Hi! I'm a new Yocto user trying to develop a fork of Chirpstack's Gateway OS ( https://github.com/brocaar/chirpstack-gateway-os ) for Raspberry Pi based LoRaWAN gateways. Although I have successfully modified and added new recipes, I'm struggling with adding a USB cellular modem to my image.
I have a Huawei E303C USB modem and followed the instructions from the Embexus website ( https://embexus.com/2017/06/04/add-a-mobile-broadband-connectivity-to-embedded-linux/ ) with no success. It basically proposes using oFono + connman to create a network interface, but after running the instructed commands, I get this error: $ sudo /usr/lib/ofono/test/activate-context Error activating /huawei_0/context1: org.ofono.Error.NotImplemented: Implementation not provided As an additional step, I enabled roaming using the set-roaming-allowed script in the oFono tests directory. I made the kernel configuration in layers ( https://github.com/brocaar/chirpstack-gateway-os/tree/master/layers ) / targets ( https://github.com/brocaar/chirpstack-gateway-os/tree/master/layers/targets ) / meta-raspberrypi ( https://github.com/brocaar/chirpstack-gateway-os/tree/master/layers/targets/meta-raspberrypi ) / recipes-kernel ( https://github.com/brocaar/chirpstack-gateway-os/tree/master/layers/targets/meta-raspberrypi/recipes-kernel ) / linux ( https://github.com/brocaar/chirpstack-gateway-os/tree/master/layers/targets/meta-raspberrypi/recipes-kernel/linux ) /linux-raspberrypi_%.bbappend and the connman package conf iguration in meta ( https://github.com/brocaar/chirpstack-gateway-os/tree/master/meta ) / conf ( https://github.com/brocaar/chirpstack-gateway-os/tree/master/meta/conf ) / distro ( https://github.com/brocaar/chirpstack-gateway-os/tree/master/meta/conf/distro ) /chirpstack-gateway-os.conf. I considered installing NetworkManager from the OpenEmbedded layer. Still, it has a declared conflict with connman, which is used to set a WIFI AP, and I don't want to remove that feature. This is the output from the list-modems script: [ /huawei_0 ] Online = 1 Powered = 1 Lockdown = 0 Emergency = 0 Manufacturer = huawei Model = E303C Revision = 21.157.01.01.18 Serial = 867360018081349 SystemPath = /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3 Interfaces = org.ofono.CellBroadcast org.ofono.NetworkRegistration org.ofono.SupplementaryServices org.ofono.CallBarring org.ofono.CallSettings org.ofono.CallForwarding org.ofono.MessageWaiting org.ofono.ConnectionManager org.ofono.SmartMessaging org.ofono.PushNotification org.ofono.MessageManager org.ofono.RadioSettings org.ofono.Phonebook org.ofono.AudioSettings org.ofono.VoiceCallManager org.ofono.AllowedAccessPoints org.ofono.SimManager Features = cbs net ussd gprs sms rat sim Type = hardware [ org.ofono.CellBroadcast ] Powered = 0 Topics = 2,4,36,50,118,135,255,555,569 [ org.ofono.NetworkRegistration ] Status = roaming Mode = auto Technology = umts MobileCountryCode = 334 MobileNetworkCode = 020 Name = EMnify (Mx Telcel GSM) Strength = 41 [ org.ofono.SupplementaryServices ] State = idle [ org.ofono.CallBarring ] VoiceOutgoing = disabled VoiceIncoming = disabled [ org.ofono.CallSettings ] CallingLinePresentation = enabled CallingNamePresentation = unknown ConnectedLinePresentation = disabled ConnectedLineRestriction = unknown CalledLinePresentation = disabled CallingLineRestriction = off HideCallerId = default VoiceCallWaiting = disabled [ org.ofono.CallForwarding ] VoiceUnconditional = VoiceBusy = VoiceNoReply = VoiceNoReplyTimeout = 20 VoiceNotReachable = ForwardingFlagOnSim = 0 [ org.ofono.MessageWaiting ] VoicemailWaiting = 0 VoicemailMessageCount = 0 VoicemailMailboxNumber = [ org.ofono.ConnectionManager ] Attached = 1 Bearer = umts RoamingAllowed = 1 Powered = 1 Suspended = 0 [ org.ofono.SmartMessaging ] [ org.ofono.PushNotification ] [ org.ofono.MessageManager ] ServiceCenterAddress = +42379010570 UseDeliveryReports = 0 Bearer = cs-preferred Alphabet = default [ org.ofono.RadioSettings ] [ org.ofono.Phonebook ] [ org.ofono.AudioSettings ] Active = 0 [ org.ofono.VoiceCallManager ] EmergencyNumbers = 118 110 08 911 000 112 999 119 [ org.ofono.AllowedAccessPoints ] [ org.ofono.SimManager ] Present = 1 CardIdentifier = 89883030000055775206 SubscriberIdentity = 295050901033049 ServiceProviderName = EMnify FixedDialing = 0 BarredDialing = 0 MobileCountryCode = 295 MobileNetworkCode = 05 SubscriberNumbers = LockedPins = PreferredLanguages = de en PinRequired = none Retries = [pin = 3] [pin2 = 3] [puk = 10] [puk2 = 10] CardSlotCount = 1 ActiveCardSlot = 1
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