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List: centos-virt
Subject: Re: [CentOS-virt] Hot adding USB devices to guests at a fixed address
From: Stephen Harris <lists () spuddy ! org>
Date: 2013-11-27 21:50:33
Message-ID: 20131127215033.GA29451 () mercury ! spuddy ! org
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On Tue, Nov 26, 2013 at 11:45:43AM -0500, R P Herrold wrote:
> On Tue, 26 Nov 2013, Stephen Harris wrote:
>
> > % cat /etc/udev/rules.d/90-owon.rules
> > ACTION=="add", \
> > SUBSYSTEM=="usb", \
> > SYSFS{idVendor}=="5345", \
> > SYSFS{idProduct}=="1234", \
> > RUN+="/usr/bin/virsh attach-device XP_VM1 /etc/libvirt/HotPlug/owon.xml"
>
> > Now this works; I plug the device in and the guest sees it.
>
> most USB persistent enumeration are done by the device serial
> number, which should appear along with the Vendor and Product.
>
> Can you expose that through the udev rules as well?
udev merely triggers virsh to expose the device; the actual connection
of the device into the VM is done by the "attach-device" rule.
However I don't seem to be able to see the serial number inside the VM
and I can't work out how to expose it.
Hmm.
--
rgds
Stephen
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