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    Quectel 5G Modem seg faults

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    • P
      pthomason
      last edited by

      voxl-modem reports Segmentation Fault after configuration of either vzwinternet or Custom (internet) APN and connection attempt.

      voxl2:/$ journalctl -u voxl-modem.service
      -- Logs begin at Thu 2023-03-02 12:58:02 UTC, end at Thu 2023-03-02 15:07:27 UTC. --
      Mar 02 13:38:19 m0054 systemd[1]: Starting Modem Initialization...
      Mar 02 13:38:21 m0054 systemd[1]: Started Modem Initialization.
      Mar 02 13:38:21 m0054 voxl-modem-start[3617]: qrb5165 based hardware detected...
      Mar 02 13:38:21 m0054 voxl-modem-start[3617]: \Setting mode preference to LTE / 5G
      Mar 02 13:38:21 m0054 voxl-modem-start[3617]: microcom: can't open '/dev/ttyUSB2': No such file or directory
      Mar 02 13:38:21 m0054 voxl-modem-start[3617]: Initalizing cellular connection...
      Mar 02 13:38:23 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3638 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:38:30 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3654 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:38:37 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3671 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:38:44 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3690 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:38:52 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3711 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:38:59 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3728 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:39:06 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3752 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:39:08 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3769 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:39:09 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3786 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:39:17 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3803 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:39:24 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3826 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:39:31 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3843 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:39:38 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3869 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:39:45 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3886 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:39:53 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3904 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:40:00 m0054 voxl-modem-start[3617]: /usr/bin/voxl-modem-start: line 300:  3927 Segmentation fault      quectel-CM -s $APN
      Mar 02 13:40:05 m0054 systemd[1]: Stopping Modem Initialization...
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:00:275] Quectel_QConnectManager_Linux_V1.6.0.24
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:00:278] Auto find qmichannel = /dev/cdc-wdm0
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:00:278] Auto find usbnet_adapter = wwan0
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:00:278] netcard driver = cdc_mbim, driver version = 22-Aug-2005
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:00:278] Modem works in MBIM mode
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:00:307] cdc_wdm_fd = 7
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:00:307] mbim_open_device()
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:293] mbim_device_caps_query()
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:325] DeviceId:     358186652129987
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:325] HardwareInfo: EM9291
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:325] mbim_device_services_query()
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:389] mbim_set_radio_state( 1 )
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:421] HwRadioState: 1, SwRadioState: 1
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:421] mbim_subscriber_status_query()
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:453] SubscriberId: 999999123456832
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:453] SimIccId:     8999462208221061257F
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:453] SubscriberReadyState NotInitialized -> Initialized
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:453] mbim_register_state_query()
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:614] RegisterState Unknown -> Home
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:614] mbim_packet_service_query()
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:645] PacketServiceState Unknown -> Attached
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:645] CurrentDataClass = Custom
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:645] mbim_query_connect(sessionID=0)
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:677] ActivationState Unknown -> Deactivated
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:677] ifconfig wwan0 0.0.0.0
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:687] ifconfig wwan0 down
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:701] mbim_set_connect(onoff=1, sessionID=0)
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:805] <03:00:00:80:54:00:00:00:0A:00:00:00:01:00:00:00:00:00:00:00:A2:8
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < Header:
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < MessageLength = 84
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < MessageType =  MBIM_COMMAND_DONE (0x80000003)
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < TransactionId = 10
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < Contents:
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < DeviceServiceId = UUID_BASIC_CONNECT (a289cc33-bcbb-8b4f-b6b0-1
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < CID = MBIM_CID_CONNECT (12)
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < Status = 2
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < InformationBufferLength = 36
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < SessionId = 0
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < ActivationState = Deactivated (3)
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < IPType = MBIMContextIPTypeDefault
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < VoiceCallState = None
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < ContextType = 7e5e2a7e-4e6f-7272-736b-656e7e5e2a7e
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] < NwError = 0
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] mbim_set_connect:1940 err=0, Status=2
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] try to requestSetupDataCall 5 second later
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:806] mbim_register_state_query()
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:869] mbim_packet_service_query()
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:901] CurrentDataClass = Custom
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:901] mbim_register_state_query()
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:933] mbim_packet_service_query()
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:01:965] CurrentDataClass = Custom
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:05:387] mbim_close_device()
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:05:453] mbim_read_thread exit
      Mar 02 13:40:05 m0054 voxl-modem-start[3617]: [03-02_13:40:05:454] qmi_main exit
      Mar 02 13:40:05 m0054 systemd[1]: Stopped Modem Initialization.
      Mar 02 13:40:05 m0054 systemd[1]: Starting Modem Initialization...
      Mar 02 13:40:07 m0054 systemd[1]: Started Modem Initialization.
      Mar 02 13:40:07 m0054 voxl-modem-start[4004]: qrb5165 based hardware detected...
      Mar 02 13:40:07 m0054 voxl-modem-start[4004]: \Setting mode preference to LTE / 5G
      Mar 02 13:40:07 m0054 voxl-modem-start[4004]: microcom: can't open '/dev/ttyUSB2': No such file or directory
      Mar 02 13:40:07 m0054 voxl-modem-start[4004]: Initalizing cellular connection...
      Mar 02 13:40:09 m0054 voxl-modem-start[4004]: /usr/bin/voxl-modem-start: line 300:  4025 Segmentation fault      quectel-CM -s $APN
      

