INT 15 - later PSIBM PS/2, any model/2s - GET NUMBER OF DEVICE DESCRIPTOR TABLE (DDT) ENTRIES AX = D100h DX = 0000h (reserved, must set to 0) Return: BL = size of one DDT entry, in bytes CX = number of DDT entries AH = return code (see #00534) CF set on error CF clear on success SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D101h,AX=D102h,AX=D103h,AX=D104h (Table 00534) Values for return code: 00h success 01h requested DDT entry not found 02h DDT data not valid 86h function not supported