A mode switching tool for controlling multiple-device USB gearhttp://www.draisberghof.de/usb_modeswitch/
USB_ModeSwitch is a mode switching tool for controlling "flip flop"
(multiple device) USB gear. It allows so-called "Zero-CD" devices that
show up as USB storage initially to be switched into their more useful
"application mode". This is most common for UMTS/3G wireless WAN
Josua Dietze and others