>The above sequence looks good to me; you start the GPS engine and you >also register for NMEA indications. After that, you should start >receiving NMEA traces in QMI LOC indications, but I assume you're not >receiving any? What MM and libqmi versions are you using?
Exact, I did a --location-enable-gps-nmea and --location-get and I don't get any NMEA traces. I'm currently using MM 1.12.8 and libqmi 1.24.8 on an arm environment. >If you google for "Telit QMI LM940" you'll probably find easily a QMI >reference from Telit, but unfortunately I don't think it has much >detail on the LOC service itself. Other than that, I don't think there >are public online references for QMI documents anywhere else. If you >find some, let us know! I'll surely share if I find something. I'll check for the LM940 documentation. Thanks! On Mon, Apr 27, 2020 at 10:23 AM Aleksander Morgado < aleksan...@aleksander.es> wrote: > Hey, > > > > > I didn't found information in Telit documentation about the GPS control > with QMI. I'll try to poke them directly. On the other side, I did enable > the gps with success using mmcli but didn't had any data location under the > --location-get command. > > Here is the log when I do the command mmcli -m 0 > --location-enable-gps-nmea if you ever see something unusual. > > > ---------------------------------------------------------------------------------- > > <debug> [1587919447.966940] Got QMI WDS event report > > <debug> [1587919448.098691] Setting up location sources: '3gpp-lac-ci, > gps-nmea' > > <debug> [1587919448.098791] Location '3gpp-lac-ci' gathering is already > enabled... > > <debug> [1587919448.098826] Location 'gps-raw' gathering is already > disabled... > > <debug> [1587919448.098855] Location 'agps-msa' gathering is already > disabled... > > <debug> [1587919448.098880] Location 'agps-msb' gathering is already > disabled... > > <debug> [1587919448.098901] Need to enable the following location > sources: 'gps-nmea' > > [/dev/cdc-wdm0] sent message... > > <<<<<< RAW: > > <<<<<< length = 38 > > <<<<<< data = > 01:25:00:00:10:03:00:03:00:22:00:19:00:13:04:00:E8:03:00:00:12:04:00:02:00:00:00:10:04:00:01:00:00:00:01:01:00:10 > > [/dev/cdc-wdm0] sent generic request (translated)... > > <<<<<< QMUX: > > <<<<<< length = 37 > > <<<<<< flags = 0x00 > > <<<<<< service = "loc" > > <<<<<< client = 3 > > <<<<<< QMI: > > <<<<<< flags = "none" > > <<<<<< transaction = 3 > > <<<<<< tlv_length = 25 > > <<<<<< message = "Start" (0x0022) > > <<<<<< TLV: > > <<<<<< type = "Minimum Interval between Position Reports" (0x13) > > <<<<<< length = 4 > > <<<<<< value = E8:03:00:00 > > <<<<<< translated = 1000 > > <<<<<< TLV: > > <<<<<< type = "Intermediate Report State" (0x12) > > <<<<<< length = 4 > > <<<<<< value = 02:00:00:00 > > <<<<<< translated = disable > > <<<<<< TLV: > > <<<<<< type = "Fix Recurrence Type" (0x10) > > <<<<<< length = 4 > > <<<<<< value = 01:00:00:00 > > <<<<<< translated = periodic-fixes > > <<<<<< TLV: > > <<<<<< type = "Session ID" (0x01) > > <<<<<< length = 1 > > <<<<<< value = 10 > > <<<<<< translated = 16 > > [/dev/cdc-wdm0] received message... > > <<<<<< RAW: > > <<<<<< length = 20 > > <<<<<< data = > 01:13:00:80:10:03:02:03:00:22:00:07:00:02:04:00:00:00:00:00 > > [/dev/cdc-wdm0] received generic response (translated)... > > <<<<<< QMUX: > > <<<<<< length = 19 > > <<<<<< flags = 0x80 > > <<<<<< service = "loc" > > <<<<<< client = 3 > > <<<<<< QMI: > > <<<<<< flags = "response" > > <<<<<< transaction = 3 > > <<<<<< tlv_length = 7 > > <<<<<< message = "Start" (0x0022) > > <<<<<< TLV: > > <<<<<< type = "Result" (0x02) > > <<<<<< length = 4 > > <<<<<< value = 00:00:00:00 > > <<<<<< translated = SUCCESS > > [/dev/cdc-wdm0] sent message... > > <<<<<< RAW: > > <<<<<< length = 24 > > <<<<<< data = > 01:17:00:00:10:03:00:04:00:21:00:0B:00:01:08:00:04:00:00:00:00:00:00:00 > > [/dev/cdc-wdm0] sent generic request (translated)... > > <<<<<< QMUX: > > <<<<<< length = 23 > > <<<<<< flags = 0x00 > > <<<<<< service = "loc" > > <<<<<< client = 3 > > <<<<<< QMI: > > <<<<<< flags = "none" > > <<<<<< transaction = 4 > > <<<<<< tlv_length = 11 > > <<<<<< message = "Register Events" (0x0021) > > <<<<<< TLV: > > <<<<<< type = "Event Registration Mask" (0x01) > > <<<<<< length = 8 > > <<<<<< value = 04:00:00:00:00:00:00:00 > > <<<<<< translated = nmea > > [/dev/cdc-wdm0] received message... > > <<<<<< RAW: > > <<<<<< length = 20 > > <<<<<< data = > 01:13:00:80:10:03:02:04:00:21:00:07:00:02:04:00:00:00:00:00 > > [/dev/cdc-wdm0] received generic response (translated)... > > <<<<<< QMUX: > > <<<<<< length = 19 > > <<<<<< flags = 0x80 > > <<<<<< service = "loc" > > <<<<<< client = 3 > > <<<<<< QMI: > > <<<<<< flags = "response" > > <<<<<< transaction = 4 > > <<<<<< tlv_length = 7 > > <<<<<< message = "Register Events" (0x0021) > > <<<<<< TLV: > > <<<<<< type = "Result" (0x02) > > <<<<<< length = 4 > > <<<<<< value = 00:00:00:00 > > <<<<<< translated = SUCCESS > > > ---------------------------------------------------------------------------------- > > > > The above sequence looks good to me; you start the GPS engine and you > also register for NMEA indications. After that, you should start > receiving NMEA traces in QMI LOC indications, but I assume you're not > receiving any? What MM and libqmi versions are you using? > > > By curiosity, do you know a good references for qmi protocol so I can > dig into it? > > > > If you google for "Telit QMI LM940" you'll probably find easily a QMI > reference from Telit, but unfortunately I don't think it has much > detail on the LOC service itself. Other than that, I don't think there > are public online references for QMI documents anywhere else. If you > find some, let us know! > > > -- > Aleksander > https://aleksander.es > -- *David Khouya*
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