      With voxl-modem stopped, using Quectel-CM we can see attach and APN connection then crash...

      voxl2:/$ systemctl stop voxl-modem
      voxl2:/$ quectel-CM
      [03-02_13:06:54:567] Quectel_QConnectManager_Linux_V1.6.0.24
      [03-02_13:06:54:572] Auto find qmichannel = /dev/cdc-wdm0
      [03-02_13:06:54:572] Auto find usbnet_adapter = wwan0
      [03-02_13:06:54:572] netcard driver = cdc_mbim, driver version = 22-Aug-2005
      [03-02_13:06:54:574] Modem works in MBIM mode
      [03-02_13:06:54:609] cdc_wdm_fd = 7
      [03-02_13:06:54:609] mbim_open_device()
      [03-02_13:06:55:382] mbim_device_caps_query()
      [03-02_13:06:55:414] DeviceId:     358186652129987
      [03-02_13:06:55:414] HardwareInfo: EM9291
      [03-02_13:06:55:414] mbim_device_services_query()
      [03-02_13:06:55:481] mbim_set_radio_state( 1 )
      [03-02_13:06:55:510] HwRadioState: 1, SwRadioState: 1
      [03-02_13:06:55:511] mbim_subscriber_status_query()
      [03-02_13:06:55:542] SubscriberId: 999999123456832
      [03-02_13:06:55:542] SimIccId:     8999462208221061257F
      [03-02_13:06:55:542] SubscriberReadyState NotInitialized -> Initialized
      [03-02_13:06:55:542] mbim_register_state_query()
      [03-02_13:06:55:702] RegisterState Unknown -> Home
      [03-02_13:06:55:702] mbim_packet_service_query()
      [03-02_13:06:55:736] PacketServiceState Unknown -> Attached
      [03-02_13:06:55:736] CurrentDataClass = Custom
      [03-02_13:06:55:737] mbim_query_connect(sessionID=0)
      [03-02_13:06:55:766] ActivationState Unknown -> Deactivated
      [03-02_13:06:55:766] ifconfig wwan0 0.0.0.0
      [03-02_13:06:55:790] ifconfig wwan0 down
      [03-02_13:06:55:806] mbim_register_state_query()
      [03-02_13:06:55:830] mbim_packet_service_query()
      [03-02_13:06:55:862] CurrentDataClass = Custom
      [03-02_13:06:55:862] mbim_set_connect(onoff=1, sessionID=0)
      [03-02_13:06:56:214] ActivationState Deactivated -> Activated
      [03-02_13:06:56:217] mbim_ip_config(sessionID=0)
      [03-02_13:06:56:279] < SessionId = 0
      [03-02_13:06:56:281] < IPv4ConfigurationAvailable = 0xf
      [03-02_13:06:56:281] < IPv6ConfigurationAvailable = 0x0
      [03-02_13:06:56:282] < IPv4AddressCount = 0x1
      [03-02_13:06:56:282] < IPv4AddressOffset = 0x3c
      [03-02_13:06:56:282] < IPv6AddressCount = 0x0
      [03-02_13:06:56:285] < IPv6AddressOffset = 0x0
      [03-02_13:06:56:285] < IPv4 = 10.254.2.20/29
      [03-02_13:06:56:285] < gw = 10.254.2.21
      [03-02_13:06:56:286] < dns1 = 10.237.173.137
      [03-02_13:06:56:286] < ipv4 mtu = 1392
      Segmentation fault
      

