EM7345 probing fails when coming back from suspend

Aleksander Morgado aleksander at aleksander.es
Mon Jun 2 02:21:18 PDT 2014


Hey,

>> Can you retry with the attached patch? If you send me back again the
>> logs I'll be able to tell whether the bug is fixed or not.
>
> Attached.  Don't know if you can verify that this works whether or not
> we're hitting the akward timing?  I'll run MM for a while with this
> patch in any case and report back if it should fail again.
>

No timing issue in those logs, in this case wwan0 was notified before
the /dev/cdc-wdm0 (which is what we usually have), see:

> ModemManager[5581]: <debug> [1401695461.788618] [mm-plugin-manager.c:631] build_plugins_list(): (Plugin Manager) [wwan0] Found '1' plugins to try...
> ModemManager[5581]: <debug> [1401695461.788796] [mm-plugin-manager.c:635] build_plugins_list(): (Plugin Manager) [wwan0]   Will try with plugin 'Generic'
> ModemManager[5581]: <debug> [1401695461.788978] [mm-plugin.c:704] mm_plugin_supports_port(): (Generic) [wwan0] probing deferred until result suggested
....
> ModemManager[5581]: <debug> [1401695461.795835] [mm-plugin-manager.c:631] build_plugins_list(): (Plugin Manager) [cdc-wdm0] Found '1' plugins to try...
> ModemManager[5581]: <debug> [1401695461.796013] [mm-plugin-manager.c:635] build_plugins_list(): (Plugin Manager) [cdc-wdm0]   Will try with plugin 'Generic'
> ModemManager[5581]: <debug> [1401695461.796199] [mm-plugin.c:782] mm_plugin_supports_port(): (Generic) [cdc-wdm0] probe required: 'mbim'
....

To trigger the issue, wwan0 needs to be reported *after* cdc-wdm0 has
finished probing.

Did you retry after suspend/resume?

-- 
Aleksander
https://aleksander.es


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