Abstract: A client device interface system comprises a host processor and a switch. The host processor has a host bus interface and a plurality of general purpose input output (GPIO) ports, where each GPIO port is uniquely associated with a client device bus of a plurality of client devices buses. The host processor is configured to generate a control signal in accordance with an interrupt request signal received on an identified GPIO port of the plurality of GPIO ports to direct a switch to connect the host bus interface to an identified client device bus corresponding to the identified GPIO port.