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/* -*- 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 */
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