A method for controlling multimedia interfaces, comprising: detecting a state of connection with one or more sink devices and one or more source devices which are connected to input and output ports (I1∼I3, O1-O3) of a multimedia interface module; identifying one or more operation modes available for the detected connection state, the operation modes including at least one of a through process, a convert process, a switch process, a mix process, a duplicate process and an exchange process and displaying the identified available operation modes; transmitting device information of the one or more sink devices to the one or more source devices, the device information being selectively edited in accordance with an operation mode requested by a user among the displayed operation modes; and receiving A/V signal from the one or more source devices, selectively processing the signal according to the requested operation mode, and transmitting the signal to the one or more sink devices, wherein the through process corresponds to connecting the one or more source devices to the one or more sink devices, the convert process corresponds to changing a format of the AN signal output from the one or more source devices to another, the switch process corresponds to changing two or more source devices with one another, the mix process corresponds to putting together at least two of two or more source devices into one, the duplicate process corresponds to connecting one source device to two or more sink devices and the exchange process corresponds to swapping two or more connections between the one or more sink devices and the one or more source devices with one another, wherein the operation modes including the through process, the convert process, the switch process and the mix process are available when two or more source devices and one sink device are connected, the operation modes including the through process, the convert process and the duplicate process are available when one source device and two or more sink devices are connected, and the operation modes including the through process, the convert process, the switch process, the mix process, the duplicate process and the exchange process are available when two or more source devices and two or more sink devices are connected. detecting a state of connection with one or more sink devices and one or more source devices which are connected to input and output ports (I1∼I3, O1-O3) of a multimedia interface module; identifying one or more operation modes available for the detected connection state, the operation modes including at least one of a through process, a convert process, a switch process, a mix process, a duplicate process and an exchange process and displaying the identified available operation modes; transmitting device information of the one or more sink devices to the one or more source devices, the device information being selectively edited in accordance with an operation mode requested by a user among the displayed operation modes; and receiving A/V signal from the one or more source devices, selectively processing the signal according to the requested operation mode, and transmitting the signal to the one or more sink devices, wherein the through process corresponds to connecting the one or more source devices to the one or more sink devices, the convert process corresponds to changing a format of the AN signal output from the one or more source devices to another, the switch process corresponds to changing two or more source devices with one another, the mix process corresponds to putting together at least two of two or more source devices into one, the duplicate process corresponds to connecting one source device to two or more sink devices and the exchange process corresponds to swapping two or more connections between the one or more sink devices and the one or more source devices with one another, wherein the operation modes including the through process, the convert process, the switch process and the mix process are available when two or more source devices and one sink device are connected, the operation modes including the through process, the convert process and the duplicate process are available when one source device and two or more sink devices are connected, and the operation modes including the through process, the convert process, the switch process, the mix process, the duplicate process and the exchange process are available when two or more source devices and two or more sink devices are connected.