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

Sigbjorn Lie sigbjorn at nixtra.com
Wed Nov 28 12:56:36 PST 2012




On Wed, November 28, 2012 21:11, Hans de Goede wrote:
> 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 ?
>


All the messages from pcscd stopped appearing in the log after I stopped the service. I will try
to disable pcscd with chkconfig and reboot tomorrow when I'm back at work.

Thanks.


Regards,
Siggi





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