This IOCTL is used by a user-mode application or kernel-mode driver that requires notification when something of interest happens in the virtual miniport. This IOCTL might be used, for example, when a vendor-specific, time-consuming operation such as device discovery completes.
The buffer at Irp->AssociatedIrp.SystemBuffer contains a user-defined structure.
Input Buffer Length
Parameters.DeviceIoControl.InputBufferLength indicates the size, in bytes, of all the input data.
Updated user-defined structures are returned in the buffer at Irp->AssociatedIrp.SystemBuffer.
Output Buffer Length
The length of the buffer.
The Information field contains the number of bytes returned in the output buffer. The Status field indicates the results of the operation.
|Header||ntddscsi.h (include Ntddscsi.h)|