INT 6F - HP Vectra EX-BIOS - "F_INQUIRE_FIRST" - GET PHYSICAL DRIVER VECTOR
	AH = 0Ah
	BP = 002Ah (driver ID for V_SINPUT)
Return: AH = status (see #03744)
	BX = vector address for first HP-HIL device
	BP,DS destroyed
Note:	all seven HP-HIL devices use consecutive vectors in the
	  HP_VECTOR_TABLE
SeeAlso: AH=00h"HP Vectra",AX=0400h/BP=002Ah,AH=06h/BP=002Ah,AH=08h/BP=002Ah
SeeAlso: AH=0Ch/BP=002Ah