      Drone is as-delivered, no updates attempted yet.

      tomT 1 Reply Last reply Reply Quote 0
      • tomT
        tom admin @pthomason
        last edited by

        @pthomason I haven't seen this before personally. What version of the SDK are you running? You can check this with voxl-version

        I also see microcom: can't open '/dev/ttyUSB2': No such file or directory which is abnormal, if the modem is enumerating correctly then /dev/ttyUSB2 should exist

        P 1 Reply Last reply Reply Quote 0
        • P
          pthomason @tom
          last edited by

          @tom

          I believe we're on SDK 1.2.0..

          voxl2:/$ voxl-version
          --------------------------------------------------------------------------------
          system-image: 1.7.6-M0054-14.1a-perf
          kernel:       #1 SMP PREEMPT Wed Mar 20 19:48:52 UTC 2024 4.19.125
          --------------------------------------------------------------------------------
          hw platform:  M0054
          mach.var:     1.0
          --------------------------------------------------------------------------------
          voxl-suite:   1.2.0
          --------------------------------------------------------------------------------
          Packages:
          Repo:  http://voxl-packages.modalai.com/ ./dists/qrb5165/sdk-1.2/binary-arm64/
          Last Updated: 2023-03-02 12:58:39
          WARNING: repo file has changed since last update,
                  packages may have originated from a different repo
          List:
          kernel-module-voxl-fsync-mod-4.19.125     1.0-r0
          kernel-module-voxl-gpio-mod-4.19.125      1.0-r0
          kernel-module-voxl-platform-mod-4.19.125  1.0-r0
          libfc-sensor                              1.0.5
          libmodal-cv                               0.4.0
          libmodal-exposure                         0.1.0
          libmodal-journal                          0.2.2
          libmodal-json                             0.4.3
          libmodal-pipe                             2.10.0
          libqrb5165-io                             0.4.5
          libvoxl-cci-direct                        0.2.1
          libvoxl-cutils                            0.1.1
          modalai-slpi                              1.1.12
          mv-voxl                                   0.1-r0
          qrb5165-bind                              0.1-r0
          qrb5165-dfs-server                        0.2.0
          qrb5165-imu-server                        1.0.1
          qrb5165-rangefinder-server                0.1.1
          qrb5165-slpi-test-sig                     01-r0
          qrb5165-system-tweaks                     0.2.6
          qrb5165-tflite                            2.8.0-2
          voxl-bind-spektrum                        0.1.1
          voxl-camera-calibration                   0.5.4
          voxl-camera-server                        1.9.1
          voxl-ceres-solver                         2:1.14.0-10
          voxl-configurator                         0.5.6
          voxl-cpu-monitor                          0.4.8
          voxl-docker-support                       1.3.1
          voxl-elrs                                 0.1.3
          voxl-esc                                  1.4.0
          voxl-feature-tracker                      0.3.2
          voxl-flow-server                          0.3.3
          voxl-fsync-mod                            1.0-r0
          voxl-gphoto2-server                       0.0.10
          voxl-gpio-mod                             1.0-r0
          voxl-jpeg-turbo                           2.1.3-5
          voxl-lepton-server                        1.2.0
          voxl-libgphoto2                           0.0.4
          voxl-libuvc                               1.0.7
          voxl-logger                               0.4.0
          voxl-mavcam-manager                       0.5.3
          voxl-mavlink                              0.1.1
          voxl-mavlink-server                       1.4.0
          voxl-modem                                1.0.9
          voxl-mongoose                             7.7.0-1
          voxl-mpa-to-ros                           0.3.7
          voxl-mpa-tools                            1.1.5
          voxl-neopixel-manager                     0.0.3
          voxl-open-vins                            0.4.4
          voxl-open-vins-server                     0.2.18
          voxl-opencv                               4.5.5-2
          voxl-platform-mod                         1.0-r0
          voxl-portal                               0.6.5
          voxl-px4                                  1.14.0-2.0.68
          voxl-px4-imu-server                       0.1.2
          voxl-px4-params                           0.3.8
          voxl-qvio-server                          1.0.2
          voxl-remote-id                            0.0.9
          voxl-streamer                             0.7.4
          voxl-suite                                1.2.0
          voxl-tag-detector                         0.0.4
          voxl-tflite-server                        0.3.2
          voxl-utils                                1.3.9
          voxl-uvc-server                           0.1.6
          voxl-vision-hub                           1.7.4
          voxl2-system-image                        1.7.6-r0
          voxl2-wlan                                1.0-r0
          --------------------------------------------------------------------------------
          
          tomT 1 Reply Last reply Reply Quote 0
          • tomT
            tom admin @pthomason
            last edited by

            @pthomason How about ifconfig, lsusb, and lsusb -t. Wondering if ithe drivers are picking it up.

