How to INIT charater driver BY USING INIT FUNC_N

/MY PROGRAM ARE COMPILED IN FEDORA15 ..WITH 4.6 gcc compiler...../

SUPPOSE THIS IS AN APPLICATION  WHICH U HAVE TO OPEN USING YOUR OWN CURRENT MADE DRIVER

 #include<stdio.h>

  2 #include<stdlib.h>

  3 #include<string.h>

  4 #include<fcntl.h>

  5 #include<unistd.h>

  6 int main(int argc,char* argv[])

  7 {

  8     int fd;

  9     char *buff="hi i m ER.ANU,i work in EMBLOGIC in LINUX OS,i MAKE FUN IN DOING IT";

 10     fd=open(argv[1],O_WRONLY);

 11     if(fd<0)

 12     {

 13         printf("OPEN ERROR\n");

 14     }

 15     printf("fd=============%d\n",fd);

 16     return 0;

 17 }

***********************FIRST HEADER FILE*****************************

#include<linux/init.h>

  2 #include<linux/cdev.h>

  3 #include<linux/kernel.h>

  4 #include<linux/slab.h>

  5 #include<asm-generic/uaccess.h>

  6 #include<linux/module.h>

  7 #include<linux/moduleparam.h>

  8 #include<linux/fs.h>

  9 MODULE_LICENSE("GPL");

 10 #define FIFO first

 11 #define MAJORNO 0

 12 #define MINORNO 0

 13 #define NOD 1

 14 #define QUANTUMSIZE 8

 15 #define QSETSIZE 8

 16 #define DATASIZE 0

 17 #define DEVICESIZE 1000

 18 #define DEBUG

 19 #define DEVICENAME "mychardev"

 20  //int nod=NOD;

 21 //extern dev_t dev;

 22 //extern int majorno;

 23 //extern int minorno;

 24 struct Scullqset

 25 {

 26     struct Scullqset *next;

 27     void **data;

 28 }; struct Sculldev

 30 {

 31     struct cdev c_dev;

 32     struct Scullqset *scull_qset;

 33     int qsetsize;

 34     int quantumsize;

 35     int devicesize;

 36     int datasize;

 37 };

~        When driver will start ..it will go into init function which is this:----

~   #include"header.h"

//header files r required ,no file_operation.h or prototypes file is added bcz i    //t is already added into devopen.c ...if u add file_operation.h here then error will be multiple     defination of fops .....bcz...it will include files in current directory again & again but files o    f library r not included again & again bcz of ifnef func used.....

  2 #include "dec.c"

  3 int nod;

  4 int majorno,minorno;

  5 dev_t dev;

  6 //struct file_operations fops;

  7 struct Sculldev *sculldev;

  8 //nod=NOD;

  9 module_param(nod,int,S_IRUGO);

 10 static int init_fun(void)

 11 {

 12    int ret,lv,newdev;

 13 majorno=MAJORNO;

 14 minorno=MINORNO;

 15 ret=alloc_chrdev_region(&dev,minorno,nod,DEVICENAME);

 16 if(ret<0)

 17 {

 18     printk("registration failed\n");

 19 }

 20 printk(KERN_ALERT"ret=%d\n",ret);

 21 minorno=MINOR(dev);

 22 majorno=MAJOR(dev);

 23 printk(KERN_INFO"majorno=%d\n",majorno);

 24 printk(KERN_INFO"minorno=%d\n",minorno);