添加VID/PID到標準hid裝置-OK

修改檔案：

     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)     ------------------------------------------------------------------------------------------------------------------------------------------------------4:添加核心配置選項：     5：       7：   ----------------------------------------------------------------------------------------------------------------------------------------------------------8:http://source.android.com/tech/input/input-device-configuration-files.html   根據這個網站添加上層IDC檔案：   9：

# Copyright (C) 2012 Beijing IRTOUCH SYSTEMS Co.,Ltd### Input Device Configuration File for the IRTOUCH touch screen.## Basic Parameterstouch.deviceType = touchscreentouch.orientationAware = 1# 0 外部裝置，1 內部裝置device.internal = 1# Touch Size#touch.touchSize.calibration = pressure#touch.toolSize.calibration = linear#touch.toolSize.linearScale = 10#touch.toolSize.linearBias = 160#touch.toolSize.isSummed = 1# Size#touch.size.calibration = diameter#touch.size.scale = 10#touch.size.bias = 0#touch.size.isSummed = 0#scale 規模，面，比例；#bias 偏壓，偏差#summed 總結# Pressure壓力-/amplitude振幅#touch.pressure.calibration = amplitude#touch.pressure.scale = 0.005# Orientation方向-/校準touch.orientetion.calibration = none

---------------------------------------------------------------------------------------------------------------------------------------------------     上面那個idc檔案不能用，用下面這個idc檔案，Android 觸控螢幕idc檔案一般都是通用的，我的用這個下面這個idc檔案就可以了，知識觸控螢幕沒有滑鼠箭頭，但是滑鼠點哪裡就是去哪裡： 

# 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 Parameterstouch.deviceType = touchScreentouch.orientationAware = 1touch.size.calibration=diametertouch.size.scale=10touch.size.bias=0touch.size.isSummed=0touch.size.pressure.calibration=amplitudetouch.pressure.scale=0.005touch.orientation.calibration=none

---------------------------------------------------------------------------------------------------------------------------------------------------10: adb shell      su    mount         mount -w -o remount  /dev/block/platform/omap/omap_hsmmc.0/by-name/system     /system              chmod 777 /system/usr/idc   =>修改idc檔案可寫入權限；         adb push /home/tonsincs/Vendor_0416_Product_5030_Version_0110.idc /system/usr/idc/     -----------------------------------------------------------------------------------------------------------------------------------------------------------11：還有一種把 IDC 檔案放到/system/usr/idc/ 目錄下的方法：     1）把你的 IDC 檔案拷貝到android源碼：frameworks/base/data/keyboards/ 目錄下；     2）修改common.mk檔案：           3）croot 到android源碼根目錄： make -j8 完成後，find 命令在out目錄尋找下……結果如下則OK；      -----------------------------------------------------------------------------------------------------------------------------------------------------------總結：       最近一直移植Android（4.1）下面的觸控螢幕驅動，也接觸到了幾種觸控螢幕，總的來說，要麼把觸控螢幕當標準的HID裝置來用，這個移植就簡單，把觸控螢幕的VID/PID加到hid-ids.h hid-core.c hid-multitouch.c 檔案裡面，而且還要上層/system/usr/idc/Vendor_xxx_Product_xxx.idc檔案配合，觸控螢幕才能使用，否則你的觸控螢幕用著跟筆記本的觸摸板似得！       個人理解，修改drivers/input/touchscreen/usttouchscreen.c檔案中添加你的觸控螢幕驅動可以，不過這個比較麻煩，你要知道怎麼寫驅動，一些函數怎麼實現，演算法怎麼實現；比較麻煩；       也接觸到了i2c匯流排的觸控螢幕驅動，這個又比較麻煩一點，要根據你的arch/arm/mach-xxxx/board-xxx.c檔案中註冊你的觸控螢幕驅動i2c匯流排資訊；再添加你的驅動源碼；       總得來說，寫驅動的話比較麻煩，你必須有電路原理圖、晶片資料手冊，而且要看的明明白白，怎麼去是實現那些演算法，而且要對linux 驅動很瞭解，你的驅動掛載哪裡，i2c匯流排、usb匯流排，又要很多協議；很多知識；usb2.0協議，英文287頁；很麻煩！慢慢學習了！以上為個人理解！也是個人工作筆記！以備自己忘記了查閱！也供剛入門的朋友們參考！-------------------------------------------------------------------------------------------------------------------------------------------------------------