(Devicecode with scopes only) EM06 Sometimes boots without any AT ports

[rslater-cs]

This problem is independent of devicecode as it can be reproduced with only mmcli running.

See here the EM06

• starts with no AT ports
• reboots with AT ports
• reboots again with AT ports
• reboots last time with no AT ports

root@OpenWrt:~/src# mmcli -m 17
  -----------------------------------
  General  |                    path: /org/freedesktop/ModemManager1/Modem/17
           |               device id: 8dc5e5c2b5c996215d6759317b8d05c778fae11d
  -----------------------------------
  Hardware |            manufacturer: Quectel
           |                   model: EM06-E
           |       firmware revision: EM06ELAR03A08M4G
           |          carrier config: ROW_Generic_3GPP
           | carrier config revision: 06010821
           |            h/w revision: 20000
           |               supported: gsm-umts, lte
           |                 current: gsm-umts, lte
           |            equipment id: 866680041259328
  -----------------------------------
  System   |                  device: /sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.2
           |                 drivers: option1, qmi_wwan
           |                  plugin: quectel
           |            primary port: cdc-wdm0
           |                   ports: cdc-wdm0 (qmi), ttyUSB0 (qcdm), ttyUSB1 (gps), wwan0 (net) <<----- no at ports
  -----------------------------------
  Status   |                   state: failed
           |           failed reason: sim-missing
           |             power state: on
  -----------------------------------
  Modes    |               supported: allowed: 3g; preferred: none
           |                          allowed: 4g; preferred: none
           |                          allowed: 3g, 4g; preferred: 4g
           |                          allowed: 3g, 4g; preferred: 3g
           |                 current: allowed: any; preferred: none
  -----------------------------------
  Bands    |               supported: utran-1, utran-3, utran-5, utran-8, eutran-1, eutran-3, 
           |                          eutran-5, eutran-7, eutran-8, eutran-20, eutran-28, eutran-32, 
           |                          eutran-38, eutran-40, eutran-41
  -----------------------------------
  IP       |               supported: ipv4, ipv6, ipv4v6

root@OpenWrt:~/src# mmcli -m 17 -r
successfully reseted the modem

root@OpenWrt:~/src# mmcli -m 18
  -----------------------------------
  General  |                    path: /org/freedesktop/ModemManager1/Modem/18
           |               device id: 8dc5e5c2b5c996215d6759317b8d05c778fae11d
  -----------------------------------
  Hardware |            manufacturer: Quectel
           |                   model: EM06-E
           |       firmware revision: EM06ELAR03A08M4G
           |          carrier config: ROW_Generic_3GPP
           | carrier config revision: 06010821
           |            h/w revision: 20000
           |               supported: gsm-umts, lte
           |                 current: gsm-umts, lte
           |            equipment id: 866680041259328
  -----------------------------------
  System   |                  device: /sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.2
           |                 drivers: option1, qmi_wwan
           |                  plugin: quectel
           |            primary port: cdc-wdm0
           |                   ports: cdc-wdm0 (qmi), ttyUSB0 (qcdm), ttyUSB1 (gps), 
           |                          ttyUSB2 (at), ttyUSB3 (at), wwan0 (net) <<---- at ports
  -----------------------------------
  Status   |                   state: failed
           |           failed reason: sim-missing
           |             power state: on
  -----------------------------------
  Modes    |               supported: allowed: 3g; preferred: none
           |                          allowed: 4g; preferred: none
           |                          allowed: 3g, 4g; preferred: 4g
           |                          allowed: 3g, 4g; preferred: 3g
           |                 current: allowed: any; preferred: none
  -----------------------------------
  Bands    |               supported: utran-1, utran-3, utran-5, utran-8, eutran-1, eutran-3, 
           |                          eutran-5, eutran-7, eutran-8, eutran-20, eutran-28, eutran-32, 
           |                          eutran-38, eutran-40, eutran-41
  -----------------------------------
  IP       |               supported: ipv4, ipv6, ipv4v6

