File content as of revision 0:40a6dc4f47d1:

#ifndef LIS3DH
#define LIS3DH

#include "mbed.h"

// addr
#define WRITE_ADDR 0x30
#define READ_ADDR 0x31
//   LIS3DH ID
#define I_AM_LIS3DH         0x33
 
//  Register's definition
#define LIS3DH_STATUS_REG_AUX  0x07
#define LIS3DH_OUT_ADC1_L      0x08
#define LIS3DH_OUT_ADC1_H      0x09
#define LIS3DH_OUT_ADC2_L      0x0a
#define LIS3DH_OUT_ADC2_H      0x0b
#define LIS3DH_OUT_ADC3_L      0x0c
#define LIS3DH_OUT_ADC3_H      0x0d
#define LIS3DH_INT_COUNTER_REG 0x0e
#define LIS3DH_WHO_AM_I        0x0f
#define LIS3DH_TEMP_CFG_REG    0x1f
#define LIS3DH_CTRL_REG1       0x20
#define LIS3DH_CTRL_REG2       0x21
#define LIS3DH_CTRL_REG3       0x22
#define LIS3DH_CTRL_REG4       0x23
#define LIS3DH_CTRL_REG5       0x24
#define LIS3DH_CTRL_REG6       0x25
#define LIS3DH_REFERENCE       0x26
#define LIS3DH_STATUS_REG2     0x27
#define LIS3DH_OUT_X_L         0x28
#define LIS3DH_OUT_X_H         0x29
#define LIS3DH_OUT_Y_L         0x2a
#define LIS3DH_OUT_Y_H         0x2b
#define LIS3DH_OUT_Z_L         0x2c
#define LIS3DH_OUT_Z_H         0x2d
#define LIS3DH_FIFO_CTRL_REG   0x2e
#define LIS3DH_FIFO_SRC_REG    0x2f
#define LIS3DH_INT1_CFG        0x30
#define LIS3DH_INT1_SOURCE     0x31
#define LIS3DH_INT1_THS        0x32
#define LIS3DH_INT1_DURATION   0x33
#define LIS3DH_CLICK_CFG       0x38
#define LIS3DH_CLICK_SRC       0x39
#define LIS3DH_CLICK_THS       0x3a
#define LIS3DH_TIME_LIMIT      0x3b
#define LIS3DH_TIME_LATENCY    0x3c
#define LIS3DH_TIME_WINDOW     0x3d
 
// definition for Nomalization
#define LIS3DH_SENSITIVITY_2G  (0.001F)
#define LIS3DH_SENSITIVITY_4G  (0.002F)
#define LIS3DH_SENSITIVITY_8G  (0.004F)
#define LIS3DH_SENSITIVITY_16G (0.012F)
/** Create a LIS3DH instance connected to specified I2C pins with specified address
     *
     * @param sda I2C-bus SDA pin
     * @param scl I2C-bus SCL pin
*/
class LIS3DH
{
    public: 
        LIS3DH(PinName sda ,  PinName scl );
        int start(void);
        void read_data(float a[]);
private:
    I2C i2c;
    char dbf[2],addr;
};
#endif //LIS3DH
/*sample main.cpp code

#include "mbed.h"
#include "LIS3DH.h"

LIS3DH I2c(p9,p10); //sda,scl
Serial pc(USBTX,USBRX);
int main(){
    int check;
    check = I2c.start();
    if (check == 1) {
        while(1) {
            float dt[2];
            I2c.read_data(dt);
            pc.printf("X=%f __Y=%f __Z=%f \n",dt[0],dt[1],dt[2]);
            wait(1);
            }
        }
    }
*/