Re: "lsusb -vvv" returns "unrecognized" - why?

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On Sun, May 30, 2010 at 9:15 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
> On Sun, 30 May 2010, Xiaofan Chen wrote:
>
>> > The 09 21 thingy is the HID Class Specifif Descriptor.
>> > Somehow I believe it used to work.
>> >
>>
>> An example:
>> http://www.microchip.com/forums/fb.aspx?m=377479
>>
>> HID Device Descriptor:
>>          bLength                 9
>>          bDescriptorType        33
>>          bcdHID               1.11
>>          bCountryCode            0 Not supported
>>          bNumDescriptors         1
>>          bDescriptorType        34 Report
>>          wDescriptorLength     127
>>          Report Descriptor: (length is 127)
>
> That's right; I vaguely remember it working in the past.  What could
> have changed?
>

It seems to me that Ubuntu 9.10 (32bit and 64bit) is the problem,
at least for me. Not sure the distro Danny is using.

I just did some quick tests under Ubuntu 9.10 64bit (my laptop)
and Ubuntu 9.10 32bit (my desktop) and they both have the
same problem. The git version of usbutils does not seem to help.
Kind of strange.

Ubuntu 10.04 (64bit, my desktop) seems to work fine.


-- 
Xiaofan http://mcuee.blogspot.com
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