#include <linux/module.h>
#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/kdev_t.h>
#include <linux/fs.h>

static dev_t first; // Global variable for the first device number

static int __init ofcd_init(void) /* Constructor */
{
  printk(KERN_INFO "Namaskar: ofcd registered");
  if (alloc_chrdev_region(&first, 0, 3, "Shweta") < 0)
    {
      return -1;
    }
  printk(KERN_INFO "<Major, Minor>: <%d, %d>\n", MAJOR(first), MINOR(first));
  return 0;
}

static void __exit ofcd_exit(void) /* Destructor */
{
  unregister_chrdev_region(first, 3);
  printk(KERN_INFO "Alvida: ofcd unregistered");
}

module_init(ofcd_init);
module_exit(ofcd_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Anil Kumar Pugalia <email_at_sarika-pugs_dot_com>");
MODULE_DESCRIPTION("Our First Character Driver");