            P 1 Reply Last reply Reply Quote 0
            • P
              pthomason @tom
              last edited by

              @tom
              I believe the system is seeing the modem.
              ifconfig

              voxl2:/$ ifconfig
              bond0: flags=5123<UP,BROADCAST,MASTER,MULTICAST>  mtu 1500
                      ether e6:26:28:f5:c3:21  txqueuelen 1000  (Ethernet)
                      RX packets 0  bytes 0 (0.0 B)
                      RX errors 0  dropped 0  overruns 0  frame 0
                      TX packets 0  bytes 0 (0.0 B)
                      TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
              
              dummy0: flags=195<UP,BROADCAST,RUNNING,NOARP>  mtu 1500
                      inet6 fe80::2000:8a54:2e31:b142  prefixlen 64  scopeid 0x20<link>
                      ether 92:70:d1:73:86:6a  txqueuelen 1000  (Ethernet)
                      RX packets 0  bytes 0 (0.0 B)
                      RX errors 0  dropped 0  overruns 0  frame 0
                      TX packets 97  bytes 32086 (32.0 KB)
                      TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
              
              lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
                      inet 127.0.0.1  netmask 255.0.0.0
                      inet6 ::1  prefixlen 128  scopeid 0x10<host>
                      loop  txqueuelen 1000  (Local Loopback)
                      RX packets 2248527  bytes 246402579 (246.4 MB)
                      RX errors 0  dropped 0  overruns 0  frame 0
                      TX packets 2248527  bytes 246402579 (246.4 MB)
                      TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
              
              wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 2312
                      inet 192.168.8.1  netmask 255.255.255.0  broadcast 192.168.8.255
                      inet6 fe80::206b:34a1:b142:1286  prefixlen 64  scopeid 0x20<link>
                      ether 00:c0:ca:b5:ab:77  txqueuelen 1000  (Ethernet)
                      RX packets 3750  bytes 541680 (541.6 KB)
                      RX errors 0  dropped 0  overruns 0  frame 0
                      TX packets 154460  bytes 16419695 (16.4 MB)
                      TX errors 0  dropped 122100 overruns 0  carrier 0  collisions 0
              
              wwan0: flags=4291<UP,BROADCAST,RUNNING,NOARP,MULTICAST>  mtu 1500
                      inet6 fe80::f520:d7f4:4c5:dc9f  prefixlen 64  scopeid 0x20<link>
                      ether fe:c0:cf:f3:db:95  txqueuelen 1000  (Ethernet)
                      RX packets 0  bytes 0 (0.0 B)
                      RX errors 0  dropped 0  overruns 0  frame 0
                      TX packets 0  bytes 0 (0.0 B)
                      TX errors 81  dropped 0 overruns 0  carrier 0  collisions 0
              

              lsusb

              voxl2:/$ lsusb
              Bus 002 Device 003: ID 1199:90e3 Sierra Wireless, Inc.
              Bus 002 Device 002: ID 0424:5744 Standard Microsystems Corp.
              Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
              Bus 001 Device 004: ID 0424:2740 Standard Microsystems Corp.
              Bus 001 Device 003: ID 0bda:0811 Realtek Semiconductor Corp.
              Bus 001 Device 002: ID 0424:2744 Standard Microsystems Corp.
              Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
              

              lsusb -t

              voxl2:/$ lsusb
              Bus 002 Device 003: ID 1199:90e3 Sierra Wireless, Inc.
              Bus 002 Device 002: ID 0424:5744 Standard Microsystems Corp.
              Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
              Bus 001 Device 004: ID 0424:2740 Standard Microsystems Corp.
              Bus 001 Device 003: ID 0bda:0811 Realtek Semiconductor Corp.
              Bus 001 Device 002: ID 0424:2744 Standard Microsystems Corp.
              Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
              
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              • tomT
                tom admin @pthomason
                last edited by

                @pthomason Okay so you have a Sierra modem, not a Quectel modem. You'll want to select em9191 when running voxl-configure-modem

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                • P
                  pthomason @tom
                  last edited by

                  @tom

                  Well that's embarrassing, corrected and attached, n78 SA.
                  Thank you.

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