usbhub20.sys not included in Windows XP sp2

  • Thread starter Thread starter wnewmyer
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wnewmyer

I'm trying to get my Targus USB 2.0 hub to run at USB 2.0 speed.
Everything I've located on the internet indicates that Windows XP
service pack 2 should include the necessary files to install it at 2.0
speed. It always installs intself as "Generic Hub" instead of "Generic
Hub on a 2.0 bus" which is what it's supposed to do. I searched my hard
drive for the drivers but usbhub20.sys doesn't exist.

Anyone have any suggestions?
Thanks.
Bill
 
If you plugged-in your USB 2.0 hub to an existing USB 1.1 port,
it not going to run at 2.0 speeds. It needs a USB 2.0 compliant connection
for maximum speed.

If you have a notebook computer:

Suggestions:

The DUB-C2 is a Hi-Speed USB 2.0 2-port CardBus adapter that
upgrades notebook computers to the new and faster USB standard.
http://www.dlink.com/products/?sec=1&pid=151

and

http://www.usb-2-0.com/dub-c2.html

Adaptec Duo Connect USB 2.0 + FireWire CardBus
http://www.usb-2-0.com/2045100.html

If you have a desktop computer, you'll need to purchase
and install a USB 2.0 compliant PCI card and then connect
the hub to it.

USB 2.0 - Hi-Speed USB - FAQ
http://www.everythingusb.com/usb2/faq.htm

--
Carey Frisch
Microsoft MVP
Windows XP - Shell/User
Microsoft Newsgroups

Get Windows XP Service Pack 2 with Advanced Security Technologies:
http://www.microsoft.com/athome/security/protect/windowsxp/choose.mspx

-------------------------------------------------------------------------------------------

:

| I'm trying to get my Targus USB 2.0 hub to run at USB 2.0 speed.
| Everything I've located on the internet indicates that Windows XP
| service pack 2 should include the necessary files to install it at 2.0
| speed. It always installs intself as "Generic Hub" instead of "Generic
| Hub on a 2.0 bus" which is what it's supposed to do. I searched my hard
| drive for the drivers but usbhub20.sys doesn't exist.
|
| Anyone have any suggestions?
| Thanks.
| Bill
 
Thanks for the reply. I have a USB 2.0 compliant desktop computer.
All of the ports running on the desktop are USB 2.0. I have plugged in
a USB Hub that is 2.0 compliant but it isn't being recognized by
Windows XP as a USB 2.0 Hub. I believe the driver will load as
"Generic Hub on USB 2.0 bus". This driver does not exist in SP2 and I
don't know how to get it.

So to summarize, my USB controller on the desktop motherboard does run
USB 2.0 but the USB 2.0 Hub does not load the proper drivers to run at
USB 2.0.

Any help is appreciated!

Bill
 
Here's the instructions from the Targus users manual regarding
successful installation in Windows XP:

Verifying Device is Installed
Windows® Operating System
To check that the hub is installed properly, use Device Manager
to locate the Generic USB Hub on USB 2.0 Bus device.
To access Device Manager for the Windows® 98/Me operating
system, right-click My Computer, Properties, and then click the
Device Manager tab.
For the Windows® 2000/XP operating system, right-click My
Computer, Properties, click the Hardware tab, then click the
Device Manager button.
To test that the hub is working properly, in the Device Manager
window:
1 Select the Generic USB Hub on USB 2.0 Bus device.
2 Click the Properties button or icon, depending on your
operating system.
 
I do not see any USB 2 hubs in my XP Pro set up. I have two USB 2 hubs and
they just show up as "Generic USB Hubs". I do know that they are working at
USB 2 since my USB 2 devices seem to work correctly.


Here's the instructions from the Targus users manual regarding
successful installation in Windows XP:

Verifying Device is Installed
Windows® Operating System
To check that the hub is installed properly, use Device Manager
to locate the Generic USB Hub on USB 2.0 Bus device.
To access Device Manager for the Windows® 98/Me operating
system, right-click My Computer, Properties, and then click the
Device Manager tab.
For the Windows® 2000/XP operating system, right-click My
Computer, Properties, click the Hardware tab, then click the
Device Manager button.
To test that the hub is working properly, in the Device Manager
window:
1 Select the Generic USB Hub on USB 2.0 Bus device.
2 Click the Properties button or icon, depending on your
operating system.
 
It appears that my USB 2.0 is properly installed and operating. If I
plug a USB flash drive directly into the computer it runs at 2.0 speed.
If I plug the hub into the computer, it complains that I have plugged
a 2.0 device into a 1.1 plug. I'm very confused. The Hub is recognized
as a 2.0 device but wants to install itself as a 1.1 device. I've
tried every plug in my computer and also tried it on my brand new Dell
latop with the same result. It appears to be a problem with the USB
hub and not the desktop computer. Still could be a problem with the
device drivers for the USB on the computer but dont' think so since a
brand new laptop has the same problem. The USB hub is a Targus PAUH200
if that helps.

Thanks again.
Bill
 
Ok........Finally got it to work!!!! Here's the
solution....ready???.........I unplugged the external power supply to
the USB hub!

Don't know why but as soon as I did that the USB hub was recognized by
the USB 2.0 controller and given a port with USB 2.0 speed. All device
that are connected to it are now at 2.0 speed.

Hopefully maybe someone else can use this information!

Thanks to all for your help.
Bill
 
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