qemu.cfg.usb: Set max nest levels of hub device to 5.

Signed-off-by: Feng Yang <fyang@redhat.com>

ID: 1079874

On 12/02/2014 03:45 PM, CongSmile wrote:
>
> In qemu/tests/cfg/usb.cfg:
>
> > @@ -52,6 +53,13 @@
> >                      usb_port_d5 = "2.6"
> >                      usb_port_d6 = "2.7"
> >                      usb_port_d7 = "2.8"
> > +                - max_usb_hub_dev:
> > +                    only usb_boot, usb_reboot
mistake here. should be no  usb_boot, usb_reboot
> > +                    only usb_hub
> > +                    usb_devices += " d1 d2 d3"
> > +                    usb_port_d1 = "2.2"
> > +                    usb_port_d2 = "2.3"
> > +                    usb_port_d3 = "2.4"
>
> Hi fyang,
>
> Does the code means nested usb hub?
> I think it's one usb hub can have 5 usb hubs.
>
Yes it could have 5 device, we already set 2 of them. So only can set
another 3 here. I remember.

> Am I misunderstanding?
>
> Thanks.
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/autotest/tp-qemu/pull/197/files#r21143816>.
>