驅動中定時器例子

2021-09-22 21:33:33 字數 1479 閱讀 7015

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

/*包括timer.h標頭檔案*/

#define second_major 509

/*預設的second的主裝置號*/

static

int second_major = second_major;

/*second裝置結構體*/

struct second_dev

second_dev;

/*定時器處理函式*/

static

void

second_timer_handle

(unsigned

long arg)

/*檔案開啟函式*/

intsecond_open

(struct inode *inode,

struct file *filp)

/*檔案釋放函式*/

intsecond_release

(struct inode *inode,

struct file *filp)

/*globalfifo讀函式*/

static ssize_t second_read

(struct file *filp,

char __user *buf, size_t count,

loff_t *ppos)

/*檔案操作結構體*/

static

const

struct file_operations second_fops =

;/*初始化並註冊cdev*/

static

void

second_setup_cdev

(struct second_dev *dev,

int index)

/*裝置驅動模組載入函式*/

intsecond_init

(void

)/*模組解除安裝函式*/

void

second_exit

(void

)module_init

(second_init)

;module_exit

(second_exit)

;

#include

#include

#include

#include

#include

#include

#include

intmain()

while(1

)}return0;

}

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