Hi,
The mentioned changes worked for adding a shared folder but while adding usb it gave an error saying:

error: Failed to attach device from /root/test/addingusb.xml 
error: An error occurred, but the cause is unknown 
 
The xml file is given below:

<hostdev mode='subsystem' type='usb'> 
      <source> 
        <vendor id='0x4321'/> 
        <product id='0xfeeb'/> 
      </source> 
</hostdev> 

Can you tell me what shall I do remove this error?


On Fri, Feb 15, 2013 at 12:28 AM, varun bhatnagar <varun292006@gmail.com> wrote:
Thank you so much for the reply and for sharing the patch...I will try this tomorrow and then let you know whether it works or not.....And i'll try removing the <device> tag too.....
Thank you again for the help.... :)


On Thu, Feb 14, 2013 at 2:11 PM, Jiri Denemark <jdenemar@redhat.com> wrote:
On Thu, Feb 14, 2013 at 01:24:32 +0530, varun bhatnagar wrote:
> Hi,
>
> Today I noticed one strange thing. I* *removed the contents of
> *usbSharedFolder.xml
> *and kept it blank. Then I again tried both ways i.e. calling attachDevice
> method using code as well as virsh but again it gave libvir: VirtualBox
> Driver error : out of memory but I was expecting some syntactical error. Is
> this a bug....??

Yes, it's a bug. See
http://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=2e5d7798df56621986bddd588b53827e6557687a
for the patch that is now in libvirt git repository.

> > I am trying to attach a usb device to my virtualbox node using libvirt. My
> > node is already running, I stop my node and then I am trying to add this
> > usb device.
> > I have a separate xml file defined for usb. It looks like this:
> >
> > *<device>
> > <hostdev mode='subsystem' type='usb'>
> >       <source>
> >         <vendor id='0x4321'/>
> >         <product id='0xfeeb'/>
> >       </source>
> > </hostdev>
> > </device> *

Btw, this XML is not correct. It should contain just the <hostdev>
element.

Jirka