Hi,

I am using Huawei modem with AT&T sim card and getting below error prints with ofono.

ofonod[20698]: plugins/udevng.c:check_usb_device() option [12d1:1003]
ofonod[20698]: plugins/udevng.c:add_device() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
ofonod[20698]: plugins/udevng.c:add_device() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.0/ttyUSB1/tty/ttyUSB1
ofonod[20698]: plugins/udevng.c:add_device() /dev/ttyUSB1 (huawei) 255/255/255 [00] ==> (null) (null)
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty add
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty finished
ofonod[20698]: plugins/udevng.c:check_usb_device() option [12d1:1003]
ofonod[20698]: plugins/udevng.c:add_device() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
ofonod[20698]: plugins/udevng.c:add_device() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.1/ttyUSB0/tty/ttyUSB0
ofonod[20698]: plugins/udevng.c:add_device() /dev/ttyUSB0 (huawei) 255/255/255 [01] ==> (null) (null)
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty add
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty finished
ofonod[20698]: plugins/udevng.c:check_modem_list() 
ofonod[20698]: plugins/udevng.c:create_modem() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
ofonod[20698]: plugins/udevng.c:create_modem() driver=huawei
ofonod[20698]: src/modem.c:ofono_modem_create() name: (null), type: huawei
ofonod[20698]: plugins/udevng.c:setup_huawei() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
ofonod[20698]: plugins/udevng.c:setup_huawei() /dev/ttyUSB1 255/255/255 00 (null)
ofonod[20698]: plugins/udevng.c:setup_huawei() /dev/ttyUSB0 255/255/255 01 (null)
ofonod[20698]: plugins/udevng.c:setup_huawei() mdm=/dev/ttyUSB1 pcui=/dev/ttyUSB0 diag=(null) qmi=(null) net=(null)
ofonod[20698]: src/modem.c:set_modem_property() modem 0x824fb70 property Device
ofonod[20698]: src/modem.c:set_modem_property() modem 0x824fb70 property Modem
ofonod[20698]: src/modem.c:set_modem_property() modem 0x824fb70 property Pcui
ofonod[20698]: src/modem.c:set_modem_property() modem 0x824fb70 property Diag
ofonod[20698]: src/modem.c:set_modem_property() modem 0x824fb70 property NetworkInterface
ofonod[20698]: src/modem.c:ofono_modem_register() 0x824fb70
ofonod[20698]: plugins/huawei.c:huawei_probe() 0x824fb70
ofonod[20698]: src/modem.c:emit_modem_added() 0x824fb70
ofonod[20698]: src/modem.c:call_modemwatches() 0x824fb70 added:1
ofonod[20698]: plugins/hfp_ag_bluez5.c:modem_watch() modem: 0x824fb70, added: 1
ofonod[20698]: plugins/dun_gw_bluez5.c:modem_watch() modem: 0x824fb70, added: 1
ofonod[20698]: plugins/smart-messaging.c:modem_watch() modem: 0x824fb70, added: 1
ofonod[20698]: plugins/push-notification.c:modem_watch() modem: 0x824fb70, added: 1
connmand[20153]: plugins/ofono.c:modem_added() 
connmand[20153]: plugins/ofono.c:add_modem() /huawei_20
connmand[20153]: plugins/ofono.c:add_modem() /huawei_20 Online 0
connmand[20153]: plugins/ofono.c:add_modem() /huawei_20 Powered 0
connmand[20153]: plugins/ofono.c:add_modem() /huawei_20 Interfaces 0x00
connmand[20153]: plugins/ofono.c:add_modem() /huawei_20 Type hardware
connmand[20153]: plugins/ofono.c:modem_set_powered() /huawei_20 powered 1
connmand[20153]: plugins/ofono.c:set_property() /huawei_20 path /huawei_20 org.ofono.Modem.Powered
ofonod[20698]: plugins/huawei.c:huawei_enable() 0x824fb70
ofonod[20698]: src/modem.c:get_modem_property() modem 0x824fb70 property Modem
ofonod[20698]: plugins/huawei.c:open_device() Modem /dev/ttyUSB1
ofonod[20698]: src/modem.c:get_modem_property() modem 0x824fb70 property Pcui
ofonod[20698]: plugins/huawei.c:open_device() Pcui /dev/ttyUSB0
ofonod[20698]: plugins/udevng.c:remove_device() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.0/ttyUSB1/tty/ttyUSB1
ofonod[20698]: plugins/udevng.c:destroy_modem() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
ofonod[20698]: src/modem.c:ofono_modem_remove() 0x824fb70
ofonod[20698]: src/modem.c:modem_unregister() 0x824fb70
ofonod[20698]: plugins/huawei.c:huawei_remove() 0x824fb70
ofonod[20698]: src/modem.c:unregister_property() property 0x8240be0
ofonod[20698]: src/modem.c:unregister_property() property 0x82468c8
ofonod[20698]: src/modem.c:unregister_property() property 0x824c1a0
ofonod[20698]: src/modem.c:unregister_property() property 0x823f8a8
ofonod[20698]: src/modem.c:unregister_property() property 0x8247038
ofonod[20698]: src/modem.c:emit_modem_removed() 0x824fb70
ofonod[20698]: src/modem.c:call_modemwatches() 0x824fb70 added:0
ofonod[20698]: plugins/hfp_ag_bluez5.c:modem_watch() modem: 0x824fb70, added: 0
ofonod[20698]: plugins/dun_gw_bluez5.c:modem_watch() modem: 0x824fb70, added: 0
ofonod[20698]: plugins/smart-messaging.c:modem_watch() modem: 0x824fb70, added: 0
ofonod[20698]: plugins/push-notification.c:modem_watch() modem: 0x824fb70, added: 0
ofonod[20698]: plugins/udevng.c:destroy_modem() /dev/ttyUSB1
ofonod[20698]: plugins/udevng.c:destroy_modem() /dev/ttyUSB0
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty remove
ofonod[20698]: plugins/udev.c:remove_modem() /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.0/ttyUSB1/tty/ttyUSB1
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty finished
ofonod[20698]: plugins/udevng.c:remove_device() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.1/ttyUSB0/tty/ttyUSB0
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty remove
ofonod[20698]: plugins/udev.c:remove_modem() /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.1/ttyUSB0/tty/ttyUSB0
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty finished
connmand[20153]: plugins/ofono.c:modem_removed() 
connmand[20153]: plugins/ofono.c:remove_modem() /huawei_20
iofonod[20698]: plugins/udevng.c:check_usb_device() option [12d1:1003]
ofonod[20698]: plugins/udevng.c:add_device() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
ofonod[20698]: plugins/udevng.c:add_device() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.1/ttyUSB0/tty/ttyUSB0
ofonod[20698]: plugins/udevng.c:add_device() /dev/ttyUSB0 (huawei) 255/255/255 [01] ==> (null) (null)
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty add
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty finished
ofonod[20698]: plugins/udevng.c:check_usb_device() option [12d1:1003]
ofonod[20698]: plugins/udevng.c:add_device() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
ofonod[20698]: plugins/udevng.c:add_device() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.0/ttyUSB1/tty/ttyUSB1
ofonod[20698]: plugins/udevng.c:add_device() /dev/ttyUSB1 (huawei) 255/255/255 [00] ==> (null) (null)
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty add
ofonod[20698]: plugins/udev.c:udev_event() subsystem tty finished
m ofonod[20698]: plugins/udevng.c:check_modem_list() 
ofonod[20698]: plugins/udevng.c:create_modem() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
ofonod[20698]: plugins/udevng.c:create_modem() driver=huawei
ofonod[20698]: src/modem.c:ofono_modem_create() name: (null), type: huawei
ofonod[20698]: plugins/udevng.c:setup_huawei() /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
ofonod[20698]: plugins/udevng.c:setup_huawei() /dev/ttyUSB1 255/255/255 00 (null)
ofonod[20698]: plugins/udevng.c:setup_huawei() /dev/ttyUSB0 255/255/255 01 (null)
ofonod[20698]: plugins/udevng.c:setup_huawei() mdm=/dev/ttyUSB1 pcui=/dev/ttyUSB0 diag=(null) qmi=(null) net=(null)
ofonod[20698]: src/modem.c:set_modem_property() modem 0x824fb70 property Device
ofonod[20698]: src/modem.c:set_modem_property() modem 0x824fb70 property Modem
ofonod[20698]: src/modem.c:set_modem_property() modem 0x824fb70 property Pcui
ofonod[20698]: src/modem.c:set_modem_property() modem 0x824fb70 property Diag
ofonod[20698]: src/modem.c:set_modem_property() modem 0x824fb70 property NetworkInterface

