How USB's are enumerated on the XO

Tomeu Vizoso tomeu at tomeuvizoso.net
Mon Jun 23 10:17:50 EDT 2008


2008/6/23 shivaprasad javali <jbsp72 at gmail.com>:
> Hi,
>
>       I have a usb device to be used with my application which does not have
> any unique serial no. I noticed that when I connect two such devices to the
> XO , In the /proc/bus/usb/devices file the Bus for the two remains the same
> but the port no is different for the two. When I connect the same two
> devices to a normal machine running fedora core 7, Its the Bus that changes
> for the two and the port no remains the same.
>
>       The XO that I have is relatively old. So I wanted to know whether this
> is what is expected on the XO or Is it different on the later versions of
> the XO.

I didn't quite understood what you are trying to do, but something
that may help you is to plug and unplug the usb sticks while lshal -m
is running. That may tell you something interesting.

Good luck,

Tomeu



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