说明：  本文以S3C44B0X 为微处理器, 通过其SPI 接口, 采用MCP2510 CAN 控制器扩展CAN 总, 文章在分析Linux 设备驱动程序工作原理和结构的基础上, 重点论述CAN 设备在Clinux 下驱动程序的设计方法, 编写驱动程序的操作例程, 测试驱动程序的正确性。结果表明CAN 设备在嵌入式操作系统uClinux 下驱动程序的正确性 CAN 设备驱动程序的成功实现, 对在嵌入式操作系统下扩展其它设备驱动程序有重要的指导意义。
(Basing on S3C44B0X microprocessor, through its SPI interface, the article extended CAN Bus through adopting MCP2510 CAN controller. Base on analyzing Linux device driver working prince- ple and structure, the article mostly discuss the design methodof CAN drivers under the uClinux, editing operation instance, testing the right of drivers. The result icate the right of CAN driversunder the uClinux It have the mportant guidance value thatrealizing successfully for CAN device drivers in order to extend otherdrivers of device in embeddedoperation system.)