root@OpenWrt:~/src# mmcli -m 18 -r
successfully reseted the modem

root@OpenWrt:~/src# mmcli -m 19
  -----------------------------------
  General  |                    path: /org/freedesktop/ModemManager1/Modem/19
           |               device id: 8dc5e5c2b5c996215d6759317b8d05c778fae11d
  -----------------------------------
  Hardware |            manufacturer: Quectel
           |                   model: EM06-E
           |       firmware revision: EM06ELAR03A08M4G
           |          carrier config: ROW_Generic_3GPP
           | carrier config revision: 06010821
           |            h/w revision: 20000
           |               supported: gsm-umts, lte
           |                 current: gsm-umts, lte
           |            equipment id: 866680041259328
  -----------------------------------
  System   |                  device: /sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.2
           |                 drivers: option1, qmi_wwan
           |                  plugin: quectel
           |            primary port: cdc-wdm0
           |                   ports: cdc-wdm0 (qmi), ttyUSB0 (qcdm), ttyUSB1 (gps), 
           |                          ttyUSB2 (at), ttyUSB3 (at), wwan0 (net) <<----- at ports
  -----------------------------------
  Status   |                   state: failed
           |           failed reason: sim-missing
           |             power state: on
  -----------------------------------
  Modes    |               supported: allowed: 3g; preferred: none
           |                          allowed: 4g; preferred: none
           |                          allowed: 3g, 4g; preferred: 4g
           |                          allowed: 3g, 4g; preferred: 3g
           |                 current: allowed: any; preferred: none
  -----------------------------------
  Bands    |               supported: utran-1, utran-3, utran-5, utran-8, eutran-1, eutran-3, 
           |                          eutran-5, eutran-7, eutran-8, eutran-20, eutran-28, eutran-32, 
           |                          eutran-38, eutran-40, eutran-41
  -----------------------------------
  IP       |               supported: ipv4, ipv6, ipv4v6

root@OpenWrt:~/src# mmcli -m 19 -r
successfully reseted the modem

root@OpenWrt:~/src# mmcli -m 20
  -----------------------------------
  General  |                    path: /org/freedesktop/ModemManager1/Modem/20
           |               device id: 8dc5e5c2b5c996215d6759317b8d05c778fae11d
  -----------------------------------
  Hardware |            manufacturer: Quectel
           |                   model: EM06-E
           |       firmware revision: EM06ELAR03A08M4G
           |          carrier config: ROW_Generic_3GPP
           | carrier config revision: 06010821
           |            h/w revision: 20000
           |               supported: gsm-umts, lte
           |                 current: gsm-umts, lte
           |            equipment id: 866680041259328
  -----------------------------------
  System   |                  device: /sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.2
           |                 drivers: option1, qmi_wwan
           |                  plugin: quectel
           |            primary port: cdc-wdm0
           |                   ports: cdc-wdm0 (qmi), ttyUSB0 (qcdm), ttyUSB1 (gps), wwan0 (net) <<----- no at ports
  -----------------------------------
  Status   |                   state: failed
           |           failed reason: sim-missing
           |             power state: on
  -----------------------------------
  Modes    |               supported: allowed: 3g; preferred: none
           |                          allowed: 4g; preferred: none
           |                          allowed: 3g, 4g; preferred: 4g
           |                          allowed: 3g, 4g; preferred: 3g
           |                 current: allowed: any; preferred: none
  -----------------------------------
  Bands    |               supported: utran-1, utran-3, utran-5, utran-8, eutran-1, eutran-3, 
           |                          eutran-5, eutran-7, eutran-8, eutran-20, eutran-28, eutran-32, 
           |                          eutran-38, eutran-40, eutran-41
  -----------------------------------
  IP       |               supported: ipv4, ipv6, ipv4v6

Not going to make a fix for this now (in migration phase) because:

• This is not part of feature parity (EM06 was not compatible at all before)
• I do not have time nor patience for this petty device