Unable to create /dev/qcqmi for EM7565

IoT Modules MC/EM Series
1

Hi,
I’m having issues installing EM7565 Gobi drivers on an Ubuntu x64 platform, specifically missing /dev/qcqmi#. Following the Application Developer’s Guide so I can use the lite API, I have:

  • Blacklisted qmi_wwan and qcserial
  • Removed modemmanager (network manager is still running)
  • Built and installed GobiSerial and GobiNet (with RAW_IP=1) using SierraLinuxQMIdriversS2.42N2.64

Looking at other working dmesg examples in these forums, it appears that GobiNet is not working correctly as I don’t see such lines as:
GobiNet 1-2:1.8 enp0s21f0u2i8: renamed from eth0
[ 17.983052] creating qcqmi0

There are also references to MBIM mode in demsg - could the modem be in the wrong mode, i.e. not QMI? How would I change that?

I’m also suspicious that I have the wrong driver as:

  1. The USB VID/PID is not listed as supported in QMI mode in the dev guide - “1199:9091 Sierra Wireless, Inc.”
  2. The dev guide mentions to contact your FAE(?) to obtain QMI drivers. Are these not public, i.e. not from the SW source?

Here are my logs:

$ uname -a
Linux GRiDCASE-1570 5.8.0-36-generic #40~20.04.1-Ubuntu SMP Wed Jan 6 10:15:55 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

$ lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 10000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
|__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 2: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 2: Dev 3, If 1, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 3: Dev 4, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 5: Dev 5, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 3: Dev 11, If 0, Class=Vendor Specific Class, Driver=GobiSerial, 480M
|__ Port 3: Dev 11, If 12, Class=Communications, Driver=cdc_mbim, 480M
|__ Port 3: Dev 11, If 3, Class=Vendor Specific Class, Driver=GobiSerial, 480M
|__ Port 3: Dev 11, If 13, Class=CDC Data, Driver=cdc_mbim, 480M
|__ Port 3: Dev 11, If 2, Class=Vendor Specific Class, Driver=GobiSerial, 480M
|__ Port 4: Dev 12, If 12, Class=Communications, Driver=cdc_mbim, 480M
|__ Port 4: Dev 12, If 2, Class=Vendor Specific Class, Driver=GobiSerial, 480M
|__ Port 4: Dev 12, If 0, Class=Vendor Specific Class, Driver=GobiSerial, 480M
|__ Port 4: Dev 12, If 13, Class=CDC Data, Driver=cdc_mbim, 480M
|__ Port 4: Dev 12, If 3, Class=Vendor Specific Class, Driver=GobiSerial, 480M
|__ Port 7: Dev 6, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 10: Dev 8, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 3: Dev 10, If 1, Class=Wireless, Driver=btusb, 12M
|__ Port 3: Dev 10, If 0, Class=Wireless, Driver=btusb, 12M

$ lsmod | grep -i gobi
GobiSerial 24576 1
usbserial 53248 3 GobiSerial
GobiNet 479232 0
usbnet 49152 3 cdc_mbim,cdc_ncm,GobiNet

