Yes, I'm connecting a USB to serial device to the host (ubuntu 11.04) and I
want that serial port on my VM .
I tried the solution you have suggested but still same problem , can  not
see the virtual serial port (ttyACM0) on VM but I could see on the HOST .

The following is the line  I have tried .
 RAW = [ type = "kvm",
          data = "<devices><serial type=\"dev\"><source
path=\"/dev/ttyACM0\"/><target port=\"0\"/></serial><console type=\"pty\"
tty=\"/dev/pts/5\"><source path=\"/dev/pts/5\"/><target
port=\"0\"/></console></devices>" ]




On Mon, Sep 12, 2011 at 11:51 PM, Stefan Hajnoczi <stefanha@gmail.com>wrote:

> On Mon, Sep 12, 2011 at 12:35 PM, bala suru <balaqemu@gmail.com> wrote:
> > But I need to connect a some USB device which will create a virtual
> > serialport called /dev/ttyACM0, I cloud not see this on the Vm running ..
> >
> > This XML format I used
> > RAW = [ type = "kvm",
> >           data = "<devices><serial type=\"pty\"><source
> > path=\"/dev/pts/5\"/><target port=\"0\"/></serial><console type=\"pty\"
> > tty=\"/dev/pts/5\"><source path=\"/dev/pts/5\"/><target
> > port=\"0\"/></console></devices>" ]
>
> I am not sure what you are trying to do.
>
> Are you attaching a USB serial device to the host and you would like
> to connect that to the VM's serial port?  In that case you can try
> this domain XML:
>
> <serial type="dev">
>    <source path="/dev/ttyACM0" />
>    <target port="0" />
> </serial>
>
> Stefan
>