#include??
#include
#include?
#include?
#include?
#include?
#include
#include?
#include?
#include?
#include?

MODULE_AUTHOR（“Me“）;
MODULE_LICENSE（“GPL“）;

#define?MYCDEV_MAJOR?231?/*給定的主設備號*/
#define?MYCDEV_SIZE?1000

static?int?mycdev_open（struct?inode?*inode?struct?file?*fp）
{
????return?0;
}

static?int?mycdev_release（struct?inode?*inode?struct?file?*fp）
{
????return?0;
}

static?ssize_t?mycdev_read（struct?file?*fp?char?__user?*buf?size_t?size?loff_t?*pos）
{
????unsigned?long?p?=?*pos;
????unsigned?int?count?=?size;
????//char?kernel_buf[MYCDEV_SIZE]=“This?is?mycdev!“;
????char?kernel_buf[MYCDEV_SIZE];
????

????memset（kernel_buf0MYCDEV_SIZE）;
????memcpy（kernel_buf?“This?is?mycdev!“?MYCDEV_SIZE）;

????if（p?>=?MYCDEV_SIZE）
????????return?-1;
????if（count?>?MYCDEV_SIZE）
????????count?=?MYCDEV_SIZE?-?p;

????if?（copy_to_user（buf?kernel_buf?count）?!=?0）?{
????????printk（“read?error!\n“）;
????????return?-1;
????}

????/*
????for?（i?=?0;?i?????????__put_user（i?buf）;//write?‘i‘?from?kernel?space?to?user?space‘s?buf;
????????buf++;
????}
????*/

????printk（“reader:?%d?bytes?was?read...\n“?count）;
????return?count;
}

static?ssize_t?mycdev_write（struct?file?*fp?const?char?__user?*buf?size_t?size?loff_t?*pos）
{
????return?size;
}

/*?填充?mycdev的?file?operation?結構*/
static?const?struct?file_operations?mycdev_fops?=
{
????.owner?=?THIS_MODULE
????.read?=?mycdev_read
????.write?=?mycdev_write
????.open?=?mycdev_open
????.release?=?mycdev_release
};

/*模塊初始化函數*/
static?int?__init?mycdev_init（void）
{
????int?ret;
????printk（“mycdev?module?is?staring..\n“）;
????ret=register_chrdev（MYCDEV_MAJOR“my_cdev“&mycdev_fops）;?/*注冊驅動程序*/
????if（ret<0）{
????????printk（“register?failed..\n“）;
????????return?0;
????}else{
????????printk（“register?success..\n“）;
????}
????return?0;
}

/*模塊卸載函數*/
static?void?__exit?mycdev_exit（void）
{
????printk（“mycdev?module?is?leaving..\n“）;
????unregister_chrdev（MYCDEV_MAJOR“my_cdev“）;?/*注銷驅動程序*/
}

module_init（mycdev_init）;
module_exit（mycdev_exit）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-03-07?16:12??1400002100?楊永博?實驗五??設備驅動\
?????目錄???????????0??2018-03-07?16:12??1400002100?楊永博?實驗五??設備驅動\設備驅動\
?????文件??????102400??2018-03-07?16:12??1400002100?楊永博?實驗五??設備驅動\設備驅動\實驗五??設備驅動.doc
?????目錄???????????0??2018-03-07?15:48??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\
?????文件??????????91??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\.mycdev.ko.cmd
?????文件?????????222??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\.mycdev.ko.unsigned.cmd
?????文件???????23661??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\.mycdev.mod.o.cmd
?????文件???????28337??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\.mycdev.o.cmd
?????目錄???????????0??2018-03-07?15:48??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\.tmp_versions\
?????文件??????????47??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\.tmp_versions\mycdev.mod
?????文件?????????222??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\Makefile
?????文件???????????0??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\Module.symvers
?????文件??????????31??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\modules.order
?????文件????????2359??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\mycdev.c
?????文件??????175369??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\mycdev.ko
?????文件??????175369??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\mycdev.ko.unsigned
?????文件?????????937??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\mycdev.mod.c
?????文件???????73068??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\mycdev.mod.o
?????文件??????103488??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\mycdev.o
?????文件????????5195??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\test
?????文件?????????493??2017-04-27?14:45??1400002100?楊永博?實驗五??設備驅動\設備驅動\源代碼\test.c
?????文件?????????155??2017-04-27?14:41??1400002100?楊永博?實驗五??設備驅動\運行步驟.txt