[Spice-devel] [ usbredir ] usb device (sagem card reader ) not working

nicolas prochazka prochazka.nicolas at gmail.com
Wed May 30 03:48:18 PDT 2012


Hi,
1 - Yes i've first  tried without any debug, same effect.
2 - I also tried with qemu-kvm 1.1 rc3 and with your
qemu-kvm-1.0-usbredir branch , same effect

Regards,
Nicolas


2012/5/30 Hans de Goede <hdegoede at redhat.com>:
> Hi,
>
>
> On 05/29/2012 05:01 PM, nicolas prochazka wrote:
>>
>> Hello,
>> I'm trying to use this usb device :
>>
>> http://www.ingenico.com/en/products/payment_terminals/healthcare/twin30-plus_fm0cqjcy.html
>> under windows guest, this usb device is mounting but not recognized
>> it's seems to be a special usb device , that's using serial port (
>> create com3  ) under windows.
>>
>> some debug ( spicy, qemu libspice, linux spicy host )
>> version : qemu-kvm 1.1 rc3  , libspice from git, spicy 0.12
>
>
> Some questions:
>
> 1) Have you tried using it without all the debugging enabled, debugging can
> slow things
> down considerably, and if this device is using an ftdi usb to serial
> conversion chip,
> then performance is going to matter, as that device has a buffer which needs
> to be
> emptied X times a second.
>
> 2) You say you're using qemu-kvm 1.1 rc3, do you have any additional patches
> on top
> of that? Unfortunately the chardev flowcontrol spice needs both for its
> agent and
> for usbredir is still not upstream :| usbredir will not be very reliable
> without
> chardev flowcontrol. Can you try using my qemu git tree here:
> http://cgit.freedesktop.org/~jwrdegoede/qemu/log/?h=qemu-kvm-1.0-usbredir
>
> Note that you need to use the qemu-kvm-1.0-usbredir branch, I'l try to
> rebase
> the chardev flowcontrol patches on top of 1.1-rc# one of these days.
>
> Regards,
>
> Hans


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