> Can you just test all your hardware and find combinations of
> keyboards/hubs that work together?
We have a lot of these keyboards/hubs that are incompatible. We've just
got a few or the "working" hardware, and we won't be able to use them. Of
course, there are combinations that work together (the keyboard works with
all hubs except this one).

> Well, the keyboard already _is_ USB 1.1.

> There is no way to tell a USB-2.0 hub to behave as a USB-1.1 hub.

> On the other hand, if you don't have any high-speed USB devices (other
> than the hub itself) plugged into your computer, you could try doing
> "rmmod ehci-hcd".  This would force everything to run at full-speed or
> low-speed, and then maybe the keyboard/hub combination would work better.

We've already tested this. We've just tsted with UCHI. We didn't have the
EHCI module.

I've found this link:
http://www.mail-archive.com/linux-usb-users@lists.sourceforge.net/msg14220.html
Do you think that increasing the timeouts would solve my problems? Which
timeout should I increase? I guess I'm gonna test that now.

Thanks,

Paulo.

> On Thu, 6 Jul 2006, Paulo R. Zanoni wrote:
>
>> More information:
>>
>> Mice work when connected to the hub. Only keyboard doesn't.
>> Some keyboards work with this hub, some 2.0 hubs work with this
>> keyboard.
>> I have A LOT (really) of these keyboards/hubs, that's why I'm trying to
>> solve the problem without changing the hardware.
>>
>> Do you guys think there is a way (even if you don't know wich) to make
>> it
>> work without changing the hardware?
>
> I don't know of any way.
>
> Can you just test all your hardware and find combinations of
> keyboards/hubs that work together?
>
> Alan Stern
>
>



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