INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CRV_WR_ACK" - ACKNOWLEDGE DEVICE
	AX = 040Ah
	BP = 0114h (driver ID for V_HPHIL)
	BX = device address indicator (see #03760)
	DH = HP HIL device major address
	DL = acknowledge number (specific if 01h-07h, generic otherwise)
Return: AH = status (see #03744)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0406h/BP=0114h,AX=040Ch/BP=0114h