On Sat, Feb 23, 2013 at 01:02:11AM +0800, Lan Tianyu wrote:Oh. Sorry, I didn't say clearly.
> > > > What can I do to debug this ?
> > > Can you attach the output of dmesg with CONFIG_USB_DEBUG?
> >
> > http://paste.fedoraproject.org/3620
> How about"sudo lsusb -s 1:1 -v" or "2:1"?
(12:13:51:davej@t430s:~)$ sudo lsusb -s 1:1
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
(12:13:53:davej@t430s:~)$ sudo lsusb -s 2:1
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub