On Mon, Jun 25, 2012 at 07:16:03PM +0200, Michael Hierweck wrote:
> Hi,
>
> it is possible to define a domain along with several usb host
> controllers, e.g.
>
> <controller type='usb' index='0' model='ich9-ehci' />
> <controller type='usb' index='1' model='ich9-uhci' />
>
> How to distinguish between those controllers/busses when adding input or
> host devices such as
>
> <input type='tablet' bus='usb'/>
> <hostdev mode='subsystem' type='usb' managed='no'>
> <source>
> <vendor id='...'/>
> <product id='...'/>
> </source>
> </hostdev>
>
> Without explicit assignment either every device seems to be attached to
> the uhci controller or the domain refuses to start because the tablet is
> attached to the ehci controller implicitly, depending on the order of
> the controller definition (index).
You ought to be able to add the following
<address type='usb' bus='1' port='1'/>
eg
<hostdev mode='subsystem' type='usb' managed='no'>
<source>
<vendor id='...'/>
<product id='...'/>
</source>
<address type='usb' bus='1' port='1'/>
</hostdev>
The 'bus' attribute value on <address> matches up to the 'index'
on the <controller> you want to attach to
Daniel
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