## Physical Device Driver Reference

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### TOUCH_DEVINDEP_SETCOORDSYS (50h) - Remarks

X and Y values are treated as 16-bit 2's complement signed integers in the range -32768 to 32767.

Hysteresis values are unsigned integers in the range 0 - 65535.

Hysteresis values required should be expressed in terms of the hysteresis value (in X, Y coordinate system units) multiplied by 1000.