[vfio-users] USB device passthrough regression?

[A de Beus]

Don’t know if it’s the same thing, but I have some USB satellite/TV adapters made by PCTV systems that behave in a similar manner under Windows 7.  I assumed these devices are doing some unusual or non standard USB thing that isn’t documented.

A de Beus


> On Oct 28, 2017, at 6:55 AM, Peckinpaugh, Brett <bp10 at erylflynn.com> wrote:
> 
> 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
>>> 
>>> 
>>>  vfio-users mailing list
>>>  vfio-users at redhat.com
>>>  https://www.redhat.com/mailman/listinfo/vfio-users
>> 
>> 
>> vfio-users mailing list
>> vfio-users at redhat.com
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