A method for controlling an electronic device having a first touch sensor array and a fingerprint sensor includes receiving a first touch at the fingerprint sensor, in a fingerprint sensing mode: receiving first touch data associated with the first touch to a fingerprint controller, and authenticating a user based on the first touch data, and in a touch sensing mode: transmitting the first touch data associated with the first touch to a second controller, wherein the fingerprint sensor and the first touch sensor array form a combined touchpad in the touch sensing mode, and determining a touch location on the combined touchpad based on the first touch data.