# Copyright (C) 2010 The Android Open Source Project # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # # Input Device Calibration File for the Crespo touch screen. # # These calibration values are derived from empirical measurements # and may not be appropriate for use with other touch screens. # Refer to the input device calibration documentation for more details. # # Basic Parameters touch.deviceType = touchScreen touch.orientationAware = 1 # Touch Size touch.touchSize.calibration = pressure # Tool Size # Driver reports tool size as an area measurement. # # Based on empirical measurements, we estimate the size of the tool # using size = sqrt(22 * rawToolArea + 0) * 9.2 + 0. touch.toolSize.calibration = area touch.toolSize.areaScale = 22 touch.toolSize.areaBias = 0 touch.toolSize.linearScale = 9.2 touch.toolSize.linearBias = 0 touch.toolSize.isSummed = 0 # Pressure # Driver reports signal strength as pressure. # # A normal thumb touch typically registers about 100 signal strength # units although we don't expect these values to be accurate. touch.pressure.calibration = amplitude touch.pressure.source = default touch.pressure.scale = 0.01 # Size touch.size.calibration = normalized # Orientation touch.orientation.calibration = none