[Spice-devel] Questions on usbredir + XSpice

[Jeremy White]

While I'm researching, I thought I'd look into the next challenge for 
XSpice - usb device redirection.

It faces similar challenges to the CAC card stuff.  That is, my sense is 
that the usbredir library and utility set is all about reading client 
machine USB device information and relaying it through to qemu, which 
then exposes it as a 'real' device to the guest OS.

Again, with XSpice, we don't have qemu :-(.

Ideally, we'd find some mechanism to inject a usb device into the system 
running XSpice.

I've done some further research, and the usbip project would seem 
useful.  It was here:
    http://usbip.sourceforge.net/
but apparently is now in the kernel.

If we use that, then the challenge would appear to be translating the 
protocols.

Alternates:
   1.  Use usbip end-to-end
        I'd like to avoid this; there are benefits to having all spice 
traffic go over the same channel
   2.  ???  Insight appreciated <grin> ???
       (I can't help but feel there are other methods for simulating a 
USB device, but I'm fairly ignorant of this space).

Cheers,

Jeremy