Martin Chaplet <[email protected]> writes: > Firstly, thank you for your previous patches which help me a lot.
And thank you for resurrecting it! > On 02/05/2016 22:24, Bjørn Mork wrote: >> Martin Chaplet <[email protected]> writes: >> >>> +# Sierra MC73xx (wwan0 is buggy, >> I suspect this is a raw-ip vs 802.3 issue. For example: wwan0 might be >> configured for raw-ip if firmware autoconnect is enabled. You should be >> able to detect this with a QMI_WDA "Get Data Format" request. >> >> In general, both interfaces 8 and 10 are usable on these modems. > > You are so right ! > > However, WDA service is not yet supported in qmimodem. > So I think we can keep the interface matching on QMI interface no 10 for > now because using interface 8 will imply changing its default link > layer at each boot. > > What's your opinion ? I believe there is no way around verifying the data format if you want this to be robust. The 'data format' setting does not depend on modem name or id or whatever. It is configurable, and defaulting to the last used value stored in NVRAM. This setting will therefore vary among identical modems, unless you force it yourself. Also note that there is no 802.3 support at all in the newer MC74xx series. A 'raw-ip' mode was therefore added to the qmi_wwan driver in Linux v4.5. It changes the interface type though, so userspace applications need to be aware. Which is also one reason this driver mode is never applied automatically - userspace must request it. IMHO, it would be nice if the oFono support was flexible enough to support all three generations Sierra Wireless QMI modems: MC77xx, MC73xx and MC74xx. But that's probably more suitable for a long term goal. Initially concentrating on the MC73xx support makes sense. FWIW, your approach looks fine to me. But I'm definitely no oFono expert :) Bjørn _______________________________________________ ofono mailing list [email protected] https://lists.ofono.org/mailman/listinfo/ofono
