What's the cause of STATUS_INVALID_PARAMETER ?

Hi,

I am developing NDIS-WDM driver for serial port and in the initialization
part I issue the _URB_CONTROL_DESCRIPTOR_REQUEST. However in the
IoCompleteControl routine, I get the status as STATUS_INVALID_PARAMETER.
What is going wrong ?

Is this the problem with wrong URB, or I am accessing wrong device?

Thanking in anticipation,

Regards,
Abhijit


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