Mapping Method of btl information to device letters

Hi,
I need to make a list of all the auxiliary storage devices attached in a
given NT/2000 machine. I am using DeviceIoControl call with
IOCTL_SCSI_GET_INQUIRY_DATA for each bus (scsi0:, scsi1:…) to fetch the
Bus target lun information for the devices connected. I am unable to
co-relate the results obtained to device access formats either
physicaldrive0, tape0 or cdrom0 or to the drive letters for disks.
Requesting clues/help

Thanks
Ganesh