Initial signal quality query on MBIM modems

Ben Chan benchan at chromium.org
Mon Apr 23 23:41:47 UTC 2018


On Sat, Jan 6, 2018 at 9:58 AM Aleksander Morgado <aleksander at aleksander.es>
wrote:


> That idea looks good to me, yes. If that property is set, MM would
> just run one signal update query. You could reuse the same polling
> logic and just exit polling early as soon as the first successful poll
> happens.

> As for why QMI has both polling and unsolicited indications, I'm not
> sure, don't recall why that was done. Probably to handle devices which
> wouldn't report signal updates properly via indications or something,
> but not sure. The last similar thing I recall is the Netgear AC341U
> not properly reporting network-initiated disconnections via
> unsolicited messages, and we tag that one explicitly so that polling
> for connection status is performed.


Here're the patches:

https://lists.freedesktop.org/archives/modemmanager-devel/2018-April/006308.html
https://lists.freedesktop.org/archives/modemmanager-devel/2018-April/006309.html

Thanks,
Ben


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