Help on an invalid modem case

[Louis-Alexis Eyraud]

logs for the E3372h device.

Louis-Alexis
________________________________
From: Aleksander Morgado <aleksander at aleksander.es>
Sent: 06 July 2020 17:33
To: Louis-Alexis Eyraud <louis-alexis.eyraud at sigfox.com>
Cc: ModemManager (development) <modemmanager-devel at lists.freedesktop.org>
Subject: Re: Help on an invalid modem case

Hey,

>
> I tried the udev rules you suggest and the serial timeouts occurrences disappear for the device.
> Even if the attached log don't show it, the device got connected to the network after multiple attempts. The connection is stable and functional now (over half an hour when I'm writing this).
>

Good news, that confirms the assumptions then.

> I also tried with another 3G modem (Huawei 3372h-156) that has the same pid/vid after usbmode switch actions but it now shows serial timeouts too. It was not the case before.
>

Heh, I wouldn't be surprised. Can you post lsusb -v and MM debug logs
from that other device?
It could be that in this second device, the NCM interface goes in a
USB interface number higher than the AT ports, and so it needs
GETPORTMODE hints.

> For a remote access to a setup, I ask my company to retrieve this device next time I go to the office.
> So I would probably able to have a less custom and specific setup for test purposes in the coming days.
>

That would be nice, thanks.

--
Aleksander
https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Faleksander.es%2F&data=02%7C01%7Clouis-alexis.eyraud%40sigfox.com%7Caee408f503b44a8e6c5708d821c1f868%7Cfcbc8bb1061e4b949f703ad917b0c8d3%7C0%7C0%7C637296464272821310&sdata=wPreg0UK0wtu13CAgtJ0aZOq595L9ronij5kZhel4Us%3D&reserved=0
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