Hi,
For one of the IOT project, I am using SIM7100E mini PCIe
module. I am using connman(1.36) and ofono(1.26) to establish cellular
connection. I am seeing that the same module is sometimes identified as gobi
and sometimes as sim7100 by ofono. Attached the logs for reference:
# lsusb
Bus 003 Device 008: ID 1e0e:9001 Qualcomm / Option
# /usr/lib/ofono/test/list-modems
[ /sim7100_0 ]
Type = hardware
Emergency = 0
Model = SIMCOM_SIM7100E
Serial = 866802021517042
Interfaces = org.ofono.SmartMessaging org.ofono.PushNotification
org.ofono.MessageManager org.ofono.NetworkRegistration
org.ofono.ConnectionManager org.ofono.Phonebook org.ofono.CallMeter
org.ofono.SupplementaryServices org.ofono.CallBarring org.ofono.CallSettings
org.ofono.CallForwarding org.ofono.MessageWaiting org.ofono.AllowedAccessPoints
org.ofono.VoiceCallManager org.ofono.SimManager
SystemPath =
/sys/devices/soc0/soc/30800000.aips-bus/30b30000.usb/ci_hdrc.2/usb3/3-1/3-1.3
Manufacturer = SIMCOM INCORPORATED
Online = 1
Powered = 1
Features = sms net gprs ussd sim
Revision = 4534B06SIM7100E
Lockdown = 0
# /usr/lib/ofono/test/list-modems
[ /gobi_0 ]
Serial = 866802021517042
Interfaces = org.ofono.LongTermEvolution org.ofono.SmartMessaging
org.ofono.PushNotification org.ofono.MessageManager
org.ofono.NetworkRegistration org.ofono.ConnectionManager
org.ofono.SupplementaryServices org.ofono.NetworkMonitor
org.ofono.RadioSettings org.ofono.MessageWaiting org.ofono.AllowedAccessPoints
org.ofono.SimManager org.ofono.VoiceCallManager
Online = 1
Emergency = 0
Features = sms net gprs ussd rat sim
Revision = M9615A-CETWTBZM-6.0.15255 1 [May 13 2016 01:00:00]
Type = hardware
Manufacturer = QUALCOMM INCORPORATED
Powered = 1
Model = SIMCOM_SIM7100E
SystemPath =
/sys/devices/soc0/soc/30800000.aips-bus/30b30000.usb/ci_hdrc.2/usb3/3-1/3-1.3
Lockdown = 0
I looked into the source code of ofono. Gobi and sim7100 both are implemented
as plugin. From the source code (plugins/udevng.c) it looks like the module
should use sim7100 plugin. But it is not always the case for me.
{ "gobi", "qmi_wwan" },
{ "gobi", "qcserial"
},
{ "sim7100", "option", "1e0e", "9001" },
Further if the module is identified as gobi, I am able to connect to the
internet. If it is identified as sim7100, the module gets disconnected and
connected again (reset) whenever I am trying to activate the context.
May I know what is the issue here and any idea on how to fix this issue will be
helpful.
Mit freundlichen Grüßen / Best regards
Vinothkumar Eswaran
BEG-PT/PJ-EL
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