5 files changed, 9 insertions, 6 deletions
diff --git a/gr-uhd/lib/uhd_simple_sink.cc b/gr-uhd/lib/uhd_simple_sink.cc
index f208bd294..499ae4d6e 100644
--- a/gr-uhd/lib/uhd_simple_sink.cc
+++ b/gr-uhd/lib/uhd_simple_sink.cc
@@ -66,8 +66,8 @@ double uhd_simple_sink::get_samp_rate(void){
     return _dev->get_tx_rate();
 }
 
-void uhd_simple_sink::set_center_freq(double freq){
-    _dev->set_tx_freq(freq);
+uhd::tune_result_t uhd_simple_sink::set_center_freq(double freq){
+    return _dev->set_tx_freq(freq);
 }
 
 /***********************************************************************
diff --git a/gr-uhd/lib/uhd_simple_sink.h b/gr-uhd/lib/uhd_simple_sink.h
index 28965d870..e57ba4abb 100644
--- a/gr-uhd/lib/uhd_simple_sink.h
+++ b/gr-uhd/lib/uhd_simple_sink.h
@@ -39,7 +39,7 @@ public:
     void set_samp_rate(double rate);
     double get_samp_rate(void);
 
-    void set_center_freq(double freq);
+    uhd::tune_result_t set_center_freq(double freq);
 
     int work(
         int noutput_items,
diff --git a/gr-uhd/lib/uhd_simple_source.cc b/gr-uhd/lib/uhd_simple_source.cc
index 87b727874..725cb2807 100644
--- a/gr-uhd/lib/uhd_simple_source.cc
+++ b/gr-uhd/lib/uhd_simple_source.cc
@@ -75,8 +75,8 @@ double uhd_simple_source::get_samp_rate(void){
     return _dev->get_rx_rate();
 }
 
-void uhd_simple_source::set_center_freq(double freq){
-    _dev->set_rx_freq(freq);
+uhd::tune_result_t uhd_simple_source::set_center_freq(double freq){
+    return _dev->set_rx_freq(freq);
 }
 
 /***********************************************************************
diff --git a/gr-uhd/lib/uhd_simple_source.h b/gr-uhd/lib/uhd_simple_source.h
index 98378d518..27fa2c382 100644
--- a/gr-uhd/lib/uhd_simple_source.h
+++ b/gr-uhd/lib/uhd_simple_source.h
@@ -39,7 +39,7 @@ public:
     void set_samp_rate(double rate);
     double get_samp_rate(void);
 
-    void set_center_freq(double freq);
+    uhd::tune_result_t set_center_freq(double freq);
 
     int work(
         int noutput_items,
diff --git a/gr-uhd/swig/uhd_swig.i b/gr-uhd/swig/uhd_swig.i
index 06a1c88ff..363d9c914 100644
--- a/gr-uhd/swig/uhd_swig.i
+++ b/gr-uhd/swig/uhd_swig.i
@@ -27,6 +27,9 @@
 #include <uhd_simple_sink.h>
 %}
 
+%include <uhd/types/ranges.hpp>
+%include <uhd/types/tune_result.hpp>
+
 GR_SWIG_BLOCK_MAGIC(uhd,simple_source)
 %include <uhd_simple_source.h>