Hi, I must correct me, modem type is LE910-EU1 as Reinhard assumed. Sorry for this confusion. As a workaround for testing, we send AT+WS46 commands via D-Bus, but that seems possible only, if MM runs in debug mode. If we need this feature for production in the future, I understand that we can add it to the Telit plugin. I'd be very happy, if you can support me during implementation at a later point in time.
Thank you Aleksander and Reinhard for your support. Carsten -----Ursprüngliche Nachricht----- Von: Aleksander Morgado [mailto:aleksan...@aleksander.es] Gesendet: Freitag, 22. Februar 2019 09:59 An: Reinhard Speyerer Cc: modemmanager-devel@lists.freedesktop.org; Stelling2 Carsten Betreff: Re: Set allowed mode to 2G, 3G, 4G not working > > > Within the debug output I found the following line > > > ModemManager[623]: <debug> [1550762368.321591] MBIM-powered Telit modem > > > found... > > > which points out, that calling > > > if (mm_port_probe_list_is_xmm (probes)) > > > did not find the XMM support. > > > > It didn't find it, because the XACT=? check failed: > > ModemManager[623]: <debug> [1550762359.960165] (ttyACM0): --> > > 'AT+XACT=?<CR>' > > ModemManager[623]: <debug> [1550762360.882668] (ttyACM0): <-- > > '<CR><LF>ERROR<CR><LF>' > > > > So I assume the XMM support that we have in the xmm plugin isn't ready > > to handle this specific device. > > > > The inability to switch modes in this device is not a bug, it's just > > not implemented I'm afraid. > > Hi Aleksander, > > the Telit-preferred way seems to be to handle this with AT+WS46. > I haven't checked the code in detail but based on the AT+WS46 > references in the Telit plugin I would have expected for > ModemManager to already use it. > If the modem is managed with MBIM, the generic MBIM implementation is used for the Telit modem, so no AT+WS46 based mode switching will be done. For this kind of cases, where we have MBIM for generic control plus AT for other features, we would need to have a "MMBroadbandModemMbimTelit" implementation that inherits from MMBroadbandModemMbim but then shares features with the Telit-specific AT modem object. So, it's totally possible to do this, but needs to be done. -- Aleksander https://aleksander.es _______________________________________________ ModemManager-devel mailing list ModemManager-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
