"The Device Does not recognize the command"

Question

"The Device Does not recognize the command"

Why i try to load a driver using OSR Loader. 

How can i find the bug inside my code. Its not a crashdump.

Thanks.

Answer 1

Are you saying that you get a failure when you try to load the driver with the OSR loader?  If this is a plug and play driver the loader will not work.   Or are you saying you loaded the driver, and you are getting this error trying to issue a command?  In that case you need to see what the command is and what your driver does to support it, i.e. it is time to start debugging.

In either case we need more information to help you.

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Don Burn Windows Driver Consulting Website: http://www.windrvr.com

Answer 2

how do i debug a driver?

Answer 3

And issue number 2.

Answer 4

Assuming this is a driver that you have the source to, then the best solution is to use Windbg to debug the driver.  See https://msdn.microsoft.com/en-us/library/windows/hardware/ff551063(v=vs.85).aspx  You will need two systems (these can be virtual or physical) to debug, but this gives you full control.

A poorer approach is to use DebugView https://technet.microsoft.com/en-us/sysinternals/debugview and add DbgPrint statements to the driver to see what is happening.

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Don Burn Windows Driver Consulting Website: http://www.windrvr.com

Answer 5

If i can't load driver how i supposed to print messages from DbgView!

Answer 6

If the problem is loading, then you need to enable SetupAPI logging see https://msdn.microsoft.com/en-us/library/windows/hardware/ff550887%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396   The log should tell you what the problem is, but worst case post it here.

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Don Burn Windows Driver Consulting Website: http://www.windrvr.com