On Wed, Dec 16, 2015 at 09:59:58PM +0100, Ruben Torrero Marijnissen wrote:
> Hi,
>
Hello,
> I'm trying to assign a complete USB Hub to my Windows 10 guest, using
> libvirt 1.3. Following the documentation, I tried adding the following
> to the definition of my guest:
>
> ...
> <devices>
> ..
> <hub type='usb'>
the <hub> element is for creating virtual hubs,
> <address type='usb' bus='1' port='10.2'/>
The 'bus' here needs to match the 'index' of an exisitng <controller
type='usb'> in the domain XML.
> </hub>
> ..
> </devices>
>
> To get the correct port, I used lsusb:
>
> [root@nobill-main 004]# lsusb -t
> /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
> /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M
> /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/10p, 5000M
> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M
> |__ Port 5: Dev 110, If 0, Class=Hub, Driver=hub/4p, 480M
> |__ Port 1: Dev 52, If 0, Class=Hub, Driver=hub/4p, 480M
> |__ Port 1: Dev 53, If 0, Class=Human Interface Device,
> Driver=usbhid, 12M
> |__ Port 1: Dev 53, If 1, Class=Human Interface Device,
> Driver=usbhid, 12M
> |__ Port 3: Dev 54, If 0, Class=Human Interface Device,
> Driver=usbhid, 12M
> |__ Port 3: Dev 54, If 1, Class=Human Interface Device,
> Driver=usbhid, 12M
> |__ Port 3: Dev 54, If 2, Class=Human Interface Device,
> Driver=usbhid, 12M
> |__ Port 4: Dev 55, If 1, Class=Human Interface Device,
> Driver=usbhid, 12M
> |__ Port 10: Dev 117, If 0, Class=Hub, Driver=hub/4p, 480M
> |__ Port 2: Dev 118, If 0, Class=Hub, Driver=hub/4p, 480M
> |__ Port 11: Dev 8, If 0, Class=Human Interface Device,
> Driver=usbhid, 1.5M
> |__ Port 11: Dev 8, If 1, Class=Human Interface Device,
> Driver=usbhid, 1.5M
>
> (I want to assign port 10 in bus 1, the one that (still) has nothing
> attached to it.
>
For passing a host USB device to the guest, use <hostdev>:
<hostdev mode='subsystem' type='usb'>
<source>
<address bus='1' device='10'/>
</source>
</hostdev>
But in my testing, passing a USB hub did not work - neither the hub
nor the devices on it were visible in the guest.
Jan
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