[vbox-dev] USB EHCI support under Windows

[Michael Thayer]

Hello Hans-Peter,

On Thu, 2011-08-25 at 11:50 +0200, Hans Petter Selasky wrote:
> On Wednesday 24 August 2011 18:06:32 Michael Thayer wrote:
> > On Fri, 2011-08-19 at 17:02 +0200, Hans Petter Selasky wrote:
> > > Investigating this issue more properly, I see that VirtualBOX returns an
> > > error code when the Emulated OS tries to clear the stall on any
> > > endpoints. This in turn cause the Emulated OS (FreeBSD) to re-enumerate
> > > the device.
> > > 
> > > Is this a bug or feature in VirtualBOX. Shouldn't clear-stall allways
> > > succeed, even if the data toggle value is not cared about?
> > 
> > I'm afraid I am rather ECHI-illiterate, but would you be able to send a
> > pointer to the relevant point in the spec?  (Like a page number/whatever
> > for version 1.0 of the spec).
> 
> Hi,
> 
> Please see page 192 of usb11.pdf (This is also true for USB2.0)
[...]
Would you like to open a bug ticket for this?  If I understood correctly
you saw this on a Windows host - if you have the chance it would be nice
if you could test it on another host, otherwise an easy recipe to
reproduce it would be helpful.

Regards,

Michael
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