$ modinfo GobiNet
filename: /lib/modules/5.8.0-36-generic/kernel/drivers/net/usb/GobiNet.ko
license: Dual BSD/GPL
description: GobiNet
author: Qualcomm Innovation Center
version: 2020-08-17/SWI_2.64
srcversion: 90DDE54A58C64CF46F52CFA
alias: usb:v1199p9081ddcdscdpiciscipin
alias: usb:v1199p9102ddcdscdpiciscipin
alias: usb:v1199p9100ddcdscdpiciscipin
alias: usb:v1199p90C1ddcdscdpiciscipin
alias: usb:v1199p90B1ddcdscdpiciscipin
alias: usb:v1199p9091ddcdscdpiciscipin
alias: usb:v1199p9070ddcdscdpiciscipin
alias: usb:v1199p9061ddcdscdpiciscipin
alias: usb:v1199p9056ddcdscdpiciscipin
alias: usb:v1199p9055ddcdscdpiciscipin
alias: usb:v1199p9054ddcdscdpiciscipin
alias: usb:v1199p9053ddcdscdpiciscipin
alias: usb:v1199p9051ddcdscdpiciscipin
alias: usb:v1199p9041ddcdscdpiciscipin
alias: usb:v1199p68C0ddcdscdpiciscipin
alias: usb:v1199p9071ddcdscdpiciscipin
alias: usb:v1199p9019ddcdscdpiciscipin
alias: usb:v1199p9015ddcdscdpiciscipin
alias: usb:v1199p9013ddcdscdpiciscipin
alias: usb:v1199p9011ddcdscdpiciscipin
alias: usb:v05C6p920Dddcdscdpiciscipin
alias: usb:v1199p68A2ddcdscdpiciscipin
depends: usbnet
retpoline: Y
name: GobiNet
vermagic: 5.8.0-36-generic SMP mod_unload
parm: debug:Debuging enabled or not (int)
parm: qos_debug:QoS Debuging enabled or not (int)
parm: interruptible:Listen for and return on user interrupt (int)
parm: txQueueLength:Number of IP packets which may be queued up for transmit (int)
parm: iTEEnable:-1 : Ignore TE flow Control, 0 : TE Flow Control disabled, 1 : TE Flow Control enabled (int)
parm: iRAWIPEnable:RAWIP enabled or not (int)
parm: iQMAPEnable:-1: Auto, 0 : QMAP disabled, 1 : QMAP enabled (int)
parm: iMaxQMUXSupported:-1: Auto, Max QMUX instance support (int)
parm: iIPAlias:0 = virtual adapter , 1 (default) = IP alias (int)
parm: iEthSrcMACNonZero:0(default) = Ethernet Header Source Address : Zeros , 1 = Ethernet Header Source Address: Non-zero (int)
parm: wakelock_debug:Wake lock debug enabled or not (int)
parm: iAutoIPAddress:0(default) = Manual assgin IP address to adaptor : Zeros , 1 = Get IP address via QMI (int)
parm: wakelock_timeout:-1 : 0 seconds, Number of second wakelock will be released after resume (int)
parm: resume_delay_ms:1000(default) : Delay before resume in millisecond (int)
parm: qmi_service_awake_timeout:-1 : 8 seconds, Number of second wakelock will be released after selected QMI servcie request send (int)
parm: rt_local_priority:-1(default) : ROUTE_TABLE_LOCAL_PRIORITY: 0, local lookup priority number (int)
parm: rt_main_priority:-1(default) : ROUTE_TABLE_MAIN_PRIORITY: 1, main lookup priority number (int)
parm: rt_default_priority:-1(default) : ROUTE_TABLE_DEFAULT_PRIORITY: 32767, default lookup priority number (int)

