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电子工程专辑
2 年
Linux用户空间与内核空间通信|虚拟文件系统(sysfs读写)
Linux用户空间与内核空间通信主要有以下几种方式:虚拟文件系统(proc、sysfs、debugfs等)、系统调用(read、write、open等)、信号(SIGSEGV、SIGPIPE)、Netlink、内存映像(mmap)、文件等。本文将重点介绍虚拟文件系统中的sysfs。 一、sysfs概述 sysfs是一种基于内存的虚拟文件系统 ...
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