Modem Manager bring up

[Aleksander Morgado]

Hey,

On Mon, Feb 28, 2022 at 4:31 AM Senthil Kumaresan
<sekumarejobs at gmail.com> wrote:
>
> In addition to that, the udevadm info is indicating that "/dev/wwan0qmi0 port is ID_MM_CANDIDATE=1 but the modem manager is still reporting that "Port wwan0qmi0 not a candidate".
>
> # udevadm info --query=all --name=wwan0qmi0
> P: /devices/platform/800b0000.pcie3/pci0003:00/0003:00:00.0/0003:01:00.0/mhi0/wwan/wwan0/wwan0qmi0
> N: wwan0qmi0
> E: UDEV_LOG=3
> E: DEVPATH=/devices/platform/800b0000.pcie3/pci0003:00/0003:00:00.0/0003:01:00.0/mhi0/wwan/wwan0/wwan0qmi0
> E: MAJOR=247
> E: MINOR=2
> E: DEVNAME=/dev/wwan0qmi0
> E: DEVTYPE=wwan_port
> E: ID_MM_CANDIDATE=1
> E: ID_MM_PORT_TYPE_QMI=1

I cannot explain why ModemManager doesn't see the udev tags, a bit of
a mistery. If the tags are there, and reported correctly by udevadm,
why does MM not see them?
Could you build and run the "lsudev" tool in the ModemManager sources
(under /test) and run it like this?
$ sudo ./lsudev wwan

Also, the log you posted is not from MM 1.18.4, it looks a modified
versin. I cannot find a reason to explain how this line is generated:
ModemManager[32336]: <debug> [000001804.593237] [filter] registered
plugin whitelist vendor id: 17cb
Can you test with 1.18.4 unmodified?

-- 
Aleksander
https://aleksander.es