In FSFD we get the RealDevice(IRP_MJ_FILE_SYSTEM_CONTROL,IRP_MN_MOUNT_VOLUME
) from pIrpSp->Parameters.MountVolume.Vpb->RealDevice where pIrpSp is a
pointer to IO_STACK_LOCATION. How can we get this in mini filter
IRP_MJ_VOLUME_MOUNT Psuedo IRP
Is this the field for getting the same Data->Iopb->
Parameters.FileSystemControl.VerifyVolume.DeviceObject