You may experience any of the following symptoms:
- Your Hi-Speed Universal Serial Bus (USB) 2.0 device does
not operate in Hi-Speed mode.
- If you plug in a Hi-Speed USB 2.0 device, you receive any
of the following warnings:
The Generic USB Hub is a
HI-SPEED USB device and will function at reduced speed when plugged into a
HI-SPEED USB Device Plugged into non-HI-SPEED USB
Hub. A HI-SPEED USB device is plugged into a non-HI-SPEED USB hub.
- An Enhanced Host Controller Interface-compliant
(EHCI-compliant) USB host controller appears in Device Manager with an
exclamation point in a yellow circle, or with status code 28.
These symptoms occur because Windows XP does not include
support for EHCI host controllers.
To resolve this problem, obtain the latest service pack for Windows XP. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
How to obtain the latest Windows
XP service pack
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows XP Service
For additional information about USB 2.0 support, visit the
following Microsoft Web site: