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From: | Gerd Hoffmann |
Subject: | Re: [Spice-devel] [Qemu-devel] RFC: usb redirection over the network, interesting outside of spice? |
Date: | Tue, 30 Nov 2010 09:54:07 +0100 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100827 Red Hat/3.1.3-1.el6 Thunderbird/3.1.3 |
On 11/29/10 18:49, Anthony Liguori wrote:
On 11/29/2010 11:37 AM, Attila Sukosd wrote:Hi, I guess it should be abstract enough to support multiple back-ends, be it a kernel driver or through libusb?Is this something that should just live in libusb? If what libusb presented QEMU was actually implemented as USB-over-IP, QEMU wouldn't know the difference at all. I think it would also be very useful to be able for libusb-based applications to work with remote devices. What is unclear to me is what role QEMU would play in setting up remove USB-over-IP devices. Pushing it down to the libusb layer completely takes QEMU out the picture which creates a clean separation layer.
Well, I think the management is actually the most tricky thing here. Unfortunaly this isn't covered very well in the usb/ip papers. Also there seems to be no protocol specification linked from the website.
Being compatible at protocol level makes sense for direct connections (if possible). For the usb-over-vnc and vnc-over-spice cases this probably isn't going to work though.
cheers, Gerd
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