Do we need to create Virtual devices in Windows 2000 if we want to work with Windows 2000 1394 drivers like 1394bus

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Q. 1. Do we need to create Virtual devices in Windows 2000 if we want to work with Windows 2000 1394 drivers like 1394bus.sys and ohci1394.sys. Please explain if we need them. I think a higher driver like 1394diag that can accept the request from User Application and call 1394bus is all we need. I think virtual devices are needed only in Windows XP. 2. I use windbg command 'ed ohci1394!ohcidebuglevel 5' to elevate ohci debug level for more prints, I still get very few prints. Is the driver has very few prints. What can I do for more prints from driver. I am using checked version of ohci1394.sys

A. With the DDK, it comes a virtual device driver. It provides the same interface as Diag. I do not fully understand how the driver works. But it coexist with other driver stacks.

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