Re: [Xen-devel] Bug: USB Bridge Will Not PassThru

[merc1984@xxxxxx]

On Tue, Jun 17, 2014, at 23:48, Pasi Kärkkäinen wrote:

On Tue, Jun 17, 2014 at 11:00:31PM -0700, merc1984@xxxxxx wrote:

 

I have a device which is a programmable bridge by Cirrus Semiconductor.

It converts parallel TTL to USB2.  I've built udev rules to upload its

firmware when detected (by VID/PID), and to set the permissions and a

systemd alias of its new identity after the firmware is loaded.

...

Are you using qemu-traditional or qemu-upstream for this HVM guest?

 

Note that qemu-traditional only supports USB 1.1 emulated passthru,

while qemu-upstream also supports USB2 and USB3.

 

Using qemu-xen-traditional, as I must have VGA passthrough.  This USB bridge is a USB2 device and must work at those speeds.  Is this going to be possible?

 

More info in my next email.

 

 

 

 

 

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