Format of 8516 Touch Screen Function 00h results buffer:
Offset	Size	Description	)
 00h	WORD	touch screen status
		0000h unavailable
		0001h uncalibrated
		FFFFh available
 02h	WORD	aux mouse status (0000h not present, FFFFh present)
Notes:	the following driver parameters will have been reset to zero:
	  touchdown counter, liftoff counter, position at last touch, position
	  at last lift, int call mask, select on count, select off count,
	  pos select on count, pos select off count.
	the following driver parameters will have been reset as listed:
	  mouse emulation mode: left on
	  thresholds: 46 on screen, 96 push harder, 80 push release
	  x, y hysteresis: 400
	  data repeat rate: 40/sec
	  select mechanism: push-harder - first-touch
	  coordinate origin: upper left corner
	  filter frequency: medium
	  data block mask: all enabled
	  click lock: on