INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_SET_ATTR" - SET DEVICE ATTRIBUTES
	AX = 020Ch
	BP = driver ID (see #03741)
	BX,CX = new attributes
	---for V_LTOUCH, V_LPOINTER---
	    BX = new logical width
	    CX = new logical height
Return: AH = status (see #03744)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0208h,AX=020Ah