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diff --git a/packages/i2c/files/i2c-io-api.h b/packages/i2c/files/i2c-io-api.h
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+/****************************************************************************
+*
+*   Copyright (c) 2006 Dave Hylands     <dhylands@gmail.com>
+*
+*   This program is free software; you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License version 2 as
+*   published by the Free Software Foundation.
+*
+*   Alternatively, this software may be distributed under the terms of BSD
+*   license.
+*
+*   See README and COPYING for more details.
+*
+****************************************************************************/
+/**
+*
+*   @file   i2c-io-api.h
+*
+*   @brief  This file contains definitions for performing i2c-io operations 
+*           on the gumstix.
+*
+****************************************************************************/
+
+#if !defined( I2C_IO_API_H )
+#define I2C_IO_API_H
+
+// ---- Include Files -------------------------------------------------------
+
+#include <inttypes.h>
+#include "i2c-io.h"
+
+// ---- Constants and Types -------------------------------------------------
+
+// ---- Variable Externs ----------------------------------------------------
+
+// ---- Function Prototypes -------------------------------------------------
+
+int I2C_IO_CheckVersion( const I2C_IO_Info_t *info );
+
+int I2C_IO_GetInfo( int i2cDev, I2C_IO_Info_t *info );
+int I2C_IO_GetGPIO( int i2cDev, uint8_t portNum, uint8_t *pinVal );
+int I2C_IO_SetGPIO( int i2cDev, uint8_t portNum, uint8_t pinMask, uint8_t pinVal );
+int I2C_IO_GetGPIODir( int i2cDev, uint8_t portNum, uint8_t *pinVal );
+int I2C_IO_SetGPIODir( int i2cDev, uint8_t portNum, uint8_t pinMask, uint8_t pinVal );
+int I2C_IO_GetADC( int i2cDev, uint8_t mux, uint16_t *adcVal );
+int I2C_IO_ReadReg8( int i2cDev, uint8_t reg, uint8_t *regVal );
+int I2C_IO_ReadReg16( int i2cDev, uint8_t reg, uint16_t *regVal );
+int I2C_IO_WriteReg8( int i2cDev, uint8_t reg, uint8_t regVal );
+int I2C_IO_WriteReg16( int i2cDev, uint8_t reg, uint16_t regVal );
+
+#endif  // I2C_IO_API_H
+