Index: kernel.h
===================================================================
--- kernel.h	(revision 4971)
+++ kernel.h	(working copy)
@@ -352,6 +352,7 @@
 	void (*echo_can_free)(struct echo_can_state *ec);
 	void (*echo_can_array_update)(struct echo_can_state *ec, short *iref, short *isig);
 	int (*echo_can_traintap)(struct echo_can_state *ec, int pos, short val);
+	void (*echo_can_array_hpf_tx)(struct echo_can_state *ec, short *txlin);
 };
 
 int dahdi_register_echocan(const struct dahdi_echocan *ec);