FIX: Low-speed or full-speed devices do not work if they are connected to a Windows Embedded CE 6.0-based device that works as a USB host

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Article ID: 958341 - View products that this article applies to.
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SYMPTOMS

Low-speed or full-speed devices do not work if they are connected to a Windows Embedded CE 6.0-based device that works as a USB host. However, this problem does not occur for a high-speed device.

CAUSE

This problem occurs because the enhanced host controller interface (EHCI) driver configures the speed of all the devices that are connected to the Windows Embedded CE 6.0-based device as high.

RESOLUTION

Software update information

A supported software update is now available from Microsoft as Windows CE 6.0 Platform Builder Monthly Update (October 2008). You can confirm this by scrolling to the "File information" section of this article. The package file name contains the product version, date, Knowledge Base article number, and processor type. The package file name format is:
Product version-yymmdd-kbnnnnnn-processor type
For example: Wincepb50-060503-kb917590-armv4i.msi is the ARMV4i Windows CE 5.0 Platform Builder fix that is documented in KB article 917590 and that is contained in the May 2006 monthly update. To resolve this problem immediately, click the following article number for information about obtaining Windows CE Platform Builder and core operating system software updates:
837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products

Prerequisites

This update is supported only if all previously issued updates for this product are also installed.

Restart requirement

After you apply this update, you must perform a clean build of the whole platform. To do this, use one of the following methods:
  • On the Build menu, click Clean, and then click Build Platform.
  • On the Build menu, click Rebuild Platform.
You do not have to restart the computer after you apply this update.

Update replacement information

This update does not replace any other updates.

File information

The English version of this package has the file attributes (or later file attributes) that are listed in the following table.
Collapse this tableExpand this table
File nameFile sizeDateTime
Wincepb60-081013-kb958341-armv4i.msi1,551,87213-Oct-200821:02
Wincepb60-081013-kb958341-mipsii.msi1,511,93613-Oct-200821:02
Wincepb60-081013-kb958341-mipsii_fp.msi1,513,47213-Oct-200821:02
Wincepb60-081013-kb958341-mipsiv.msi1,525,24813-Oct-200821:02
Wincepb60-081013-kb958341-mipsiv_fp.msi1,525,76013-Oct-200821:02
Wincepb60-081013-kb958341-sh4.msi1,484,80013-Oct-200821:02
Wincepb60-081013-kb958341-x86.msi1,360,38413-Oct-200821:02
The English version of this update 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.
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File nameFile sizeDateTimePath
Windows embedded ce 6.0_update_kb958341.htm7,94513-Oct-200820:45
Chw.cpp75,55510-Oct-200800:04public\common\oak\drivers\usb\hcd\usb20\ehci
Ehcdmdd.lib816,46410-Oct-200800:01public\common\oak\lib\armv4i\debug
Ehci_lib.lib1,507,53010-Oct-200800:01public\common\oak\lib\armv4i\debug
Ehcdmdd.lib470,90810-Oct-200800:01public\common\oak\lib\armv4i\retail
Ehci_lib.lib759,79810-Oct-200800:01public\common\oak\lib\armv4i\retail
Ehcdmdd.lib789,97610-Oct-200800:02public\common\oak\lib\mipsii\debug
Ehci_lib.lib1,465,89210-Oct-200800:02public\common\oak\lib\mipsii\debug
Ehcdmdd.lib449,17210-Oct-200800:02public\common\oak\lib\mipsii\retail
Ehci_lib.lib739,27410-Oct-200800:02public\common\oak\lib\mipsii\retail
Ehcdmdd.lib790,04210-Oct-200800:02public\common\oak\lib\mipsii_fp\debug
Ehci_lib.lib1,466,01610-Oct-200800:02public\common\oak\lib\mipsii_fp\debug
Ehcdmdd.lib449,22610-Oct-200800:02public\common\oak\lib\mipsii_fp\retail
Ehci_lib.lib739,38610-Oct-200800:02public\common\oak\lib\mipsii_fp\retail
Ehcdmdd.lib796,20810-Oct-200800:02public\common\oak\lib\mipsiv\debug
Ehci_lib.lib1,477,38810-Oct-200800:03public\common\oak\lib\mipsiv\debug
Ehcdmdd.lib452,54410-Oct-200800:02public\common\oak\lib\mipsiv\retail
Ehci_lib.lib746,19410-Oct-200800:03public\common\oak\lib\mipsiv\retail
Ehcdmdd.lib796,27410-Oct-200800:03public\common\oak\lib\mipsiv_fp\debug
Ehci_lib.lib1,477,51210-Oct-200800:03public\common\oak\lib\mipsiv_fp\debug
Ehcdmdd.lib452,59810-Oct-200800:03public\common\oak\lib\mipsiv_fp\retail
Ehci_lib.lib746,30610-Oct-200800:03public\common\oak\lib\mipsiv_fp\retail
Ehcdmdd.lib702,57810-Oct-200800:03public\common\oak\lib\sh4\debug
Ehci_lib.lib1,294,25610-Oct-200800:04public\common\oak\lib\sh4\debug
Ehcdmdd.lib415,15210-Oct-200800:03public\common\oak\lib\sh4\retail
Ehci_lib.lib682,22610-Oct-200800:03public\common\oak\lib\sh4\retail
Ehcdmdd.lib650,54210-Oct-200800:01public\common\oak\lib\x86\debug
Ehci_lib.lib1,235,65210-Oct-200800:01public\common\oak\lib\x86\debug
Ehcdmdd.lib392,59810-Oct-200800:01public\common\oak\lib\x86\retail
Ehci_lib.lib651,04810-Oct-200800:01public\common\oak\lib\x86\retail

STATUS

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

MORE INFORMATION

For more information about the EHCI driver, visit the following Microsoft Developer Network (MSDN) Web site:
http://msdn.microsoft.com/en-us/library/aa925281.aspx
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Properties

Article ID: 958341 - Last Review: November 11, 2008 - Revision: 1.0
APPLIES TO
  • Windows Embedded CE 6.0
Keywords: 
kbfix kbexpertiseadvanced kbqfe KB958341

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