本文主要说明某些简易 Linux 环境或者嵌入式 Linux 中实现串口上网的简单实现，这在工业控制中有着广泛的应用。希望对实现无网卡设备上网的方法有抛砖引玉的作用-This article illustrates some of the simple embedded Linux in the Linux environment or a simple implementation of Serial Internet, which has a wide range of industrial

许多工业控制场合需要嵌入式设备，需要提供CAN总线接口，来连接CAN设备，结合S3C2440，编写CAN总线驱动程序-Many industrial control applications that require embedded devices need to provide CAN bus interface to connect to CAN devices, combined with the S3C2440, write the CAN bus driver