Microsoft KB Archive/813707

= Only One Function Is Enumerated and a Code 10 Error Occurs in Device Manager When You Insert a Multifunction PC Card into a PCMCIA Slot =

Article ID: 813707

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Server

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SYMPTOMS
When you insert a multifunction PC Card into the PCMCIA slot, only one function is enumerated and initialized, the other functions do not work. When this problem occurs, a code 10 error occurs in Device Manager. This problem occurs in certain scenarios, and it depends on how the function drivers connect to the interrupt request (IRQ). If the drivers use the translated resources (as expected), they connect to an IRQ as &quot;exclusive.&quot; This means that the drivers shut out the other function. However, if the drivers explicitly specify &quot;shared,&quot; this problem does not occur. Some drivers may incorrectly specify &quot;shared.&quot;



CAUSE
This problem occurs because when Mf.sys generates resource lists, it does not handle the allocation of device exclusive resources when more than one child device requests a resource that is marked device exclusive on the parent device. Interrupt resource on a multifunction PC Card is an example of a resource that is marked device exclusive on the parent device that must be shared on more than one child device. When a child device requests a device exclusive resource, it does not receive one, and a code 10 error occurs in Device Manager.



Windows XP
To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

322389 How to obtain the latest Windows XP service pack

Windows 2000
To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

Hotfix information
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Windows XP or Windows 2000 service pack that contains this fix.

To resolve this problem immediately, download the fix by clicking the download link later in this article or contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

File information
The English version of this fix has the file attributes (or later) 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 tool in Control Panel.

Windows XP
  Date         Time   Version            Size    File name   Platform ---  06-Feb-2003  01:07  5.1.2600.1167      62,208  Mf.sys      x86 06-Feb-2003 01:07  5.1.2600.1167     132,096  Mf.sys      IA64

Windows 2000
  Date         Time   Version            Size    File name   Platform ---  24-Feb-2003  19:41  5.0.2195.6668      57,264  Mf.sys      x86



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Windows XP
This problem was first corrected in Microsoft Windows XP Service Pack 2.

Windows 2000
This problem was first corrected in Microsoft Windows 2000 Service Pack 4.

Additional query words: PCMCIA, MF.SYS

Keywords: kbhotfixserver kbqfe kbqfe kbwinxpsp2fix kboswin2000fix kbwin2ksp4fix kbddk kbprb KB813707

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