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Re: [Qemu-devel] New function: Remot USB support in qemu

From: Gerd Hoffmann
Subject: Re: [Qemu-devel] New function: Remot USB support in qemu
Date: Thu, 27 Apr 2017 09:07:16 +0200

On Do, 2017-04-27 at 14:30 +0800, address@hidden wrote:
> Mr. Hoffmann,
> Thank you for your time.
> This email will describe a new module that I'd like to commit to the
> qemu code source.
> We call it as remote usb, and this is features:
> 1. real usb device is aside on a windows client.
> 2. keeping a connection between the client and the VMs host OS
> 3. qemu simulate a remote usb device through our remote usb module
> 4. the communication between real usb device and the simulation remote
> usb is based on USB/IP protocol.

qemu supports that already.  It's called usb redirection.

usb redirection can use either plain tcp or a spice channel as
transport.  The spice client supports usb devices on windows clients.

Hans (Cc'ed, usbredir author) looked at the USB/IP protocol and found a
number of deficits and decided to not use it because of that.  I don't
remember the details though.

So I think using the existing usb redirection support is the better
option for you.


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