Correction: Unfortunately, there was a bug in my test program, an '\r' was added to the AT command at each lap of the loop... So the driver reboots when 120 superfluous '\r' are included in the AT message. May still be a bug, but a less obvious one. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html