rliou@... wrote:
>
> I need to detect if my USB 2.0 device is connected through a USB 1.1
> hub so I can handle the device accordingly. The value of bcdUSB in the
> descriptor and device qualifier always shows me 200H(USB 2.0) with or
> without the hub. How do I get the actual USB speed for a device with a
> low/full speed hub in the middle?
>
Do you have an "other speed configuration descriptor"? If so, you
should be able to fetch the current configuration descriptor and see
which one you got. Your device should return the "other speed"
descriptor if it connects as USB 1.1.
--
Tim Roberts,
timr@...
Providenza & Boekelheide, Inc.
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