fym2021的博客

原创 2021-06-07

#include<linux/init.h>#include<linux/module.h>#include<linux/i2c.h>#include<linux/gpio.h>#include<linux/of_gpio.h>#include<linux/interrupt.h>#include<linux/of_irq.h>#include<linux/input.h>#include<

原创 2021-05-13

原创 2021-04-28

原创 2021-04-28

" .vimrc - Vim configuration file."" Copyright © 2010 Jeffy Du. All Rights Reserved."" Maintainer: Jeffy Du jeffy.du@gmail.com" Created: 2010-01-01" LastChange: 2010-04-22" GENERAL SETTINGS: {{{1" To use VIM settings, out of VI compatible mode.

原创 2021-04-28

#include<linux/init.h>#include<linux/module.h>#include<linux/fs.h>#include<linux/kdev_t.h>#include<linux/cdev.h>#include<linux/device.h>#define DEVICE_CLASS_NAME “chrdev_class_name”#define DEVICE_NODE_NAME “chrdev

原创 申请设备号

#include<linux/init.h>#include<linux/module.h>#include<linux/fs.h>#include<linux/kdev_t.h>static int major_num,minor_num;module_param(major_num,int,S_IRUSR);module_param(minor_num,int,S_IRUSR);static int hello_init(void){//

原创 beep驱动

#include<linux/init.h>#include<linux/module.h>#include<linux/miscdevice.h>#include<linux/fs.h>#include<linux/uaccess.h>#include<linux/io.h>#define GPIO5_DR 0X020AC000unsigned int *vir_gpio5;int misc_open(struct i

原创 杂项驱动

#include<linux/init.h>#include<linux/module.h>#include<linux/miscdevice.h>#include<linux/fs.h>struct file_operations misc_fops={.owner=THIS_MODULE};struct miscdevice misc_dev={.minor=MISC_DYNAMIC_MINOR,.name=“hello_misc”,.