MTK平台绝密核心代码之 系统驱动，是学习研究MTK平台的重要代码，也是做其他类似平台开发的良好参考代码，贡献出来与大家分享。-MTK platform for top-secret code of the core system, is the study important MTK platform code, but also other similar platforms to do a good reference code,