$ dmesg | grep -E ‘usb|Gobi|qmi’
[ 0.438036] usbcore: registered new interface driver usbfs
[ 0.438036] usbcore: registered new interface driver hub
[ 0.438036] usbcore: registered new device driver usb
[ 2.857026] usb 1-5.3: new high-speed USB device number 7 using xhci_hcd
[ 2.958238] usb 1-5.3: config 1 has an invalid interface number: 12 but max is 4
[ 2.958242] usb 1-5.3: config 1 has an invalid interface number: 13 but max is 4
[ 2.958245] usb 1-5.3: config 1 has an invalid interface number: 13 but max is 4
[ 2.958247] usb 1-5.3: config 1 has no interface number 1
[ 2.958250] usb 1-5.3: config 1 has no interface number 4
[ 2.959912] usb 1-5.3: New USB device found, idVendor=1199, idProduct=9091, bcdDevice= 0.06
[ 2.959917] usb 1-5.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2.959920] usb 1-5.3: Product: Sierra Wireless EM7565 Qualcomm® Snapdragon™ X16 LTE-A
[ 2.959923] usb 1-5.3: Manufacturer: Sierra Wireless, Incorporated
[ 2.959926] usb 1-5.3: SerialNumber: UF01627087011047
[ 3.244640] usbcore: registered new interface driver usb-storage
[ 3.246157] usbcore: registered new interface driver uas
[ 3.252694] usbcore: registered new interface driver usbhid
[ 3.252695] usbhid: USB HID core driver
[ 3.318758] usb 1-5.4: new high-speed USB device number 9 using xhci_hcd
[ 3.417922] usb 1-5.4: config 1 has an invalid interface number: 12 but max is 4
[ 3.417927] usb 1-5.4: config 1 has an invalid interface number: 13 but max is 4
[ 3.417930] usb 1-5.4: config 1 has an invalid interface number: 13 but max is 4
[ 3.417933] usb 1-5.4: config 1 has no interface number 1
[ 3.417936] usb 1-5.4: config 1 has no interface number 4
[ 3.418824] usb 1-5.4: New USB device found, idVendor=1199, idProduct=9091, bcdDevice= 0.06
[ 3.418829] usb 1-5.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3.418833] usb 1-5.4: Product: Sierra Wireless EM7565 Qualcomm® Snapdragon™ X16 LTE-A
[ 3.418836] usb 1-5.4: Manufacturer: Sierra Wireless, Incorporated
[ 3.418839] usb 1-5.4: SerialNumber: UF93819161021546
[ 5.393798] GobiNet: loading out-of-tree module taints kernel.
[ 5.393955] GobiNet: module verification failed: signature and/or required key missing - tainting kernel
[ 5.394763] GobiNet: 2020-08-17/SWI_2.64
[ 5.394899] usbcore: registered new interface driver GobiNet
[ 5.397183] usbcore: registered new interface driver cdc_ncm
[ 5.402372] usbcore: registered new interface driver cdc_wdm
[ 5.449488] usbcore: registered new interface driver usbserial_generic
[ 5.449494] usbserial: USB Serial support registered for generic
[ 5.450306] usbcore: registered new interface driver GobiSerial
[ 5.450312] usbserial: USB Serial support registered for GobiSerial
[ 5.451009] usbcore: registered new interface driver btusb
[ 5.470039] cdc_mbim 1-5.3:1.12 wwan0: register ‘cdc_mbim’ at usb-0000:00:14.0-5.3, CDC MBIM, 7e:e0:b7:ba:72:95
[ 5.470556] GobiSerial 1-5.3:1.0: GobiSerial converter detected
[ 5.470609] usb 1-5.3: GobiSerial converter now attached to ttyUSB0
[ 5.471623] GobiSerial 1-5.3:1.2: GobiSerial converter detected
[ 5.471656] usb 1-5.3: GobiSerial converter now attached to ttyUSB1
[ 5.472407] GobiSerial 1-5.3:1.3: GobiSerial converter detected
[ 5.472437] usb 1-5.3: GobiSerial converter now attached to ttyUSB2
[ 5.494241] cdc_mbim 1-5.4:1.12 wwan1: register ‘cdc_mbim’ at usb-0000:00:14.0-5.4, CDC MBIM, 7e:e0:b7:ba:72:95
[ 5.494270] usbcore: registered new interface driver cdc_mbim
[ 5.494753] GobiSerial 1-5.4:1.0: GobiSerial converter detected
[ 5.494837] usb 1-5.4: GobiSerial converter now attached to ttyUSB3
[ 5.495339] GobiSerial 1-5.4:1.2: GobiSerial converter detected
[ 5.495390] usb 1-5.4: GobiSerial converter now attached to ttyUSB4
[ 5.495994] GobiSerial 1-5.4:1.3: GobiSerial converter detected
[ 5.496059] usb 1-5.4: GobiSerial converter now attached to ttyUSB5
[ 5.496084] GobiSerial: 2020-08-17/SWI_2.42:GobiSerial
