kernel下添加

Linux-3.4/drivers/input/keyboard/Makefile

linux-3.4/drivers/input/keyboard/sw-keyboard.c

sw_scankeycodes[]={

[1] = KEY_GPS,

}

device/softwinner/wing-k70/configs/sw-keyboard.kl

key 249 GPS WAKE

frameworks/base/core/res/values/attrs.xml

frameworks/native/libs/input/input.cpp

isSystemKey( int32_t keyCode){

case AKEYCODE_GSP:

return true;

}

frameworks/native/include/android/keycodes.h

AKEYCODE_GPS = 249,

frameworks/base/core/Java/android/view/keyEvent.java

public static final int KEYCODE_GPS = 249;

private static final int LAST_KEYCODE = KEYCODE_GSP;

populateKeycodeSymbolicName()

names.append(KEYCODE_MEDIA_AUDIO_TRACK,"KEYCODE_GPS");

frameworks/base/policy/src/com/android/internal/policy/impl/phoneWindowManager.java

interceptKeyBeforeDispatching()

else if(keyCode == KeyEvent.KEYCODE_GPS){ //frameworks 中处理物理按键

}