On Wed, Nov 12, 2014 at 12:51 PM, Aleksander Morgado <aleksander@xxxxxxxxxxxxx> wrote: > > On Tue, Nov 4, 2014 at 5:55 PM, Dan Williams <dcbw@xxxxxxxxxx> wrote: >> >> > The next mystery is what is network-manager doing in the background? >> > I have seen that modem-manager is invoked, but as said I would like to >> > understand the "internas" (means check the logs, turn on some >> > debugging kernel-space/user-space, etc.). >> >> NetworkManager uses ModemManager for all WWAN control, NM only handles >> the configuration storage and IP addressing parts of the setup. >> ModemManager handles modem hardware detection, capability detection, >> WWAN registration and setup, signal strength reporting, network >> connection initiation, and bearer IP addressing method determination. >> >> If you want more information from ModemManager, you can run "mmcli >> --help" or "mmcli --set-logging=debug". > > > That (mmcli) will only be available in ModemManager >= 1.x, BTW. And beware > of --set-logging=debug, as syslog may limit those if MM sends too many too > fast. In general I usually prefer to ask for --debug output just in case: > http://www.freedesktop.org/wiki/Software/ModemManager/Debugging/ > > I saw the reporter talk about Ubuntu Precise (12.04) and Trusty (14.04), so > only in the latter mmcli will be available (if I'm not mistaken). For > Precise, this Ubuntu page shows how to enable debug logs: > https://wiki.ubuntu.com/DebuggingModemmanager > Hi Aleksander, thanks for the web-links. IMHO both can be placed in the "usb-wwan-networking" documentation I have in mind. The fdo-weblink is distro-independant. Regards, - Sedat - -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
