Comment 3 for bug 533353

Problem solved! by installing usb-modeswitch package from repositories.

since the driver is included as a
 Linux kernel module, such as "usbserial". However, the device still
 shows up as "usb-storage" by default. usb-modeswitch solves that
 issue by sending the command which actually performs the switching
 of the device from "usb-storage" to "usbserial".