INT 14 - FOSSIL - INITIALIZE DRIVER
AH = 04h
DX = port number
optionally BX=4F50h
ES:CX -> byte to be set upon ^C
Return: AX = 1954h (if successful)
BL = maximum function number supported (excluding 7Eh and above)
BH = revision of FOSSIL supported
DTR is raised
Note:   the word at offset 6 in the interrupt handler contains 1954h, and the
following byte contains the maximum function number supported
SeeAlso: AH=1Ch

See also: 1405

1404 - FOSSIL - INITIALIZE DRIVER