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<p>Hello Aleksander, Dan<br>
<br>
It works perfect now again, thanks!<br>
I'm sorry that I totally forgot about this thread - but still
letting you know.<br>
</p>
<p>With kind regards,<br>
Lech<br>
</p>
<div class="moz-cite-prefix">W dniu 22.12.2024 o 19:13, Aleksander
Morgado pisze:<br>
</div>
<blockquote type="cite" cite="mid:CAA3JqEeWATn2MgAtqnUs1MgVD6bXpcJHMJb-W32LhxsUxU0KjQ@mail.gmail.com">
<div dir="ltr">
<div dir="ltr">Hey,<br>
</div>
<br>
<div class="gmail_quote gmail_quote_container">
<div dir="ltr" class="gmail_attr">On Sun, Dec 22, 2024 at
6:49 PM Aleksander Morgado <<a href="mailto:aleksander.morgado@gmail.com" moz-do-not-send="true" class="moz-txt-link-freetext">aleksander.morgado@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div dir="ltr"><br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sun, Dec 22, 2024
at 6:37 PM Aleksander Morgado <<a href="mailto:aleksander.morgado@gmail.com" target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">aleksander.morgado@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div dir="ltr">Hey,<br>
</div>
<div class="gmail_quote">
<div> </div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
> > After updating to the latest main (at
eda130f3bf1c), in our team<br>
> > we've noticed, that in our CI, that
QMI port sometimes fails to<br>
> > probe,<br>
> > with Telit LE910C4-WWXD. The result is
the modem having only AT<br>
> > ports<br>
> > available, thus falling back to using
PPP for the data connection.<br>
> <br>
> Well that's not awesome; I'll dig into it.
If you figure out anything<br>
> too, let me know.<br>
> <br>
<br>
When this happens, does MM attempt to probe the
port as AT before<br>
trying QMI?<br>
<br>
</blockquote>
<div><br>
</div>
<div>With the changes in that referenced commit,
it looks like serial_probe_step() may be running
serial_open_at() also for the QMI and MBIM
ports, which is not right, as that would create
a new MMSerialPort in ctx->serial.</div>
<div><br>
</div>
<div>The serial_probe_step() (ideally renamed as
probe_step() to make it clearer that it is not
serial-specific) should not run any
serial-specific operation (e.g. CUSTOM_INIT,
AT_OPEN_PORT, ....) for ports that do not
require any AT or QCDM probing.<br>
</div>
<div><br>
</div>
<div>WDYT?<br>
</div>
</div>
</div>
</blockquote>
<div><br>
</div>
<div>The issue can be reproduced with modems for which
the corresponding plugin has "custom_init" configured,
e.g. Telit or Cinterion:</div>
<div><br>
</div>
<div>ModemManager[4112]: <dbg> [1734889629.161510]
[cdc-wdm0/probe] no AT/QCDM/QMI probing in possible
MBIM port<br>
ModemManager[4112]: <dbg> [1734889629.162057]
[cdc-wdm0/probe] port is not AT-capable<br>
ModemManager[4112]: <dbg> [1734889629.162867]
[cdc-wdm0/probe] port is not QCDM-capable<br>
ModemManager[4112]: <dbg> [1734889629.163621]
[cdc-wdm0/probe] port is not QMI-capable<br>
ModemManager[4112]: <dbg> [1734889629.164981]
[cdc-wdm0/probe] launching port probing: 'mbim'<br>
ModemManager[4112]: <msg> [1734889629.166516]
[cdc-wdm0/probe] probe step: start<br>
ModemManager[4112]: <msg> [1734889629.166988]
[cdc-wdm0/probe] probe step: custom init open port
<br>
</div>
</div>
</div>
</blockquote>
<div><br>
</div>
<div>I tried to fix this with <a href="https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/merge_requests/1273" moz-do-not-send="true">https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/merge_requests/1273</a><br>
</div>
<div><br>
</div>
<div>Let us know if this solves the problem completely or not.<br>
</div>
</div>
</div>
<p class="MsoNormal" style="’line-height:12.0pt;font-size:10.0pt;color:#9C6500">___</p>
<p class="MsoNormal" style="’line-height:12.0pt;font-size:10.0pt;color:#9C6500">This
email originated from outside of Camlin Group. Do not click on
links or open attachments unless you are confident they are
secure. If in doubt, please raise a security incident via the
following portal: <a href="https://camlin-helpdesk.atlassian.net/servicedesk/customer/portal/2/group/34/create/62" moz-do-not-send="true">
Camlin Helpdesk – Report an Information Security
Incident/Non-Conformance </a></p>
</blockquote>
<pre class="moz-signature" cols="0">--
Pozdrawiam/With kind regards,
Lech Perczak
Sr. Software Engineer
Camlin Technologies Poland Limited Sp. z o.o.
Strzegomska 54,
53-611 Wroclaw
Tel: (+48) 71 75 000 16
Email: <a class="moz-txt-link-abbreviated" href="mailto:lech.perczak@camlingroup.com">lech.perczak@camlingroup.com</a>
Website: <a class="moz-txt-link-freetext" href="http://www.camlingroup.com">http://www.camlingroup.com</a></pre>
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