A method for a first electronic device processing data based on information from a second electronic device may comprise: receiving a first signal from the second electronic device; extracting a first clock based on the first signal; adjusting an oscillator based on the first clock so as to generate a second clock; and selecting one from the first and second clocks. In an embodiment of the present invention, the first electronic device may be configured to be hot plugged into the second electronic device. The method may further comprise processing a data stream from the second electronic device based on said selecting said one from the first and second clocks. The method may further comprise transmitting a data stream to the second electronic device based on said selecting said one from the first and second clocks.