Fingerprint sensor with proximity detection, and corresponding devices, systems, and methods

A method in an electronic device includes determining, with at least one proximity sensor component proximately located with a fingerprint sensor, that an object is proximately located with the fingerprint sensor. In response to this, the method includes transitioning the fingerprint sensor from a low-power or sleep mode to an active mode of operation. The method then detects, with the fingerprint sensor, the object touching the fingerprint sensor. The method also detects, with the fingerprint sensor, an action of the object along the fingerprint sensor. The method then performs a control operation as a function of the action.