[vfio-users] USB device passthrough regression?

[P. Pronk]

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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