Linux led驱动程序框架的相关内容

文章 2023-04-23 来自：开发者社区

Linux LED驱动程序框架分析

前言本篇文章我将为大家分析LED驱动程序的框架，驱动程序框架是来自于韦东山老师所讲。一、如何编写一个字符设备驱动程序1.确定主设备号，也可以让内核分配。每一个设备都有自己的主设备号和次设备号用于区分不同的设备，这里我们暂时不使用次设备号只使用到了主设备号。2.定义自己的file_operations结构体编写字符设备驱动程序时需要提供一个file_operations结构体，这个结构体里面包含了....

文章 2022-12-13 来自：开发者社区

嵌入式linux/鸿蒙开发板(IMX6ULL）开发（二十六）LED驱动程序框架

1. LED驱动程序框架注意：如果做实验安装驱动时提示version magic不匹配，请看本文档最后的“常见问题”。1.1 回顾字符设备驱动程序框架1.确定主设备号2.定义自己的file_operations结构体3.实现对应的drv_open/drv_read/drv_write等函数，填入file_operations结构体4.把file_operations结构体告诉内核：registe....

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更新时间 2024-04-03 10:30:56

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