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本节书摘来异步社区《嵌入式Linux开发实用教程》一书中的第4章，第4.2节，作者：朱兆祺 ,李强 ,袁晋蓉，更多章节内容可以访问云栖社区“异步社区”公众号查看 4.2 字符设备驱动嵌入式Linux开发实用教程Linux操作系统将所有的设备都会看成是文件，因此当我们需要访问设备时，都是通过操作文...

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