INT 33 - LOGITECH MOUSE - GET PARAMETERS AND RESET SERIAL MOUSE
        AX = 246Ch
        ES:DX -> parameter table buffer (see below)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=256Ch

Format of parameter table:
Offset  Size    Description
 00h    WORD    baud rate divided by 100  (serial mouse only)
 02h    WORD    emulation                 (serial mouse only)
 04h    WORD    report rate               (serial mouse only)
 06h    WORD    firmware revision         (serial mouse only)
 08h    WORD    0                         (serial mouse only)
 0Ah    WORD    port                      (serial mouse only)
 0Ch    WORD    physical buttons
 0Eh    WORD    logical buttons