#include <linux/fs.h>
  #include <linux/init.h>
  #include <linux/proc_fs.h>
  #include <linux/seq_file.h>
  
  extern const struct seq_operations cpuinfo_op;
  static int cpuinfo_open(struct inode *inode, struct file *file)
  {
  	return seq_open(file, &cpuinfo_op);
  }
  
  static const struct file_operations proc_cpuinfo_operations = {
  	.open		= cpuinfo_open,
  	.read		= seq_read,
  	.llseek		= seq_lseek,
  	.release	= seq_release,
  };
  
  static int __init proc_cpuinfo_init(void)
  {
  	proc_create("cpuinfo", 0, NULL, &proc_cpuinfo_operations);
  	return 0;
  }
  module_init(proc_cpuinfo_init);