Re: ModemManager mmcli

[Dan Williams <dcbw redhat com>]

On Fri, 2017-05-19 at 12:47 -0600, Phil Daum wrote:
> Hi Dan,
>
> We are trying to operate GPS routing application using:  mmcli -m 0
> --location-get
>
> We are issuing the command once per second, and have noticed some
> failures
> where the command either fails or provides no data:

Can you run:

mmcli -G DEBUG

and then reproduce the problem?  That'll get debug logs which will be
much more useful.

Also, the output of 'mmcli -m 0' would be good when the problem
happens, so we can see what state it's in.  Feel free to XXXX out
sensitive stuff like your IMEI, phone #, etc.

Dan

> cr044# mmcli -m 0 --location-get
>
> /org/freedesktop/ModemManager1/Modem/0
>   -------------------------
>   3GPP location   | Mobile country code: '302'
>                   | Mobile network code: '610'
>                   |  Location area code: '11204'
>                   |             Cell ID: '79330668'
>   -------------------------
>   GPS NMEA traces | Not available
>   -------------------------
>   Raw GPS         | Not available
>   -------------------------
>   CDMA BS         | Not available
> cr044 [mmcli -m 0 --location-get] ~
>
> I've attached the journal and status and see there is quite a bit of
> activity involving several client ID's.  The status shows our attempt
> to
> restart the service via: systemctl restart ModemManager seems to give
> an
> error of:
>
> QMI protocol error (14): 'CallFailed'
>
> I was wondering if this is an acceptable way of obtaining this GPS
> info and
> if the attached logs give an obvious reason for our failure.
>
> Thanks in advance,
> Phil
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