C/C++ Question First wrapper attempt

/**
* Read the state of the 4 buttons.
* @return      Bitmask with the 4 values: LSB - BUT1, MSB - BUT4
*/
uint8_t LCD16x2::readButtons(){
    uint8_t buttons;
   
    Wire.beginTransmission(ADDRESS);
    Wire.write(GET_BUT);
    Wire.endTransmission();
    Wire.requestFrom((int)ADDRESS, 1);
    while(Wire.available() > 0)
        buttons = Wire.read();
       
    return buttons;
}