INT 16 - KEYBOARD - GET KEYBOARD FUNCTIONALITY
AH = 09h
Return: AL = keyboard functions supported
bit 7: reserved
bit 6:
bit 5:
bit 4: INT 16/AH=0Ah supported
bit 3: INT 16/AX=0306h supported
bit 2: INT 16/AX=0305h supported
bit 1: INT 16/AX=0304h supported
bit 0: INT 16/AX=0300h supported
Note:   this function is only available if bit 6 of the second feature byte
returned by INT 15/AH=C0h is set
SeeAlso: AH=0Ah,INT 15/AH=C0h

See also: 1603

1609 - KEYBOARD - GET KEYBOARD FUNCTIONALITY