[review] enable and use +CGEV indications
Hey all, See this MR, that allows us to enable and parse +CGEV indications to e.g. report context disconnections via URCs. https://gitlab.freedesktop.org/mobile-broadband/ModemManager/merge_requests/49 My target is to try to disable the periodic connection checks (AT+CGACT?) for all modems that support these indications, but first I'd like to integrate this and see how it behaves. Comments? Suggestions? -- Aleksander https://aleksander.es ___ ModemManager-devel mailing list ModemManager-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
Re: System Daemon or DBus activated service?
On Tue, 2018-10-30 at 12:42 +0100, Aleksander Morgado wrote: > Hey! > > > According to this[1], it says > > > ModemManager is a system daemon > > > > and > > > ModemManager is a DBus system bus activated service (meaning it's > > > started automatically when a request arrives). > > > > A system daemon means that MM is running all the time. Doesn't that > > conflict with DBus activated service? Besides, can ModemManager > > quit when let's say, it's not needed, just like what PackageKit > > does. Is it possible? > > > > *[1] https://www.freedesktop.org/software/ModemManager/api/latest/r > > ef-overview-introduction.html > > > > This depends on how the system works. In the pre-systemd setups MM > was > DBus-activated by NetworkManager on boot, but in all new setups using > systemd the ModemManager process is managed via a systemd service so > the lifecycle of the process is that of a system daemon. It would > probably be wise to stop talking about DBus activation for MM I > assume, we should update the docs. Yeah. Also in the pre-systemd world, NM needed to start MM very early to detect modems anyway. So it was effectively a system daemon, just that it wasn't started by a SYSV initscript or upstart job or whatever. The ideal system would be that MM would be started whenever certain hardware was inserted (or cold-detected), eg whenever any device driven by cdc-acm, qmi_wwan, cdc-mbim, cdc-wdm, sierra, qcserial, etc was found by the kernel. MM would run and if it found a modem would keep running, otherwise it would quit. But reality is that this is too complicated to get reliably correct, and clients (NetworkManager, mmcli, etc) can't distinguish between "MM couldn't find any modems and quit" and "MM wasn't started at all due to misconfiguration". Dan ___ ModemManager-devel mailing list ModemManager-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
Re: System Daemon or DBus activated service?
Hey! > According to this[1], it says > > ModemManager is a system daemon > and > > ModemManager is a DBus system bus activated service (meaning it's started > > automatically when a request arrives). > > A system daemon means that MM is running all the time. Doesn't that conflict > with DBus activated service? Besides, can ModemManager quit when let's say, > it's not needed, just like what PackageKit does. Is it possible? > > *[1] > https://www.freedesktop.org/software/ModemManager/api/latest/ref-overview-introduction.html > This depends on how the system works. In the pre-systemd setups MM was DBus-activated by NetworkManager on boot, but in all new setups using systemd the ModemManager process is managed via a systemd service so the lifecycle of the process is that of a system daemon. It would probably be wise to stop talking about DBus activation for MM I assume, we should update the docs. -- Aleksander https://aleksander.es ___ ModemManager-devel mailing list ModemManager-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
System Daemon or DBus activated service?
Hi list According to this[1], it says > ModemManager is a system daemon and > ModemManager is a DBus system bus activated service (meaning it's started automatically when a request arrives). A system daemon means that MM is running all the time. Doesn't that conflict with DBus activated service? Besides, can ModemManager quit when let's say, it's not needed, just like what PackageKit does. Is it possible? *[1] https://www.freedesktop.org/software/ModemManager/api/latest/ref-overview-introduction.html Thanks Jonathan ___ ModemManager-devel mailing list ModemManager-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
