanks,

greg k-h
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