A USB device takes a long time to resume from selective suspend mode on a Windows Vista-based computer that uses UHCI USB controllers

A USB device takes a long time to resume from selective suspend mode on a Windows Vista-based computer that uses UHCI USB controllers

Article ID : 935782
Last Review : August 29, 2007
Revision : 2.0
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On a Windows Vista-based computer that uses Universal Host Controller Interface (UHCI) USB controllers, a USB device takes a long time to resume from selective suspend mode. Usually, the USB device takes 500 to 1,200 milliseconds (ms) to resume from this mode.

Therefore, USB devices that are attached to the UHCI USB controller may take a long time to respond. For example, assume that you are using a fingerprint reader to capture user fingerprints. The fingerprint reader is attached to the UHCI USB controller on a Windows Vista-based computer. If the fingerprint reader is in selective suspend mode, the system may not capture the fingerprint after you swipe a finger on the receiver of the fingerprint reader. This behavior occurs because the fingerprint reader takes a long time to resume from selective suspend mode. You must swipe your finger again for the fingerprint reader to capture the fingerprint.

Note Typically, it takes about 20 ms to resume from selective suspend mode when you use either of the following configurations:

• Microsoft Windows XP-based computers that use UHCI USB controllers
• Windows Vista-based computers that use Open Host Controller Interface (OCHI) USB controllers

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This problem occurs because Windows Vista has introduced a design change for the USB driver.

Windows Vista lets individual ports switch to selective suspend mode. However, the resume notification of a USB device that uses an UHCI controller does not trigger an interrupt unless the host controller is in global suspend mode. The resume notification is detected only when the rollover transfer descriptor (TD) is completed. The rollover TD is completed every 1,024 ms. Therefore, the USB device usually experiences a delay of 700 to 800 ms.

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Hotfix information

A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451 (http://go.microsoft.com/?linkid=6294451)

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)


No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista, 32-bit versions
File name File version File size Date Time Platform
Update.mum Not Applicable 2,030 12-Apr-2007 12:04 Not Applicable
X86_usbport.inf_31bf3856ad364e35_6.0.6000.20577_none_bc210c5e1fb72ad9.manifest Not Applicable 5,386 12-Apr-2007 12:05 Not Applicable
Hccoin.dll 6.0.6000.20577 8,704 12-Apr-2007 03:10 x86
Usbd.sys 6.0.6000.20577 5,888 12-Apr-2007 02:24 Not Applicable
Usbehci.sys 6.0.6000.20577 38,400 12-Apr-2007 02:24 x86
Usbhub.sys 6.0.6000.20577 192,000 12-Apr-2007 02:24 x86
Usbohci.sys 6.0.6000.20577 19,456 12-Apr-2007 02:24 x86
Usbport.sys 6.0.6000.20577 223,744 12-Apr-2007 02:24 x86
Usbuhci.sys 6.0.6000.20577 23,040 12-Apr-2007 02:24 x86

Windows Vista, 64-bit versions

File name File version File size Date Time Platform
Amd64_usbport.inf_31bf3856ad364e35_6.0.6000.20577_none_183fa7e1d8149c0f.manifest Not Applicable 5,388 12-Apr-2007 12:10 Not Applicable
Update.mum Not Applicable 2,042 12-Apr-2007 12:04 Not Applicable
Hccoin.dll 6.0.6000.20577 10,752 12-Apr-2007 04:36 x64
Usbd.sys 6.0.6000.20577 7,552 12-Apr-2007 03:02 x64
Usbehci.sys 6.0.6000.20577 48,128 12-Apr-2007 03:02 x64
Usbhub.sys 6.0.6000.20577 266,752 12-Apr-2007 03:02 x64
Usbohci.sys 6.0.6000.20577 24,064 12-Apr-2007 03:02 x64
Usbport.sys 6.0.6000.20577 257,024 12-Apr-2007 03:02 x64
Usbuhci.sys 6.0.6000.20577 28,672 12-Apr-2007 03:02 x64

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the Applies to section.

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To determine th type of USB controller that the computer is using, follow these steps:

1. Click Start, type devmgmt.msc in the Start Search box, and then press ENTER.
2. Expand Universal Serial Bus controllers, and then determine the type of USB controller that the computer is using.

For more information about selective suspend mode, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/ms793200.aspx (http://msdn2.microsoft.com/en-us/library/ms793200.aspx)

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 (/Feedback.aspx?kbNumber=824684/) Description of the standard terminology that is used to describe Microsoft software updates

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• Windows Vista Ultimate
• Windows Vista Home Premium
• Windows Vista Home Basic
• Windows Vista Enterprise
• Windows Vista Business
• Windows Vista Business 64-bit Edition
• Windows Vista Ultimate 64-bit Edition
• Windows Vista Home Premium 64-bit Edition
• Windows Vista Home Basic 64-bit Edition
• Windows Vista Enterprise 64-bit Edition

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Microsoft Knowledge Base Article

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