First wrapper attempt

I'm trying to write my first wrapper but i'm not sure how to wrap the next part. It's an lcd shield with 4 buttons.

Code:

  /**
* 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();...  

First wrapper attempt

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