i2cps.h

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/**
 *
 * @file i2cps.h
 *
 *  Functions to interact with linux I2C.
 *
 * <pre>
 * MODIFICATION HISTORY:
 *
 * Ver   Who      Date     Changes
 * ----- -------- -------- -----------------------------------------------
 * 1.00a gn       01/24/15 First release
 * 1.00b yrq      08/31/16 Added license header
 * 
 * </pre>
 *
******************************************************************************/

#ifndef __I2CPS_H__
#define __I2CPS_H__

#include <linux/i2c-dev.h>

int setI2C(unsigned int index, long slave_addr);
int unsetI2C(int i2c_fd);
int writeI2C_asFile(int i2c_fd, unsigned char writebuffer[], 
                    unsigned char bytes);
int readI2C_asFile(int i2c_fd, unsigned char readbuffer[], 
                   unsigned char bytes);

#define writeI2C_byte(i2c_fd, u8RegAddr, u8Data) \
                      i2c_smbus_write_byte_data(i2c_fd, u8RegAddr, u8Data);

#define writeI2C_word(i2c_fd, u8RegAddr, u16Data) \
                      i2c_smbus_write_word_data(i2c_fd, u8RegAddr, u16Data);

#endif // __I2CPS_H__