Provided are user equipment connectable to an external device and a method for establishing a connection between user equipment including second constituent elements and an external device including first constituent elements and controlling the external device. The method may include sensing the connection to the external device, obtaining first constituent element information from the external device through the connection, wherein the first constituent element information includes information on first constituent elements of the external device, selecting target constituent elements to control from the first constituent elements of the external device based on the obtained first constituent element information, reconfiguring a control path for controlling the selected target constituent elements of the external device, and controlling the selected target constituent elements of the external device through the reconfigured control path.