Electronic device, method of controlling electronic device and non-transitory computer-readable storage medium

An electronic device comprising:

• an interface including a first terminal configured to receive power from an external device and a second terminal configured to communicate with the external device;
• and
• at least one processor and/or at least one circuit to perform the operations of the following units:
• a communication unit that communicates with the external device via the second terminal;
• and
• a control unit that controls a connection between the second terminal and a ground,
• wherein the communication unit starts communication with the external device via the second terminal in accordance with a voltage level of the second terminal transitioning to a predetermined range in response to the electronic device being connected with the external device;
• and
• wherein in a case that a state of power received via the first terminal is a predetermined state, the control unit controls the voltage level of the second terminal to a voltage level outside the predetermined range.

A method of controlling an electronic device, wherein the electronic device comprises:

• an interface including a first terminal configured to receive power from an external device and a second terminal configured to communicate with the external device, and
• the method comprises:
• communicating with the external device via the second terminal;
• and
• controlling a connection between the second terminal and a ground, and
• wherein in the communicating, in a case that a state of power received via the first terminal is a predetermined state, a reset request for stopping the supply of power is sent to the external device;
• and
• in the controlling, the connection between the second terminal and the ground is controlled from a connected state to a disconnected state.

A method of controlling an electronic device, wherein the electronic device comprises:

• an interface including a first terminal configured to receive power from an external device and a second terminal configured to communicate with the external device;
• and
• the method comprises:
• communicating with the external device via the second terminal;
• and
• controlling a connection between the second terminal and a ground, and
• wherein in the communicating, communication with the external device via the second terminal is started in accordance with a voltage level of the second terminal transitioning to a predetermined range in response to the electronic device being connected with the external device;
• and
• in the controlling, the voltage level of the second terminal is controlled to a voltage level outside the predetermined range in a case that a state of power received via the first terminal is a predetermined state.

A non-transitory computer-readable storage medium storing a program which, when read and executed by a processor in an electric device including an interface having a first terminal for receiving power from an external device and a second terminal for communicating with the external device, causes the computer to execute the steps of a method comprising:

• communicating with the external device via the second terminal;
• and
• controlling a connection between the second terminal and a ground, and
• wherein in the communicating, in a case that a state of power received via the first terminal is a predetermined state, a reset request for stopping the supply of power is sent to the external device;
• and
• in the controlling, the connection between the second terminal and the ground is controlled from a connected state to a disconnected state.

A non-transitory computer-readable storage medium storing a program which, when read and executed by a processor in an electric device including an interface having a first terminal configured to receive power from an external device and a second terminal configured to communicate with the external device, causes the computer to execute the steps of a method comprising:

• communicating with the external device via the second terminal;
• and
• controlling a connection between the second terminal and a ground, and
• wherein in the communicating, communication with the external device via the second terminal is started in accordance with a voltage level of the second terminal transitioning to a predetermined range in response to an electronic device being connected with the external device;
• and
• in the controlling, the voltage level of the second terminal is controlled to a voltage level outside the predetermined range in a case that a state of power received via the first terminal is a predetermined state.