How to get multi-touch working(Linux and Andriod)

1、在hid-ids.h中加入vid pid

2、在hid-multitouch..c->mt_devices[] 中加入
{

               .driver_data=MT_CLS_DEFAULT,
               HID_USB_DEVICE(VID,PID)

          }

3、在hid-core.c->hid_have_special_driver[]中加入HID_USB_DEVICE(VID,PID)

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4:添加内核配置选项：

5：

7：

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# 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.

#
# Emulator keyboard configuration file #1.
#


# Basic Parameters
touch.deviceType = touchScreen
touch.orientationAware = 1
touch.size.calibration=diameter
touch.size.scale=10
touch.size.bias=0
touch.size.isSummed=0
touch.size.pressure.calibration=amplitude
touch.pressure.scale=0.005
touch.orientation.calibration=none

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10: adb shell

mount

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11：还有一种把 IDC 文件放到/system/usr/idc/ 目录下的方法：

1）把你的 IDC 文件拷贝到android源码：frameworks/base/data/keyboards/ 目录下；

2）修改common.mk文件：

3）croot 到android源码根目录： make -j8 完成后，find 命令在out目录查找下……结果如下则OK；

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