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Device Drivers, Part 5: Character Device Files — Creation & OperationsBy Anil Kumar Pugalia on April 1, 2011 in Coding, Developers · 25 Comments and 0 ReactionsThis article is

在Linux内核学习－字符设备驱动学习（一）中编写字符设备驱动的一种方法，但是需要手动创建设备节点。有没有能够自动的创建设备节点的呢？有！使用class_create()和device_create()函数可以自动创建节点。class_create : 创建class class_destroy : 销毁class class_device_create : 创建devic

内核中每个字符设备都对应一个 cdev结构的变量，下面是它的定义：linux-2.6.22/include/linux/cdev.hstruct cdev {struct kobject kobj;          // 每个 cdev都是一个 kobjectstruct module *owner;       //指向实现驱动的模块const struct file_op

字符设备驱动之cdev_init()系列函数1.内核中每个字符设备都对应一个 cdev 结构的变量，下面是它的定义：linux-2.6.22/include/linux/cdev.hstruct cdev {  13        struct kobject kobj;  14        struct module *owner;  15        const s

This article, which is part of theseries on Linux device drivers, talks about accessing hardware in Linux.Shweta was all jubilant about her character driver achievements, as she entered the Linu