MMA7455 code problems

Other Hardware Sensors
5

Ok here are the right codes. I dont know where that other code came from. Sorry for the mix up.

#include "MMA_7455.h"
#include <Wire.h>

#define MMA_7455_ADDRESS 0x1D //I2C Adsress for the sensor
#define MMA_7455_MODE_CONTROLL 0x16 //Call the sensors Mode Control

#define MMA_7455_2G_MODE 0x05 //Set Sensitivity to 2g
#define MMA_7455_4G_MODE 0x09 //Set Sensitivity to 4g
#define MMA_7455_8G_MODE 0x01 //Set Sensitivity to 8g

#define X_OUT 0x06 //Register for reading the X-Axis
#define Y_OUT 0x07 //Register for reading the Y-Axis
#define Z_OUT 0x08 //Register for reading the Z-Axis

MMA_7455::MMA_7455()
{ 
  Wire.begin();
}

void MMA_7455::initSensitivity(int sensitivity)
{
  delay(1000);
  Wire.beginTransmission(MMA_7455_ADDRESS);
  Wire.write(MMA_7455_MODE_CONTROLL);
  if(sensitivity == 2)
  {
    Wire.write(MMA_7455_2G_MODE);  //Set Sensitivity to 2g Detection
  }
  if(sensitivity == 4)
  {
    Wire.write(MMA_7455_2G_MODE);  //Set Sensitivity to 4g Detection
  }
  if(sensitivity == 8)
  {
    Wire.write(MMA_7455_2G_MODE);  //Set Sensitivity to 8g Detection
  }
  Wire.endTransmission();
  delay(1000);
}

void MMA_7455::calibrateOffset(float x_axis_offset, float y_axis_offset, float z_axis_offset)
{
  _x_axis_offset = x_axis_offset;
  _y_axis_offset = y_axis_offset;
  _z_axis_offset = z_axis_offset;
}
unsigned char MMA_7455::readAxis(char axis)
{
  Wire.beginTransmission(MMA_7455_ADDRESS);
  if(axis == 'x' || axis == 'X')
  {
    Wire.write(X_OUT);
  }
  if(axis == 'y' || axis == 'Y')
  {
    Wire.write(Y_OUT);
  }
  if(axis == 'z' || axis == 'Z')
  {
    Wire.write(Z_OUT);
  }
  Wire.endTransmission();
  Wire.beginTransmission(MMA_7455_ADDRESS);
  Wire.requestFrom(MMA_7455_ADDRESS, 1);
  if(Wire.available())
  {
    _buffer = Wire.read();
  }
  if(axis == 'x' || axis == 'X')
  {
    _buffer = _buffer + _x_axis_offset;
  }
  if(axis == 'y' || axis == 'Y')
  {
    _buffer = _buffer + _y_axis_offset;
  }
  if(axis == 'z' || axis == 'Z')
  {
    _buffer = _buffer + _z_axis_offset;
  }

  return _buffer;
}

#ifndef MMA_7455_h
#define MMA_7455_h


#include "Arduino.h"  //#include "WProgram.h"
#include "Wire.h"

class MMA_7455
{
  public:
    MMA_7455();
    void initSensitivity(int sensitivity);
    void calibrateOffset(float x_axis_offset, float y_axis_offset, float z_axis_offset);
    unsigned char readAxis(char axis);
  private:
    unsigned char _buffer;
    float _x_axis_offset;
    float _y_axis_offset;
    float _z_axis_offset;
};

#endif