On Mon, Jun 04, 2012 at 10:22:12AM -0400, Alan Stern wrote:
> On Mon, 4 Jun 2012, Hans de Goede wrote:
>
> > >>> I'm thinking that maybe the issue is that the EREMOTEIO error gets
> > >>> generated
> > >>> by the driver based on the SHORT_NOT_OK flag (or so I believe), not the
> > >>> hc
> > >>>
On Mon, 4 Jun 2012, Hans de Goede wrote:
> >>> I'm thinking that maybe the issue is that the EREMOTEIO error gets
> >>> generated
> >>> by the driver based on the SHORT_NOT_OK flag (or so I believe), not the hc
> >>> itself, could it be that the code doing that does not halt the ep, or
> >>> hal
Hi,
Hmm, should have read the thread further before reply-ing to
Sarah's first response. Lets continue the discussion from here
as this part of the thread seems more focussed on the issue at hand.
On 06/04/2012 06:22 AM, Sarah Sharp wrote:
> On Fri, May 25, 2012 at 09:47:53PM -0400, Alan Stern wr
On Fri, May 25, 2012 at 09:47:53PM -0400, Alan Stern wrote:
> On Fri, 25 May 2012, Hans de Goede wrote:
>
> > > Judging by your description, there is a bug either in xhci-hcd or in
> > > your xHCI hardware. What does "lspci -vv" show for the controller?
> >
> > 01:00.0 USB Controller: NEC Corpor
On Fri, May 25, 2012 at 04:54:01PM -0400, Alan Stern wrote:
> On Fri, 25 May 2012, Hans de Goede wrote:
> > Here is what I believe is happening, at 2 libusb splits the
> > bulk in transfer into 2 packets, 1 of 16k and 1 of 4k, setting the
> > USBDEVFS_URB_SHORT_NOT_OK flag on both and the
> > USBDE
On Sat, May 26, 2012 at 4:54 AM, Alan Stern wrote:
> On Fri, 25 May 2012, Hans de Goede wrote:
>> I spend the last 1.5 days debugging a problem with redirecting
>> certain USB mass-storage devices to a Windows 7 vm.
>>
>> This problem only happens when the device is plugged into an
>> USB 3 port.
On Mon, May 28, 2012 at 7:27 PM, Hans de Goede wrote:
> So it is almost the same NEC XHCI controller in both cases,
> except that mine is a revision 4, and the thinkpad
> one is a revision 3.
>
Just wondering if you could try to update the FW (probably need to
use Windows machine) and then see if
Hi,
On 05/25/2012 10:54 PM, Alan Stern wrote:
> On Fri, 25 May 2012, Hans de Goede wrote:
>
>> To verify my theory, I've tried raising the packet splitting limit in
>> libusb to 32k and that (unsurprisingly) fixes things, but that is just
>> a bandaid and not a proper fix for the issue at hand IMH
On Fri, 25 May 2012, Hans de Goede wrote:
> > Judging by your description, there is a bug either in xhci-hcd or in
> > your xHCI hardware. What does "lspci -vv" show for the controller?
>
> 01:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller
> (rev 04) (prog-if 30 [XHCI])
Hi,
On 05/25/2012 10:54 PM, Alan Stern wrote:
> On Fri, 25 May 2012, Hans de Goede wrote:
>
>> Hi,
>>
>> I spend the last 1.5 days debugging a problem with redirecting
>> certain USB mass-storage devices to a Windows 7 vm.
>>
>> This problem only happens when the device is plugged into an
>> USB 3
On Fri, 25 May 2012, Hans de Goede wrote:
> Hi,
>
> I spend the last 1.5 days debugging a problem with redirecting
> certain USB mass-storage devices to a Windows 7 vm.
>
> This problem only happens when the device is plugged into an
> USB 3 port.
>
> I believe I now know what is happening:
>
Hi,
I spend the last 1.5 days debugging a problem with redirecting
certain USB mass-storage devices to a Windows 7 vm.
This problem only happens when the device is plugged into an
USB 3 port.
I believe I now know what is happening:
First the working sequence:
1) Windows guest writes some bulk d
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