[ 5.918474] audit: type=1400 audit(1610613386.486:2): apparmor=“STATUS” operation=“profile_load” profile=“unconfined” name=“ippusbxd” pid=628 comm=“apparmor_parser”
[ 28.507755] usb 1-5.3: USB disconnect, device number 7
[ 28.508331] GobiSerial driver ttyUSB0: GobiSerial converter now disconnected from ttyUSB0
[ 28.508398] GobiSerial 1-5.3:1.0: device disconnected
[ 28.509000] GobiSerial driver ttyUSB1: GobiSerial converter now disconnected from ttyUSB1
[ 28.509051] GobiSerial 1-5.3:1.2: device disconnected
[ 28.509649] GobiSerial driver ttyUSB2: GobiSerial converter now disconnected from ttyUSB2
[ 28.509709] GobiSerial 1-5.3:1.3: device disconnected
[ 28.509880] cdc_mbim 1-5.3:1.12 wwan0: unregister ‘cdc_mbim’ usb-0000:00:14.0-5.3, CDC MBIM
[ 28.763424] usb 1-5.4: USB disconnect, device number 9
[ 28.763604] GobiSerial driver ttyUSB3: GobiSerial converter now disconnected from ttyUSB3
[ 28.763617] GobiSerial 1-5.4:1.0: device disconnected
[ 28.763767] GobiSerial driver ttyUSB4: GobiSerial converter now disconnected from ttyUSB4
[ 28.763777] GobiSerial 1-5.4:1.2: device disconnected
[ 28.763867] GobiSerial driver ttyUSB5: GobiSerial converter now disconnected from ttyUSB5
[ 28.763875] GobiSerial 1-5.4:1.3: device disconnected
[ 28.763907] cdc_mbim 1-5.4:1.12 wwan1: unregister ‘cdc_mbim’ usb-0000:00:14.0-5.4, CDC MBIM
[ 37.777128] usb 1-5.3: new high-speed USB device number 11 using xhci_hcd
[ 37.878870] usb 1-5.3: config 1 has an invalid interface number: 12 but max is 4
[ 37.878877] usb 1-5.3: config 1 has an invalid interface number: 13 but max is 4
[ 37.878881] usb 1-5.3: config 1 has an invalid interface number: 13 but max is 4
[ 37.878885] usb 1-5.3: config 1 has no interface number 1
[ 37.878888] usb 1-5.3: config 1 has no interface number 4
[ 37.879852] usb 1-5.3: New USB device found, idVendor=1199, idProduct=9091, bcdDevice= 0.06
[ 37.879859] usb 1-5.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 37.879864] usb 1-5.3: Product: Sierra Wireless EM7565 Qualcomm® Snapdragon™ X16 LTE-A
[ 37.879868] usb 1-5.3: Manufacturer: Sierra Wireless, Incorporated
[ 37.879872] usb 1-5.3: SerialNumber: UF01627087011047
[ 37.885654] GobiSerial 1-5.3:1.0: GobiSerial converter detected
[ 37.886066] usb 1-5.3: GobiSerial converter now attached to ttyUSB0
[ 37.886901] GobiSerial 1-5.3:1.2: GobiSerial converter detected
[ 37.887035] usb 1-5.3: GobiSerial converter now attached to ttyUSB1
[ 37.887897] GobiSerial 1-5.3:1.3: GobiSerial converter detected
[ 37.888043] usb 1-5.3: GobiSerial converter now attached to ttyUSB2
[ 37.911368] cdc_mbim 1-5.3:1.12 wwan0: register ‘cdc_mbim’ at usb-0000:00:14.0-5.3, CDC MBIM, 7e:e0:b7:ba:72:95
[ 37.989105] usb 1-5.4: new high-speed USB device number 12 using xhci_hcd
[ 38.090852] usb 1-5.4: config 1 has an invalid interface number: 12 but max is 4
[ 38.090859] usb 1-5.4: config 1 has an invalid interface number: 13 but max is 4
[ 38.090863] usb 1-5.4: config 1 has an invalid interface number: 13 but max is 4
[ 38.090867] usb 1-5.4: config 1 has no interface number 1
[ 38.090870] usb 1-5.4: config 1 has no interface number 4
[ 38.091655] usb 1-5.4: New USB device found, idVendor=1199, idProduct=9091, bcdDevice= 0.06
[ 38.091662] usb 1-5.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 38.091667] usb 1-5.4: Product: Sierra Wireless EM7565 Qualcomm® Snapdragon™ X16 LTE-A
[ 38.091671] usb 1-5.4: Manufacturer: Sierra Wireless, Incorporated
[ 38.091674] usb 1-5.4: SerialNumber: UF93819161021546
[ 38.097624] GobiSerial 1-5.4:1.0: GobiSerial converter detected
[ 38.097975] usb 1-5.4: GobiSerial converter now attached to ttyUSB3
[ 38.099050] GobiSerial 1-5.4:1.2: GobiSerial converter detected
[ 38.099372] usb 1-5.4: GobiSerial converter now attached to ttyUSB4
[ 38.100513] GobiSerial 1-5.4:1.3: GobiSerial converter detected
[ 38.100763] usb 1-5.4: GobiSerial converter now attached to ttyUSB5
[ 38.123848] cdc_mbim 1-5.4:1.12 wwan1: register ‘cdc_mbim’ at usb-0000:00:14.0-5.4, CDC MBIM, 7e:e0:b7:ba:72:95

