Sd-mux stands for Secure Digital Multiplexer. This is SD card switcher (multiplexer) designed to help automatic testing.

The software is designed to work with Tizen's SD MUX [0], but it is also compatible with SDWire [1], which is now recommended over the former.

[0] [1]

This tool allows one to: - Connect SD card to DUT (Device Under Test) or to TS (Test Server) - Connect one USB port to DUT or TS - Power off or on DUT - Reset DUT through power disconnecting and reconnecting