[vfio-users] USB device passthrough regression?

[Peckinpaugh, Brett]

I do not know the details but I did see that the Dev for the Arch VFIO kernel is making a patch for a 4.13 build due to USB issues. What kernel version are you on? 

On October 28, 2017 5:27:15 AM PDT, "P. Pronk" <vfio at pronk.nl> wrote:
>
>I found using USB pass-through quote annoying to use on a daily basis.
>Having to re-attach when disconnected and vm's not starting when a USB
>device is missing, ugh.
>
>If you still have a free pci-e slot in your system I recommend buying
>an
>add-in USB card for ~10 in whatever your currency is and use pci-e
>pass-through. Makes life so much easier.
>
>Eg I used the pci-e x1 slot under my gpu for this with a low-profile
>pci-e riser.
>
>On 28/10/17 13:58, Patrick O'Callaghan wrote:
>> I've been using a USB-attached slide scanner (Ion Slidesforever)
>under
>> a Windows 10 VM using QEMU/KVM USB passthrough, however it has now
>> stopped working.
>>
>> The device still shows up under the Windows "device manager" console,
>> and the scanner app doesn't complain that it can't find it. The
>scanner
>> works correctly on a Windows laptop so the hardware is fine. I've
>also
>> removed and reinstalled the app (you never know with Windows) but
>with
>> no improvement.
>>
>> Under the VM the app launches but doesn't appear to receive any
>input,
>> nor does it give an error message. Removing and reattaching the
>device
>> in the virt-manager console (and rebooting the VM) makes no
>difference.
>>
>> Using xsane under Linux does capture an image, but unfortunately not
>at
>> full resolution, so I need the proprietary Windows app and driver to
>> work.
>>
>> This may have nothing to do with VFIO, but I thought I'd ask in case
>> anyone has seen something similar. I have several thousand slides to
>> get through :-(
>>
>> poc
>>
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>
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