This controller's driver is likely implemented as a SCSI miniport
driver. These usually don't support SMART, even if the RAID
functionality is not used.
http://smartmontools.sourceforge.net/#FAQ-win-ata-as-scsi
Christian:
 
Thank you for the confirmation.  I had read that part, but still couldn't believe that it was an absolute inability to get any SMART data at all.  Adaptec is known for SCSI, of course, but still..
 
-- Roy