定义全局变量property与getprop

author	daisy.skye的博客_CSDN博客-Qt,嵌入式,Linux领域博主
adb调试	adb shell getprop .adb logcat 报错 init: sys_prop: permission denied uid:1006  name:ro.camera.gc02m1
在linux驱动中查找	find ./ -name *.c | xargs grep -n "property_set" find ./ -name string|xargs grep -n "sehandle_prop"
修改配置
参考链接	Android 中的property_get/property_sethttps://www.cnblogs.com/schips/p/android-selinux_about_avc.html Android/SELinux 添加 AVC 权限https://www.cnblogs.com/schips/p/android_api-property_get-and-property_set.html