Abstract: The present invention provides a method for controlling a remote electronic device and the system thereof. According to the method and system, the input signals from an electronic device are transmitted to the remote electronic device via a camera device connected to the remote electronic device.

Abstract: The present invention provides an operating method for USB hub supporting role-switch function. The processing unit of the USB hub will transmit a control signal to the first electronic device having both the host mode and the device mode and connecting to the down stream port for changing the operating mode. Thereby, the electronic device is able to access a peripheral device connected to another down stream port. Alternatively, the electronic device can be accessed by the second electronic device having the host mode and connected to the up stream port.

Abstract: An I2C/SPI control interface circuitry, an integrated circuit structure, and a bus structure thereof are provided. The I2C/SPI control interface circuitry includes an I2C control module and a SPI control module. The I2C control module has an I2C clock port and an I2C data port, and the SPI control module has a SPI clock port, a SPI data input port, a SPI data output port, and a SPI chip enable port. The I2C clock port is electrically connected with the SPI chip enable port to become an I2C clock/SPI chip enable input/output end. The I2C data port is electrically connected with the SPI data input port and the SPI data output port to become an I2C/SPI data input/output end. The SPI clock port is the SPI clock output end. The I2C and SPI control module are alternative to be enabled to avoid signal interference and lower the cost of the package and the manufacture of the integrated circuit.