1394 Bus Driver in Windows 7

Updated: June 18, 2009

File name: 1394_Windows7.docx
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This paper provides information about IEEE 1394 support in Windows 7 so that 1394 developers can understand the new 1394 bus driver in Windows 7. The 1394 bus driver was rewritten for Windows 7 to provide support for higher speeds and alternative media, as defined in the IEEE-1394b specification. The 1394 bus driver that is included with Windows 7 replaces the 1394 bus drivers that were included with earlier versions of Windows. This paper provides information about the differences between the new 1394 bus driver implementation and the earlier implementation, as well as information about the new functionality that is included in the 1394 bus driver for Windows 7.

This information applies to the Windows 7 operating system.

Included in this white paper:

• New and Legacy 1394 Bus Drivers

• Differences in Functional Behavior

• Retrieving the Contents of a 1394 Node's Configuration ROM

• Gap Count Optimization

• Modifying the Default Behavior

• General DDI Changes

• Determining New or Legacy DDI Support

• Extended Bus Reset Notification DDIs

• PHY Packet Support DDIs

• Retrieve Configuration ROM DDI