1 files changed, 49 insertions, 0 deletions
diff --git a/gnuradio-core/src/lib/io/i2c.h b/gnuradio-core/src/lib/io/i2c.h
new file mode 100644
index 000000000..6b7f25a29
--- /dev/null
+++ b/gnuradio-core/src/lib/io/i2c.h
@@ -0,0 +1,49 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2001,2004 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * 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 INCLUDED_I2C_H
+#define INCLUDED_I2C_H
+
+#include <gr_core_api.h>
+#include <boost/shared_ptr.hpp>
+
+class i2c;
+typedef boost::shared_ptr<i2c> i2c_sptr;
+
+/*!
+ * \brief abstract class for controlling i2c bus
+ */
+class GR_CORE_API i2c {
+ public:
+
+  i2c () {}
+  virtual ~i2c ();
+
+  //! \returns true iff successful
+  virtual bool write (int addr, const unsigned char *buf, int nbytes) = 0;
+
+  //! \returns number of bytes read or -1 if error
+  virtual int read (int addr, unsigned char *buf, int max_bytes) = 0;
+};
+
+#endif /* INCLUDED_I2C_H */
+