How to Determine Which USB Controller Is Installed (242860)

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry

SUMMARY

This article describes how to identify your USB Host controller to determine if it is supported by Windows 2000.

After you identify your USB Host controller, check the Windows Hardware Compatibility List (HCL) to see if your controller is supported. You can check the HCL at the following Microsoft Web site:

http://www.microsoft.com/hcl

MORE INFORMATION

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To identify your USB Host controller, start Registry Editor (Regedt32.exe), and then locate the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI

Under this key are several keys with names similar to:

VEN_1002&DEV_4742&SUBSYS_00000000&REV_5C

Under each of these keys is a key with a name similar to:

3&225b1d41&0&0008

Click the key under the first VEN... key. In the right pane, note the data values for the following registry values:

DeviceDesc
HardwareID
Mfg

The DeviceDesc value is a REG_SZ value that contains a description of the device. The HardwareID value is a REG_MULTI_SZ value that contains the hardware revision of the chip set used in the device. The Mfg value is a REG_SZ value that contains the name of the hardware manufacturer.

Check the DeviceDesc value in the key under each VEN... key until you locate the key for the USB controller.