Hi Zhenhua, > Dell 5530 modem has no data device port. So data device should be > optional in mbm drvier.
can you please include the content of /proc/bus/usb/devices for this device and the sysfs descriptions for each TTY port. Regards Marcel _______________________________________________ ofono mailing list ofono@ofono.org http://lists.ofono.org/listinfo/ofono