Many thanks.

2

[ 5.393955] GobiNet: module verification failed: signature and/or required key missing - tainting kernel

3

@tim.meyer

Re the driver question, no the drivers on the source are fine, you don’t need to get anything special from anyone.

It might be your USB configuration, if you send the below AT commands to the unit it will give us some more information.

ati
at!pcinfo?
at!gstatus?
at!entercnd="A710"
at!usbcomp?

Also from a termnal on your system can you send the following

modinfo GobiSerial
modinfo GobiNet

Regards

Matt

4

Hi Matt, thanks for your reply - here’s the information you requested:

//*********************************
Welcome to minicom 2.7.1

Port /dev/ttyUSB2, 14:14:32

ati
Manufacturer: Sierra Wireless, Incorporated
Model: EM7565
Revision: SWI9X50C_01.08.04.00 dbb5d0 jenkins 2018/08/21 21:40:11
IMEI: 353533101007782
IMEI SV: 8
FSN: UF016270870110
+GCAP: +CGSM,+DS,+ES
OK

at!pcinfo?
State: Online
LPM voters - Temp:0, Volt:0, User:0, W_DISABLE:0, IMSWITCH:0, BIOS:0, LWM2M:0, OMADM:0, FOTA:0, RFCAL:0
LPM persistence - None
OK

at!gstatus?
!GSTATUS:
Current Time: 20392 Temperature: 32
Reset Counter: 2 Mode: ONLINE
System mode: WCDMA PS state: Not attached
WCDMA band: WCDMA 2100
WCDMA channel: 10761
MM (CS) state: IDLE NO IMSI

WCDMA L1 state:L1M_PCH_SLEEP LAC: 0442 (1090)
RRC state: DISCONNECTED UTRAN Cell ID: 009ad872 (10147954)
RxM RSSI C0: -96 RxD RSSI C0: —
RxM RSSI C1: — RxD RSSI C1: —
OK

at!entercnd=“A710”
OK

at!usbcomp?
Config Index: 1
Config Type: 3 (Generic)
Interface bitmask: 0000100D (diag,nmea,modem,mbim)
OK
//*************************************************

$ modinfo GobiNet
filename: /lib/modules/5.8.0-36-generic/kernel/drivers/net/usb/GobiNet.ko
license: Dual BSD/GPL
description: GobiNet
author: Qualcomm Innovation Center
version: 2020-08-17/SWI_2.64
srcversion: 90DDE54A58C64CF46F52CFA
alias: usb:v1199p9081ddcdscdpiciscipin
alias: usb:v1199p9102ddcdscdpiciscipin
alias: usb:v1199p9100ddcdscdpiciscipin
alias: usb:v1199p90C1ddcdscdpiciscipin
alias: usb:v1199p90B1ddcdscdpiciscipin
alias: usb:v1199p9091ddcdscdpiciscipin
alias: usb:v1199p9070ddcdscdpiciscipin
alias: usb:v1199p9061ddcdscdpiciscipin
alias: usb:v1199p9056ddcdscdpiciscipin
alias: usb:v1199p9055ddcdscdpiciscipin
alias: usb:v1199p9054ddcdscdpiciscipin
alias: usb:v1199p9053ddcdscdpiciscipin
alias: usb:v1199p9051ddcdscdpiciscipin
alias: usb:v1199p9041ddcdscdpiciscipin
alias: usb:v1199p68C0ddcdscdpiciscipin
alias: usb:v1199p9071ddcdscdpiciscipin
alias: usb:v1199p9019ddcdscdpiciscipin
alias: usb:v1199p9015ddcdscdpiciscipin
alias: usb:v1199p9013ddcdscdpiciscipin
alias: usb:v1199p9011ddcdscdpiciscipin
alias: usb:v05C6p920Dddcdscdpiciscipin
alias: usb:v1199p68A2ddcdscdpiciscipin
depends: usbnet
retpoline: Y
name: GobiNet
vermagic: 5.8.0-36-generic SMP mod_unload
parm: debug:Debuging enabled or not (int)
parm: qos_debug:QoS Debuging enabled or not (int)
parm: interruptible:Listen for and return on user interrupt (int)
parm: txQueueLength:Number of IP packets which may be queued up for transmit (int)
parm: iTEEnable:-1 : Ignore TE flow Control, 0 : TE Flow Control disabled, 1 : TE Flow Control enabled (int)
parm: iRAWIPEnable:RAWIP enabled or not (int)
parm: iQMAPEnable:-1: Auto, 0 : QMAP disabled, 1 : QMAP enabled (int)
parm: iMaxQMUXSupported:-1: Auto, Max QMUX instance support (int)
parm: iIPAlias:0 = virtual adapter , 1 (default) = IP alias (int)
parm: iEthSrcMACNonZero:0(default) = Ethernet Header Source Address : Zeros , 1 = Ethernet Header Source Address: Non-zero (int)
parm: wakelock_debug:Wake lock debug enabled or not (int)
parm: iAutoIPAddress:0(default) = Manual assgin IP address to adaptor : Zeros , 1 = Get IP address via QMI (int)
parm: wakelock_timeout:-1 : 0 seconds, Number of second wakelock will be released after resume (int)
parm: resume_delay_ms:1000(default) : Delay before resume in millisecond (int)
parm: qmi_service_awake_timeout:-1 : 8 seconds, Number of second wakelock will be released after selected QMI servcie request send (int)
parm: rt_local_priority:-1(default) : ROUTE_TABLE_LOCAL_PRIORITY: 0, local lookup priority number (int)
parm: rt_main_priority:-1(default) : ROUTE_TABLE_MAIN_PRIORITY: 1, main lookup priority number (int)
parm: rt_default_priority:-1(default) : ROUTE_TABLE_DEFAULT_PRIORITY: 32767, default lookup priority number (int)

