Sierra Wireless EM7345 4G LTE (MBIM) not working

Harald Jung jung at ecos.de
Mon Jun 16 21:48:47 PDT 2014


Hi,

Problem: Sierra Wireless EM7345 4G LTE (MBIM) not working

here are the infos that I've collected:
Kernel: 3.14.3
Module cdc-ncm
Networkmanager: 0.9.8.10
Modemmanager: 1.2.0

Jun  3 14:39:16 Ecos-Appliance kernel: cdc_ncm 3-10:1.0: MAC-Address: 
ff:ff:ff:ff:ff:ff
Jun  3 14:39:16 Ecos-Appliance kernel: cdc_ncm 3-10:1.0 usb0: register 
'cdc_ncm' at usb-0000:00:14.0-10, CDC NCM, ff:ff:ff:ff:ff:ff
Jun  3 14:39:16 Ecos-Appliance kernel: usbcore: registered new interface 
driver cdc_ncm
Jun  3 14:39:33 200466 NetworkManager[2073]: <info> (usb0): carrier is OFF
Jun  3 14:39:33 200466 NetworkManager[2073]: <info> (usb0): new Ethernet 
device (driver: 'cdc_ncm' ifindex: 7)
Jun  3 14:39:33 200466 NetworkManager[2073]: <info> (usb0): exported as 
/org/freedesktop/NetworkManager/Devices/0
Jun  3 14:39:33 200466 NetworkManager[2073]: <info> (usb0): device state 
change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jun  3 14:39:33 200466 NetworkManager[2073]: <info> (usb0): bringing up 
device.
Jun  3 14:39:33 200466 NetworkManager[2073]: <info> (usb0): deactivating 
device (reason 'managed') [2]


Jun  3 14:39:40 200466 ModemManager[2301]: <info> ModemManager (version 
1.2.0-r1) starting...
Jun  3 14:39:40 200466 NetworkManager[2073]: <info> ModemManager 
disappeared from bus
Jun  3 14:39:40 200466 NetworkManager[2073]: <info> ModemManager 
available in the bus
Jun  3 14:39:42 200466 ModemManager[2301]: <warn>  Couldn't find support 
for device at '/sys/devices/pci0000:00/0000:00:14.0/usb3/3-10': not 
supported by any plugin
Jun  3 14:39:42 200466 ModemManager[2301]: <warn>  Couldn't find support 
for device at '/sys/devices/pci0000:00/0000:00:19.0': not supported by 
any plugin
Jun  3 14:39:42 200466 ModemManager[2301]: <warn>  Couldn't find support 
for device at '/sys/devices/pci0000:00/0000:00:1c.1/0000:04:00.0': not 
supported by any plugin

0: tpacpi_wwan_sw: Wireless WAN
     Soft blocked: no
     Hard blocked: no
1: phy0: Wireless LAN
     Soft blocked: no
     Hard blocked: no
------
------
0: tpacpi_wwan_sw: Wireless WAN
     Soft blocked: no
     Hard blocked: no
1: phy0: Wireless LAN
     Soft blocked: no
     Hard blocked: no

