#include <linux/init.h>
#include <linux/sched.h>
#include <linux/device.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/ioctl.h>
#include <linux/parport.h>
#include <linux/ctype.h>
static struct class *ppdev_class;
-static struct file_operations pp_fops = {
+static const struct file_operations pp_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.read = pp_read,