## Storage Device Driver Reference

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### Strategy Routine

This routine receives requests from the kernel at task time. It builds a generic IOCtl request packet and sends it to the SCSI driver through the IDC entry point.

The generic IOCtl request contains the following parameters:

FUNCTION CATEGORY
80h

FUNCTION CODE
Represents function to be performed by the SCSI driver.

PARAMETER BUFFER ADDRESS
Contains a pointer to the parameters required for the function to be performed.

DATA BUFFER ADDRESS
Contains a pointer to the data buffer where returned data is stored.