[Spice-devel] Native USB redirection does not work - (remote-viewer) did not claim interface 0 before use

Hans de Goede hdegoede at redhat.com
Wed Nov 28 12:11:22 PST 2012


Hi,

On 11/28/2012 09:06 PM, Sigbjorn Lie wrote:
>
>
>
> On Wed, November 28, 2012 20:50, Hans de Goede wrote:
>> Hi,
>>
>>
>> On 11/28/2012 12:45 PM, Sigbjorn Lie wrote:
>>
>>> Hi,
>>>
>>>
>>> I receive the following errors when I attempt to use native USB redirection in RHEV 3.1 beta.
>>> It's
>>> a smart card reader I am attempting to redirect into a virtual Windows 7 x64 machine.
>>>
>>> Is this a known error?
>>>
>>
>> It seems that pcscd is using the reader from userspace just like spice is, and the pcscd
>> driver is not properly claiming the interface, and therefor both are trying to talk to the device
>> at the same time!
>>
>> What might help here is to try and disable the pcscd service.
>>
>>
>> Regards,
>>
>>
>> Hans
>>
>>
>>
>
>
> Hi,
>
> Thanks for your reply.
>
> I did try to run "service pcscd stop", and reconnect the smardcard reader to a different USB port,
> and then attempted to share the smartcard reader with the virtual machine. The same issue
> occurred.

Including all the pcscd related error messages? Then I guess the pcscd process was not stopped
properly... Maybe try disabling the service then rebooting ?

Regards,

Hans


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