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Linux驱动-inode,file,file_operations关系
驱动如何区分出次设备号。 read/write接口函数要能够获得字符设备结构体变量地址。 什么是文件描述符? Linux 中一切都可以看作文件,包括普通文件、链接文件、Socket 以及设备驱动等,对其进行相关操作时,都可能会创建对应的文件描述符。文件描述符(file ...
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