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diff --git a/lib/uhd/uhd_sink_c.h b/lib/uhd/uhd_sink_c.h
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+++ b/lib/uhd/uhd_sink_c.h
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+/* -*- c++ -*- */
+/*
+ * Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+#ifndef UHD_SINK_C_H
+#define UHD_SINK_C_H
+
+#include <gnuradio/gr_hier_block2.h>
+#include <gnuradio/gr_uhd_usrp_sink.h>
+
+#include "osmosdr_snk_iface.h"
+
+class uhd_sink_c;
+
+typedef boost::shared_ptr< uhd_sink_c > uhd_sink_c_sptr;
+
+uhd_sink_c_sptr make_uhd_sink_c(const std::string &args = "");
+
+class uhd_sink_c :
+    public gr_hier_block2,
+    public osmosdr_snk_iface
+{
+private:
+  friend uhd_sink_c_sptr make_uhd_sink_c(const std::string &args);
+
+  uhd_sink_c(const std::string &args);
+
+public:
+  ~uhd_sink_c();
+
+  static std::vector< std::string > get_devices();
+
+  std::string name();
+
+  size_t get_num_channels( void );
+
+  osmosdr::meta_range_t get_sample_rates( void );
+  double set_sample_rate( double rate );
+  double get_sample_rate( void );
+
+  osmosdr::freq_range_t get_freq_range( size_t chan = 0 );
+  double set_center_freq( double freq, size_t chan = 0 );
+  double get_center_freq( size_t chan = 0 );
+  double set_freq_corr( double ppm, size_t chan = 0 );
+  double get_freq_corr( size_t chan = 0 );
+
+  std::vector<std::string> get_gain_names( size_t chan = 0 );
+  osmosdr::gain_range_t get_gain_range( size_t chan = 0 );
+  osmosdr::gain_range_t get_gain_range( const std::string & name, size_t chan = 0 );
+  double set_gain( double gain, size_t chan = 0 );
+  double set_gain( double gain, const std::string & name, size_t chan = 0 );
+  double get_gain( size_t chan = 0 );
+  double get_gain( const std::string & name, size_t chan = 0 );
+
+  std::vector< std::string > get_antennas( size_t chan = 0 );
+  std::string set_antenna( const std::string & antenna, size_t chan = 0 );
+  std::string get_antenna( size_t chan = 0 );
+
+private:
+  double _lo_offset;
+  boost::shared_ptr<uhd_usrp_sink> _snk;
+};
+
+#endif // UHD_SINK_C_H