INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_DISABLE_KBD" - MASK 8041 OBF INT
	AX = 0406h
	BP = 001Eh (driver ID for V_S8259)
Return: AH = status (see #03744)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0402h"SF_DISABLE_SVC",AX=0404h"SF_ENABLE_KBD"
SeeAlso: AX=040Ah"SF_DISABLE_HPHIL"