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SubjectRe: pl2303 - pl2303_open - failed submitting interrupt urb, error -28
On Wed, Dec 03, 2008 at 07:47:25AM -0800, Greg KH wrote:
> I would suggest using a USB 1.1 hub instead if you have to use this kind
> of hardware set up.

It is nearly impossible to buy that kind of hardware at the current
time.

> I think the core is just not able to schedule so many interrupt urbs
> with such a setup, running USB 1.1 devices behind a USB 2.0 hub like
> this is a very difficult thing to do.
>
> Sorry I don't have a better solution.

Is it possible to disable USB 2.0 for selected links?

Greetings
Marc

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