Microsoft KB Archive/262814

= IEEE 1394 OHCI Driver Does Not Retry Busy Devices Properly =

Article ID: 262814

Article Last Modified on 3/2/2007

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APPLIES TO


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

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This article was previously published under Q262814



SYMPTOMS
You may be unable to connect to an IEEE (Institute of Electrical and Electronics Engineers) 1394 high-performance serial bus-compliant device, such as a digital camera.



CAUSE
This problem can occur if the Ohcil394.sys host controller driver does not retry busy devices enough times.



RESOLUTION
To resolve this problem, obtain the latest service pack for 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

The English version of this fix should have the following file attributes or later:

  Date        Time       Version        Size    File name --  06/14/2000  02:58 PM   5.0.2195.2096  36,848  Ohci1394.sys



STATUS
Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.



MORE INFORMATION
Devices that communicate as specified by the IEEE 1394 specification can respond to requests from the computer with a &quot;BusyX&quot; code. In this case, the device is busy, because of hardware limitations or software interactions in an early generation of the 1394 chipset.

Support for BusyX retries is defined in the IEEE1394-1995 specification and is important for successful computer-to-1394 device communications.

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Additional query words: IEEE 1394 ohci

Keywords: kbhotfixserver kbqfe kbado260fix kbbug kbfix kbwin2000presp2fix KB262814

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