#ifndef _NET_PSNAP_H
  #define _NET_PSNAP_H
  
  struct datalink_proto *
  register_snap_client(const unsigned char *desc,
  		     int (*rcvfunc)(struct sk_buff *, struct net_device *,
  				    struct packet_type *,
  				    struct net_device *orig_dev));
  void unregister_snap_client(struct datalink_proto *proto);
  
  #endif