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Setting this value to 1 disables generation count comparison. Setting this value to 0 enables generation count comparison. The 1394ohci.sys bus driver compares the generation count value in the self_id register of the 1394 controller with the generation count value that is received in the asynchronous receive DMA request context buffer when it processes received asynchronous requests. Any registry values that are specified for a particular 1394 controller override any corresponding globally specified registry values. You can specify all registry values either globally or for a particular 1394 controller. The following table describes the registry values that the new 1394 bus driver supports. represents the instance identification number for each 1394 controller. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class \\ The following registry location contains the individual 1394 controller registry values: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\1394ohci \Parameters

The following registry location contains the global 1394 registry values: The 1394ohci.sys, bus driver first queries the global 1394 registry values and then queries the individual 1394 controller registry values. You can set the 1394-related registry values either globally for all 1394 controllers in the system or individually for each 1394 controller. You can do this by setting certain registry values that it supports. In some situations you might want to override the default behavior of 1394ohci.sys. The 1394ohci.sys bus driver replaces the legacy IEEE bus driver in port/miniport configuration- 1394bus.sys and ochi1394.sys. Windows 7 includes 1394ohci.sys, a new IEEE 1394 bus driver that is implemented by using the kernel-mode driver framework (KMDF).