Index: uspace/lib/c/include/inet/iplink.h
===================================================================
--- uspace/lib/c/include/inet/iplink.h	(revision 58e9dec38facb087ef357050fc85631d17323e92)
+++ uspace/lib/c/include/inet/iplink.h	(revision 5a5b087fbcfc49e4bb66e16d7aa9a368508195bd)
@@ -44,4 +44,5 @@
 	async_sess_t *sess;
 	struct iplink_ev_ops *ev_ops;
+	void *arg;
 } iplink_t;
 
@@ -81,5 +82,5 @@
 } iplink_ev_ops_t;
 
-extern int iplink_open(async_sess_t *, iplink_ev_ops_t *, iplink_t **);
+extern int iplink_open(async_sess_t *, iplink_ev_ops_t *, void *, iplink_t **);
 extern void iplink_close(iplink_t *);
 extern int iplink_send(iplink_t *, iplink_sdu_t *);
@@ -90,4 +91,5 @@
 extern int iplink_get_mac48(iplink_t *, addr48_t *);
 extern int iplink_set_mac48(iplink_t *, addr48_t);
+extern void *iplink_get_userptr(iplink_t *);
 
 #endif