[libvirt-users] LXC + USB passthrough = Operation not permitted

Daniel P. Berrange berrange at redhat.com
Tue Apr 15 08:31:52 UTC 2014

On Mon, Apr 14, 2014 at 02:10:14AM +0000, WANG Cheng D wrote:
> Dear Fil,
> I am not sure if my answer can help you.
> I had ever asked a similar question to Daniel and I was using a thirty-party
> card. As a container uses a shared kernel with the host, so hostdev 
> mode='subsystem' doesn't make sense. Maybe you can try to use hostdev
> mode='capabilities'. Please see
> http://libvirt.org/formatdomain.html#elementsHostDevCaps

Actually mode='subsystem' is *IS* fully supported for USB devices. It is
only PCI devices where it is not available with LXC.

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