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

[George Dunlap <george.dunlap@xxxxxxxxxxxxx>]

On 31/07/13 11:12, Ian Campbell wrote:
> On Wed, 2013-07-31 at 09:25 +0100, George Dunlap wrote:
> > On 30/07/13 09:23, Ian Campbell wrote:
> > > On Mon, 2013-07-29 at 20:17 +0100, 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?
> > > I think George (CCd) had some plans to improve this initial
> > > implementation in the 4.4 time frame.
> > >
> > > Since it looks like the devices which you pass are given direct to
> > > qemu's -usbdevice option it seems like host:bus.addr should work too.
> > > "Supporting" this option is perhaps just a docs patch away?
> > Yes, I think "host:bus.addr" should work as well.  Let us know if it
> > doesn't.
> If it does then we should add it to our docs as something which we
> support passing on to qemu.
Gordan, did you try this?

 -George


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