Re: [PATCH 0/4] usbutils fixes for USB 3.0 devices

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On Thu, 9 Sep 2010, Sarah Sharp wrote:

> > Could there be some parse error of the data coming from the root hub since it returns a 2.0 formatted hub descriptor?
> 
> Yes, that's probably the issue.  It should get fixed when I split the
> xHCI roothub into a separate USB 3.0 and USB 2.0 roothub, but I'm not
> sure what to do with kernels that only report the 2.0 formatted
> descriptor.  Maybe lsusb needs to look at the type in the roothub
> descriptor to see how to display it?  I hate to put in a lsusb hack for
> my kernel hack.

How about changing the kernel to return the proper 3.0 hub descriptor, 
and adding a workaround to lsusb so that it can handle the wrong 
descriptor format without crashing.

Alan Stern

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