*Problem - I have a portable USB device made for Universal Host
Controller Interface (UHCI), and I need it to work on a computer's USB
port that has an Open Host Controller Interface (OHCI). Currently, the
USB device only works on UHCI controllers. The software driver used is
Microsoft's usbser.sys.

*Constraints - The OHCI computer with the problem is a laptop, so
installing a PCI card is not a choice. Redesigning the USB device at
all is not an option. Solutions that include opening up the laptop at
all are strongly discouraged.

*Recommended Solutions - USB hubs and PCMCIA cards have given me
limited luck, so maybe it just means finding the right brand or model
of hub.

*Actual Question - What retail device would allow the UHCI USB device
to work in the OHCI USB port? To receive credit, the answer must
include the manufacturer and model of the device, where it can be
purchased, and how expensive it is. Solutions that do not require a
device (ie~ changing a setting in the *.inf driver file) are
acceptable.

*Useful info: 
(Note: This product seems to have the same problem.)
http://www.intel.com/support/createshare/camerapack/v4/pocket/sb/cs-016466.htm

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Request for Question Clarification by gregaw-ga on 26 Jul 2006 05:51 PDT

I did some looking and found several hubs that claimed to support both
UHCI and OHCI.  Here is one:

Link Depot - Model USH-2141B
Cost: $11.99
http://www.newegg.com/Product/Product.asp?Item=N82E16817334001&ATT=17-334-001&CMP=OTC-Froogle

I have no way to test this device for your situation.  What USB hubs
have you tried before?  Did they also claim to be compliant with both
standards?

In theory the above device should work.  I realize that doesn't
necessary help you.  Any additional information on what you have tried
might help to narrow it down.

Thanks!

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Clarification of Question by syphennedcheese-ga on 31 Jul 2006 14:22 PDT

Thanks for that information. I'm waiting for the hub to come in the
mail, and will let you know, and give you credit, if it worked.

I have tried a generic USB hub that works with some other computers,
but it has not affect on others.

I have also tried a PCMCIA card from Micro Innovations, but that has a
OHCI controller. I've heard its worked when combined with the generic
hub, but I have only seen it stall the computer until something is
disconnected.
(http://www.mic-innovations.com/details.cfm?id=USB740R) 

The PCI card from Micro Innovations with a VIA controller does fix the
problem, but that is only a solution for desktops.
(http://www.mic-innovations.com/details.cfm?id=USB640A)