Int 6F Fn 041A  - Hp Vectra Ex-bios - "f_io_ctrl Sf_pass_thru" - Send Dat  [b]

   AX = 041Ah
   BP = 00AEh (driver ID for V_8041)
   BL = byte to send to 8041

Return: AH = status (see #3415)
   BP,DS destroyed

See Also: AH=00h"HP Vectra",AX=040Ah/BP=00AEh,AX=040Eh/BP=00AEh