INT 13 - Adaptec AHA-154xA/Bustek BT-542 BIOS - IDENTIFY SCSI DEVICES AH = 06h Return: AH = status code (see #00234) CF clear if successful AL = first drive supported (80h nonconcurrent operation, 81h concurrent operation) CF set on error Desc: determine the number of the first supported SCSI drive Note: the return value is 80h when two SCSI drives are supported, 81h if only one SCSI drive is installed SeeAlso: AH=08h"PC",#00732 at INT 1A/AX=B102h