<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> I "solved" the part with the exception with get_profile_index_3gpp(): When you fill in a index first into the struct, then you are able to read it out afterwards. Otherwise there is the exception which I think is ok, because the field "index" is not (yet) existing. <div class="moz-cite-prefix">Am 03.03.2025 um 10:34 schrieb Martin Maurer: </div> <blockquote type="cite" cite="mid:c4167582-5e5c-4e81-869d-21d84d45b753@mmeacs.de"> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> Hello, with start_network I am using set_profile_index_3gpp (and just currently for testing get_profile_index_3gpp). I am using Python code, it could be something Python related: For setting some fields, I have e.g. this code: NetworkParameters = Qmi.MessageWdsStartNetworkInput() NetworkParameters.set_ip_family_preference(Qmi.WdsIpFamily(IpFamily)) NetworkParameters.set_apn(APN) #Â NetworkParameters.set_profile_index_3gpp(0)Â Â Â Â Â Â Â // 0 ??? -> see below which prepares a struct NetworkParameters to be used with start_network. I assumed I just can use: mytestindex = NetworkParameters.get_profile_index_3gpp() but this gives me the following exception: Exception in module_change_cb callback: qmi_core_error_quark: Field 'Profile Index 3GPP' was not found in the message (5) Mentioned field 'Profile Index 3GPP' looks curious, field name with spaces inside? When looking at <a class="moz-txt-link-freetext" href="https://lazka.github.io/pgi-docs/Qmi-1.0/classes/MessageWdsStartNetworkInput.html#Qmi.MessageWdsStartNetworkInput.get_profile_index_3gpp" moz-do-not-send="true">https://lazka.github.io/pgi-docs/Qmi-1.0/classes/MessageWdsStartNetworkInput.html#Qmi.MessageWdsStartNetworkInput.get_profile_index_3gpp</a> it says: value_profile_index_3gpp a placeholder for the output #guint8, or <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.13)" moz-do-not-send="true"><code class="xref py py-obj docutils literal notranslate">None</code></a> if not required. What is this "None" for? When I call it, I want get it, otherwise I don't call it? Do I need to give something as input parameter? <a class="moz-txt-link-freetext" href="https://lazka.github.io/pgi-docs/Qmi-1.0/classes/MessageWdsStartNetworkInput.html#Qmi.MessageWdsStartNetworkInput.set_profile_index_3gpp" moz-do-not-send="true">https://lazka.github.io/pgi-docs/Qmi-1.0/classes/MessageWdsStartNetworkInput.html#Qmi.MessageWdsStartNetworkInput.set_profile_index_3gpp</a> tells me I can use value_profile_index_3gpp as input parameter. When e.g. using # qmicli -p -d /dev/cdc-wdm0 --wds-get-profile-list=3gpp Profile list retrieved: Â Â Â Â Â Â Â [1] 3gpp - Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â APN: 'internet.telekom' Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â APN type: 'default' Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â PDP type: 'ipv4-or-ipv6' Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â PDP context number: '1' Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Username: '' Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Password: '' Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Auth: 'none' Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â No roaming: 'no' Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â APN disabled: 'no' # I assume [1] corresponds to the above value_profile_index_3gpp. So minimum is 1, because list starts with [1]? But I tried value 0 is also accepted, no exception. Is value 0 something special, not documented, perhaps not using something from profile list? And when just using NetworkParameters = Qmi.MessageWdsStartNetworkInput() is then the value 0 the default value? Or 1? Or None? Undefined? My aim would (still) be to give all parameters needed for a connection completely in/via NetworkParameters, so set APN, PDP Type, ... in NetworkParameters and just use them. No side effects via profile list, which is perhaps updated by something else. But e.g. the PDP context number cannot be set via libqmi? This is "cid"? I was told cid=1 is used for an "initial attach". But howÂ to select if I want to use cid=1 or e.g. cid=2 or anything else. And must my used parameters fit to the parameters used to build up cid=1? And when conflicting: Call Failed? ( error: couldn't start network: QMI protocol error (14): 'CallFailed' ) Creating a connection is such a fundamental action. I could not understand that it makes so much problem on my side... I assume I am missing something important or using something which I shall not use or in a different way. Many many thanks for all your help! Best regards, Martin </blockquote> </body> </html>