// ***********************************************************

$ modinfo GobiSerial
filename: /lib/modules/5.8.0-36-generic/kernel/drivers/usb/serial/GobiSerial.ko
license: Dual BSD/GPL
description: GobiSerial
author: Qualcomm Innovation Center
version: 2020-08-17/SWI_2.42
srcversion: 2395A30B92A702B5F7C46D1
alias: usb:v1199p9061ddcdscdpiciscipin
alias: usb:v1199p9060ddcdscdpiciscipin
alias: usb:v1199p9056ddcdscdpiciscipin
alias: usb:v1199p9055ddcdscdpiciscipin
alias: usb:v1199p9054ddcdscdpiciscipin
alias: usb:v1199p9053ddcdscdpiciscipin
alias: usb:v1199p9051ddcdscdpiciscipin
alias: usb:v1199p9041ddcdscdpiciscipin
alias: usb:v1199p9040ddcdscdpiciscipin
alias: usb:v1199p9019ddcdscdpiciscipin
alias: usb:v1199p9018ddcdscdpiciscipin
alias: usb:v1199p9015ddcdscdpiciscipin
alias: usb:v1199p9014ddcdscdpiciscipin
alias: usb:v1199p9013ddcdscdpiciscipin
alias: usb:v1199p9012ddcdscdpiciscipin
alias: usb:v1199p9011ddcdscdpiciscipin
alias: usb:v1199p9010ddcdscdpiciscipin
alias: usb:v1199p9080ddcdscdpiciscipin
alias: usb:v1199p9081ddcdscdpiciscipin
alias: usb:v1199p90C1ddcdscdpiciscipin
alias: usb:v1199p90C0ddcdscdpiciscipin
alias: usb:v1199p90B1ddcdscdpiciscipin
alias: usb:v1199p90B0ddcdscdpiciscipin
alias: usb:v1199p9091ddcdscdpiciscipin
alias: usb:v1199p9090ddcdscdpiciscipin
alias: usb:v1199p9102ddcdscdpiciscipin
alias: usb:v1199p9100ddcdscdpiciscipin
alias: usb:v1199p9070ddcdscdpiciscipin
alias: usb:v1199p9071ddcdscdpiciscipin
alias: usb:v1199p68C0ddcdscdpiciscipin
alias: usb:v1199p68A2ddcdscdpiciscipin
alias: usb:v05C6p920Dddcdscdpiciscipin
alias: usb:v05C6p920Cddcdscdpiciscipin
depends: usbserial
retpoline: Y
name: GobiSerial
vermagic: 5.8.0-36-generic SMP mod_unload
parm: debug:Debug enabled or not (int)
parm: flow_control:flow control enabled or not (int)
parm: ignore_gps_start_error:allow port open to success even when GPS control message failed (int)
parm: delay_open_gps_port:Delay Open GPS Port, after device ready (int)
parm: iusb3_zlp_enable:0 = Disable , 1 (default) ZLP on USB3 in QDL mode (int)

5

@tim.meyer

So your problem is the mode the unit is in as can be seen from the response to the at!usbcomp? command.

Interface bitmask: 0000100D (diag,nmea,modem,mbim)

You probably have a cdc-wdm device buried in your ls /dev response.

You need to send the below to set it to RMNet

at!entercnd="A710"
at!usbcomp=1,1,10D

Regards

Matt

6

@mlw

That worked! Thanks very much, I really appreciate it.

As a follow on question, is there any documentation that would have me helped me solve this? I feel that without your help, I would still be scratching my head just using the Application developers guide.

7

@tim.meyer

I guess there probably was not a document that would have specifically directed you to this but then the unit was not in the normal configuration so has gotten changed at some point.

All it would really have taken was seeing the interfaces were missing, what were enumerating, looking at the syslog which should then have enabled you to focus on the enumeration config which was controlled using the usbcomp command so I am sure you would have got there in the end.

Regards

Matt