Leveraging GPS in MC7700

Aleksander Morgado aleksander at aleksander.es
Mon Feb 6 16:28:35 UTC 2017

On Mon, Feb 6, 2017 at 5:19 PM, Adam Sherman <adam at sherman.ca> wrote:
> Sorry for the flood of emails! I'm trying to convey information as it
> comes along.
> On 2017-02-06 10:54 AM, Adam Sherman wrote:
>>> Output of mmcli shows ports: 'ttyUSB0 (qcdm), ttyUSB2 (at), cdc-wdm0
>>> (qmi), wwp0s20u4i8 (net)'.
>> After adding the udev rules, mmcli shows ports: 'ttyUSB0 (unknown),
>> ttyUSB1 (unknown), ttyUSB2 (unknown), cdc-wdm0 (qmi), wwp0s20u4i8
>> (net)'. Notable is the addition of ttyUSB1.
> At some point after adding the rule change, qmi-proxy seems to peg one
> of my cores basically forever. Is there a log I could look at to
> troubleshoot this?

Can you try to manually run the qmi-proxy?

$ sudo systemctl stop ModemManager
$ sudo killall qmi-proxy
$ sudo /usr/lib/libqmi/qmi-proxy --no-exit --verbose > /tmp/qmi-proxy.log 2>&1 &
$ sudo systemctl start ModemManager

(and retry, log should have gone to /tmp/qmi-proxy.log)


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