Int 13 Fn 12  - Future Domain Scsi Controller - Stop Scsi Disk             [d]

   AH = 12h
   DL = hard drive ID

Return: CF set on error
   AH = status code (see AH=01h)

Notes: available at least on the TMC-870 8-bit SCSI controller BIOS v6.0A
   if the given drive is a SCSI device, the SCSI Stop Unit command is sent
     and either "Disk prepared for shipping" or "Disk Stop command failed"
     is displayed
   the TMC-950 does not support any Future Domain BIOS calls; instead,
     it provides a full CAM implementation (see INT 4F/AX=8100h)