From: Gerd Hoffmann <kraxel@redhat.com>
To: Lei Li <lilei@linux.vnet.ibm.com>
Cc: qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [RFC] Add serial number to usbdevice when passthrough to VM
Date: Wed, 16 Jan 2013 08:56:05 +0100 [thread overview]
Message-ID: <50F65D15.3030803@redhat.com> (raw)
In-Reply-To: <50F6543F.4060502@linux.vnet.ibm.com>
On 01/16/13 08:18, Lei Li wrote:
> Hi guys,
>
> Currently we can passthrough the host USB device to the virtual
> machine. This is done like:
>
> –usbdevice host:1234:5678, where 1234 is vendor id, 5678 is product
> id.
>
> But there is a problem. If there are two identical USB devices,
> where the vendor id and the product id is the same. It's not possible
> to direct one USB device to VM1 and the second USB device to VM2.
You can assign devices by physical port.
See docs/usb2.txt
cheers,
Gerd
next prev parent reply other threads:[~2013-01-16 7:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-16 7:18 [Qemu-devel] [RFC] Add serial number to usbdevice when passthrough to VM Lei Li
2013-01-16 7:56 ` Gerd Hoffmann [this message]
2013-01-17 4:45 ` Lei Li
2013-01-17 8:34 ` Gerd Hoffmann
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