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Stream Class SRB Reference

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The class driver uses the HW_STREAM_REQUEST_BLOCK structure to pass SRB requests to the minidriver. In this reference section, pSRB refers to a pointer to a HW_STREAM_REQUEST_BLOCK object. The stream class driver passes this pointer when it calls minidriver-provided callbacks.

SRB requests are either device/instance-specific or stream-specific. Depending on the SRB command, additional parameters may be passed in the HW_STREAM_REQUEST_BLOCK.

See Device-Specific Command Codes and Stream-Specific Command Codes.