Lines Matching refs:finger

55 important.  Event filtering and finger tracking is left to user space [3].
170 looking through a window at someone gently holding a finger against the
172 of the finger actually touching the glass, and one outer region formed by
173 the perimeter of the finger. The center of the touching region (a) is
174 ABS_MT_POSITION_X/Y and the center of the approaching finger (b) is
175 ABS_MT_TOOL_X/Y. The touch diameter is ABS_MT_TOUCH_MAJOR and the finger
176 diameter is ABS_MT_WIDTH_MAJOR. Now imagine the person pressing the finger
204 In addition to the MAJOR parameters, the oval shape of the touch and finger
208 direction of the finger ellipse is given by the vector (a - b).
214 finger or a pen or something else. Finally, the ABS_MT_TRACKING_ID event
277 indicate more than a quarter of a revolution. For an upside-down finger,
314 between different tool types, such as a finger or a pen. In such cases, the
356 the device can distinguish between a finger along the Y axis (0) and a
357 finger along the X axis (1).
385 The process of finger tracking, i.e., to assign a unique trackingID to each
396 parameters can be used to, e.g., approximate finger pressure or distinguish
397 between index finger and thumb. With the addition of the MINOR parameters,
398 one can also distinguish between a sweeping finger and a pointing finger,
406 in a finger packet must not be recognized as single-touch events.
408 For type A devices, all finger data bypasses input filtering, since
418 [5] See the section on finger tracking.