File content as of revision 0:0af6c7cf0ed3:

#include "mbed.h"
#include "i2c_master.h"

I2C_Master::I2C_Master(PinName sda, PinName scl, uint32_t frequency) : 
    m_i2c_sensor(sda, scl)
{
    
    m_i2c_sensor.frequency(frequency);
}

void        I2C_Master::i2c_write(uint8_t i2c_address, uint8_t slave_address, const uint8_t data)
{
    char writeArray[2] = {slave_address, data};
    m_i2c_sensor.write(i2c_address, writeArray, 2, false);
}

void        I2C_Master::i2c_writeBits(uint8_t i2c_address, uint8_t slave_address, const uint8_t data, uint8_t mask)
{
    char current_value;
    char writeArray[2] = {slave_address, data};

    //Get current value of desired register and mask it with mask-value
    current_value = i2c_read(i2c_address, slave_address);
    current_value &= ~mask;

    //Combine Data with the new data (additionaly masking the data) and send it to the Sensor
    writeArray[1] = current_value | (data & mask);

    m_i2c_sensor.write(i2c_address, writeArray, 2, false);
}

void        I2C_Master::i2c_readSeries(uint8_t i2c_address, uint8_t slave_address, uint8_t *data, uint8_t length)
{
    char *data_array;
    data_array = reinterpret_cast<char*>(data);

    const char temp_address = slave_address;

    m_i2c_sensor.write(i2c_address, &temp_address, 1, true);
    m_i2c_sensor.read(i2c_address, data_array,length, false);
}

uint8_t     I2C_Master::i2c_read(uint8_t i2c_address, uint8_t slave_address)
{
    char data;
    const char temp_address = slave_address;
    m_i2c_sensor.write(i2c_address, &temp_address, 1, true);
    m_i2c_sensor.read(i2c_address, &data, 1, false);
    return data;
}

uint8_t     I2C_Master::i2c_readBits(uint8_t i2c_address, uint8_t slave_address, uint8_t mask)
{
    char data;
    const char temp_address = slave_address;
    m_i2c_sensor.write(i2c_address, &temp_address, 1, true);
    m_i2c_sensor.read(i2c_address, &data, 1, false);
    return data & mask;
}