INT 15 - later PS/2s - RETURN DEVICE DESCRIPTOR TABLE (DDT) ENTRY BY DEVICE ID
AX = D104h
BX = entry number at which to start searching
CX = requested device ID
DX = 0000h (reserved, must be set to 0)
ES:DI -> buffer to contain DDT entry (see #00535)
Return: AH = return code (see #00534)
BX = DDT entry number where device ID was found, or total entries
plus 1 if port was not found.
CF set on error
CF clear on success
ES:DI buffer filled with DDT entry
Desc: the DDT is searched from the specified entry for the device ID in CX,
and the first entry in which it is found is returned.