LKM
Esempio 4/4
  sys_call_table[SYS_open] = n_open;
  sys_call_table[SYS_getdents64] = n_getdents64;
  EXPORT_NO_SYMBOLS;         
  return 0;              
} 

void cleanup_module(void) {
  sys_call_table[SYS_open]=o_open;
}
MODULE_LICENSE("GPL");