Re: [Xen-devel] [PATCH V4 3/7] libxl: add pvusb API

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

George Dunlap writes ("Re: [Xen-devel] [PATCH V4 3/7] libxl: add pvusb API"):
> The "busid" we're talking about here will identify a device at a
> particular *port* in the USB topology; the busid will take whatever is
> plugged into that particular port.  So in the example in my other
> thread, the Yubikey "busid" is 2-3.1.2; but if I were to unplug the
> yubikey and plud my mouse into that port, the mouse would then be at
> 2-3.1.2.

What you have just said contradicts Juergen's assertion that the busid
is not stable across reboots.

I think perhaps the difficulty is that the very first number, the usb
controller number, may not be stable, because it depends on the order
of device discovery.

Ian.

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