嵌入式Linux添加U转网口并配置通信

参考：

https://blog.csdn.net/zengshitang520/article/details/50685758?utm_medium=distribute.pc_relevant.none-task-blog-searchFromBaidu-1.control&depth_1-utm_source=distribute.pc_relevant.none-task-blog-searchFromBaidu-1.control

具体内核驱动配置有待后续更新中。。。。。。。