diff --git a/gnuradio/gnuradio.h b/gnuradio/gnuradio.h
index d9c34d8bb..a7ce6ac76 100644
--- a/gnuradio/gnuradio.h
+++ b/gnuradio/gnuradio.h
@@ -1,8 +1,8 @@
 /*
  *  Hamlib GNUradio backend - main header
- *  Copyright (c) 2001,2002 by Stephane Fillod
+ *  Copyright (c) 2001-2003 by Stephane Fillod
  *
- *	$Id: gnuradio.h,v 1.1 2002-07-06 09:27:38 fillods Exp $
+ *	$Id: gnuradio.h,v 1.2 2003-02-09 22:47:03 fillods Exp $
  *
  *   This library is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU Library General Public License as
@@ -27,17 +27,37 @@
 
 __BEGIN_DECLS
 
+struct gnuradio_priv_caps {
+	rig_model_t tuner_model;
+	shortfreq_t input_rate;
+	shortfreq_t IF_center_freq;
+};
+
+
 int gr_init(RIG *rig);
 int gr_cleanup(RIG *rig);
 int gr_open(RIG *rig);
 int gr_close(RIG *rig);
 int gr_set_freq(RIG *rig, vfo_t vfo, freq_t freq);
 int gr_get_freq(RIG *rig, vfo_t vfo, freq_t *freq);
+int gr_set_vfo(RIG *rig, vfo_t vfo);
 int gr_get_vfo(RIG *rig, vfo_t *vfo);
 int gr_set_mode(RIG *rig, vfo_t vfo, rmode_t mode, pbwidth_t width);
 int gr_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width);
 
+int gnuradio_set_conf(RIG *rig, token_t token, const char *val);
+int gnuradio_get_conf(RIG *rig, token_t token, char *val);
+int gnuradio_set_level(RIG *rig, vfo_t vfo, setting_t level, value_t val);
+int gnuradio_get_level(RIG *rig, vfo_t vfo, setting_t level, value_t *val);
+
+int mc4020_open(RIG *rig);
+int graudio_open(RIG *rig);
+
+extern const struct confparams gnuradio_cfg_params[];
+
 extern const struct rig_caps gr_caps;
+extern const struct rig_caps mc4020_caps;
+extern const struct rig_caps graudio_caps;
 
 extern BACKEND_EXPORT(int) initrigs_gnuradio(void *be_handle);