Bus 003 Device 005: ID 1199:a001 Sierra Wireless, Inc.
Device Descriptor:
   bLength                18
   bDescriptorType         1
   bcdUSB               2.00
   bDeviceClass          239 Miscellaneous Device
   bDeviceSubClass         2 ?
   bDeviceProtocol         1 Interface Association
   bMaxPacketSize0        64
   idVendor           0x1199 Sierra Wireless, Inc.
   idProduct          0xa001
   bcdDevice           17.29
   iManufacturer           1 Sierra Wireless Inc.
   iProduct                2 Sierra Wireless EM7345 4G LTE
   iSerial                 3 013937000056596
   bNumConfigurations      1
   Configuration Descriptor:
     bLength                 9
     bDescriptorType         2
     wTotalLength          163
     bNumInterfaces          2
     bConfigurationValue     1
     iConfiguration          0
     bmAttributes         0xe0
       Self Powered
       Remote Wakeup
     MaxPower              100mA
     Interface Association:
       bLength                 8
       bDescriptorType        11
       bFirstInterface         0
       bInterfaceCount         2
       bFunctionClass          2 Communications
       bFunctionSubClass      13
       bFunctionProtocol       0
       iFunction               4 Sierra Wireless EM7345 4G LTE
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        0
       bAlternateSetting       0
       bNumEndpoints           1
       bInterfaceClass         2 Communications
       bInterfaceSubClass     13
       bInterfaceProtocol      0
       iInterface              5 Sierra Wireless EM7345 4G LTE (NCM)
       CDC Header:
         bcdCDC               1.20
       CDC Union:
         bMasterInterface        0
         bSlaveInterface         1
       CDC NCM:
         bcdNcmVersion        1.00
         bmNetworkCapabilities 0x00
       CDC Ethernet:
         iMacAddress                      6 FFFFFFFFFFFF
         bmEthernetStatistics    0x00000000
         wMaxSegmentSize               1514
         wNumberMCFilters            0x0000
         bNumberPowerFilters              0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x81  EP 1 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0040  1x 64 bytes
         bInterval               4
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        0
       bAlternateSetting       1
       bNumEndpoints           1
       bInterfaceClass         2 Communications
       bInterfaceSubClass     14
       bInterfaceProtocol      0
       iInterface              7 Sierra Wireless EM7345 4G LTE (MBIM)
       CDC Header:
         bcdCDC               1.20
       CDC Union:
         bMasterInterface        0
         bSlaveInterface         1
       CDC MBIM:
         bcdMBIMVersion       1.00
         wMaxControlMessage   512
         bNumberFilters       32
         bMaxFilterSize       192
         wMaxSegmentSize      2048
         bmNetworkCapabilities 0x04
       UNRECOGNIZED CDC:  08 24 1c 00 01 01 dc 05
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x81  EP 1 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0040  1x 64 bytes
         bInterval               4
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       0
       bNumEndpoints           0
       bInterfaceClass        10 CDC Data
       bInterfaceSubClass      0 Unused
       bInterfaceProtocol      1
       iInterface              8 Data (OFF)
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       1
       bNumEndpoints           2
       bInterfaceClass        10 CDC Data
       bInterfaceSubClass      0 Unused
       bInterfaceProtocol      1
       iInterface              9 Data (NCM)
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x02  EP 2 OUT
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       2
       bNumEndpoints           2
       bInterfaceClass        10 CDC Data
       bInterfaceSubClass      0 Unused
       bInterfaceProtocol      2
       iInterface             10 Data (MBIM)
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x02  EP 2 OUT
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
Device Qualifier (for other device speed):
   bLength                10
   bDescriptorType         6
   bcdUSB               2.00
   bDeviceClass          239 Miscellaneous Device
   bDeviceSubClass         2 ?
   bDeviceProtocol         1 Interface Association
   bMaxPacketSize0        64
   bNumConfigurations      1
Device Status:     0x0001
   Self Powered

T:  Bus=03 Lev=01 Prnt=01 Port=09 Cnt=02 Dev#=  5 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1199 ProdID=a001 Rev=17.29
S:  Manufacturer=Sierra Wireless Inc.
S:  Product=Sierra Wireless EM7345 4G LTE
S:  SerialNumber=013937000056596
C:  #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0d Prot=00 Driver=cdc_ncm
I:  If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=01 Driver=cdc_ncm


           '/org/freedesktop/NetworkManager/Devices/0' => {
'AvailableConnections' => [],
                                                            'Udi' => 
'/sys/devices/pci0000:00/0000:00:14.0/usb3/3-10/3-10:1.0/net/usb0',
'Autoconnect' => 1,
'Dhcp4Config' => '/',
                                                            'Carrier' => '',
'PermHwAddress' => 'FF:FF:FF:FF:FF:FF',
'FirmwareVersion' => 'CDC NCM',
'HwAddress' => 'FF:FF:FF:FF:FF:FF',
                                                            'State' => 20,
'DriverVersion' => '22-Aug-2005',
'StateReason' => [
20,
2
],
'Ip6Config' => '/',
                                                            'Speed' => 0,
'FirmwareMissing' => '',
'DeviceType' => 1,
'Ip4Config' => '/',
'ActiveConnection' => '/',
'Capabilities' => 3,
'Dhcp6Config' => '/',
'Interface' => 'usb0',
                                                            'Managed' => 1,
'IpInterface' => '',
                                                            'Driver' => 
'cdc_ncm',
'Ip4Address' => 0
                                                          },



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