Re: [Xen-devel] usbdevice option and specifying a specific device

[Gordan Bobic <gordan@xxxxxxxxxx>]

On 07/29/2013 08:17 PM, Gordan Bobic wrote:
> I'm trying to use usbdevice option in the config file (instead of
> passing USB PCI devices), and the documentation says to specify the
> device in the form host:xxxx:yyyy where xxxx:yyyy is the USB
> vendor:device ID.
>
> Except there is a problem with this - I have two identical keyboards and
> mice, one set of which I want to pass to the host, and the other set
> which I want to pass to the guest. Since the xxxx:yyyy will be the same
> for both devices of each type, how can I deterministically specify which
> I want to keep on the host and which I want to pass to the guest?
>
> Is there a way to use something like BusID:DeviceID instead in order to
> provide a more deterministic outcome?
On a related note, the first device gets passed through successfully, 
but the second fails with a warning in qemu-dm log:
Warning: could not add USB device host:1532:002f

My usbdevice list is:

usbdevice = [ 'host:045e:00dd', 'host:1532:002f' ]

I cannot see anything more explanator in any of the other logs - what 
should I be looking for?
Gordan

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