I could see modem getting disconnected from kernel also (using dmesg prints)

[119208.247302] usb 2-1.4: reset high-speed USB device number 100 using ehci-pci
[119208.344617] usb-storage 2-1.4:1.1: USB Mass Storage device detected
[119208.344944] option 2-1.4:1.1: GSM modem (1-port) converter detected
[119208.345211] usb 2-1.4: GSM modem (1-port) converter now attached to ttyUSB0
[119208.345261] usb-storage 2-1.4:1.0: USB Mass Storage device detected
[119208.345407] option 2-1.4:1.0: GSM modem (1-port) converter detected
[119208.345678] usb 2-1.4: GSM modem (1-port) converter now attached to ttyUSB1

[119213.451520] option1 ttyUSB1: option_instat_callback: error -108
[119213.451858] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-2)
[119213.451871] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-2)
[119213.451879] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-2)
[119213.452119] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[119213.452137] option 2-1.4:1.0: device disconnected
[119213.452353] option1 ttyUSB0: usb_wwan_indat_callback: resubmit read urb failed. (-2)
[119213.452363] option1 ttyUSB0: usb_wwan_indat_callback: resubmit read urb failed. (-2)
[119213.452370] option1 ttyUSB0: usb_wwan_indat_callback: resubmit read urb failed. (-2)
 
Can anybody help me to fix this issue.

PS: I am running this on ubuntu 12.04. Is there any dependency with Ubuntu version???
My ofono version is 1.16.