Thanks Aleksander for the reply. A small query, if a modem supports both DirectIP and QMI, which is the recommended mode?
AT-command-set is highly modem-specific, while QMI is a standard-protocol. So, if there are "n" modems supporting both DirectIP and QMI, they are guaranteed to expose identical QMI "APIs", while their AT "APIs" could potentially be different. Are my thoughts in line? On Mon, Aug 15, 2016 at 1:28 PM, Aleksander Morgado < aleksan...@aleksander.es> wrote: > On 13/08/16 03:24, Ajay Garg wrote: > > First of all, my requirement is to have network-connectivity via the > > modem; and have the ability to read SMSes and run AT-commands WITHOUT > > losing the network-connectivity. > > > > I guess mmcli would do the trick, as modem-manager now comes plugged > > in with qmi-daemon, while serializes all requests being sent to the > > modem-serial-port (thereby having just one process have access to the > > serial-port). > > > > So, assuming (please correct me if I am wrong) that I am correct with > > my above hypotheses, will the above architecture work for a modem in > > DirectIP-mode (I guess not, but please confirm/reject). > > If you're running in Direct IP mode, ModemManager will use AT commands > over a serial port AND a WWAN network interface for data. You will be > able to do SMS messaging and network connectivity at the same time, as > the serial port isn't used for connection. > > If you're running in QMI mode, you will also be able to do SMS messaging > and connectivity at the same time. Connection will go through the WWAN > network interface, and the SMS messaging commands via QMI and the > /dev/cdc-wdm port (not a TTY). > > -- > Aleksander > https://aleksander.es > -- Regards, Ajay
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