Hi Bjørn, On Wed, Mar 06, 2013 at 10:43:27AM +0100, Bjørn Mork wrote: > Forest Bond <[email protected]> writes: > > On Tue, Mar 05, 2013 at 10:45:15PM +0100, Bjørn Mork wrote: > >> Forest Bond <[email protected]> writes: > >> > >> > Anyway, I notice that one of the ports appears to be QCDM. It appears > >> > that QCDM > >> > support is partially implemented in oFono? But I don't know QCDM at > >> > all. Can > >> > we use it to do netreg? > >> > >> What kind of Sierra device is this? And what vid is it using? > > > > Well, I'm really after a few devices: > > > > * Sierra Wireless USB 598 (Sprint/Telus branded) > > * Sierra Wireless MC5728V (Feeney Wireless Skyus 3G) > > > > The 598 has VID 0025. I think the Skyus 3G does, too (at least in some > > configurations), but I don't have one in front of me to check. In any case > > it > > is a very similar part to the 598. All I have to test with right now is a > > Telus > > demo device (with no service :/) as my other parts were returned to their > > respective owners some time ago. > > > >> I ask because I have only seen QCDM ports active on Sierra devices > >> in firmware modes with rmnet/qmi_wwan interfaces. In which case you > >> should have QMI support. > > > > I couldn't get qmicli to do anything with any of the ports, but test-qcdm > > (from > > the ModemManager source tree) seems to like talking to the last port. > > > >> > If not, I could probably implement (partial) CnS support at some point. > >> > I'm > >> > just not sure I will have time to do it right away. > >> > >> And those modes do not have any CnS ports. > > > > These parts definitely have CnS ports. We've used CnS for an unrelated > > project > > with all of these devices. > > > > In all, I think the ports are as follows: > > > > 1. AT commands > > 2. CnS > > 3. NMEA 0183 (GPS) > > 4. QCDM > > > > WRT #3, I remember seeing what looked like NMEA a while back using a Sprint > > part. WRT #4 I've only ever tested the Telus part. > > > > What do you think? > > Thanks. I think you are right. Learning something new every day. > Until know I thought they had a clear split between "Qualcomm" and > "Sierra" protocols, but these devices obviously do a mix. Is the NMEA > port Sierra style (enabled using the SetNmea control message) or > Qualcomm style (enabled by writing "$GPS_START" to the port)?
Sierra style. Passing nmea=1 to the sierra kernel module enables it. Thanks, Forest -- Forest Bond http://www.alittletooquiet.net http://www.rapidrollout.com
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