#ifdef __KERNEL__

  #include <linux/mutex.h>

  typedef struct kobject *kobj_probe_t(dev_t, int *, void *);
  struct kobj_map;
  
  int kobj_map(struct kobj_map *, dev_t, unsigned long, struct module *,
  	     kobj_probe_t *, int (*)(dev_t, void *), void *);
  void kobj_unmap(struct kobj_map *, dev_t, unsigned long);
  struct kobject *kobj_lookup(struct kobj_map *, dev_t, int *);

  struct kobj_map *kobj_map_init(kobj_probe_t *, struct mutex *);

  
  #endif