<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">2014-04-29 11:41 GMT+02:00 Aleksander Morgado <<a href="mailto:aleksander@aleksander.es" target="_blank">aleksander@aleksander.es</a>>: <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div>On Tue, Apr 29, 2014 at 11:13 AM, Marius Kotsbak <<a href="mailto:marius@kotsbak.com" target="_blank">marius@kotsbak.com</a>> wrote: > Is there a way to use QMI to get the current frequency band in use, either > using the current libqmi or some yet unimplemented API? Or possibly using > MBIM? > > It would be interesting to see when the newly opened 800 MHz band for LTE is > in use. </div></div>QMI has "NAS Get RF Band Information", but there is no qmicli command for that one yet. There is also the "NAS Get System Selection Preference", which will tell you how the modem is configured (i.e. which frequency bands it's allowed to use), and that one has the qmicli --nas-get-system-selection-preference command already. You can update which frequency bands to use through "NAS Set System Selection Preference", but the qmicli counterpart doesn't play with frequency bands at all, only with access techs (e.g. lte, gsm, umts..). ModemManager uses "NAS Get System Selection Preference" to list the current bands (e.g. with mmcli -m 0); and I also implemented support for "NAS Get RF Band Information" in there, but only when compiled with --with-newest-qmi-commands. You can update the bands allowed to use (will use "NAS Set System Selection Preference" ) with mmcli --set-current-bands. </blockquote><div> </div><div>I tried building MM 1.2 with that option, but it (Sierra MC7710) then fails to connect. Relevant parts of the syslog: May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: <info> Modem for device at '/sys/devices/pci0000:00/0000:00:14.0/usb3/3-10' successfully created May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] Checking version info (10 retries)... May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] QMI Device supports 17 services: May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] ctl (1.5) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] wds (1.12) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] dms (1.7) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] nas (1.21) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] qos (1.3) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] wms (1.4) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] pds (1.10) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] auth (1.1) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] at (1.1) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] voice (2.1) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] cat2 (2.0) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] uim (1.4) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] pbm (1.4) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] sar (1.0) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] wda (1.0) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] cat (2.0) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] rms (1.0) May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] Setting network port data format... May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] Network port data format operation finished May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] Allocating new client ID... May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] Registered 'dms' (version 1.7) client with ID '4' May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] Allocating new client ID... May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] Registered 'nas' (version 1.21) client with ID '4' May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] Allocating new client ID... May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] Registered 'wms' (version 1.4) client with ID '4' May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] Allocating new client ID... May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: [/dev/cdc-wdm0] Registered 'pds' (version 1.10) client with ID '4' May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: <warn> (ttyUSB2): port attributes not fully set May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: <warn> couldn't load list of Own Numbers: 'Couldn't get MSISDN: QMI protocol error (16): 'NotProvisioned'' May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: <warn> couldn't load current Bands: 'Couldn't parse the list of current bands' May 5 21:27:41 marius-Precision-M4800 ModemManager[999]: <info> Modem: state changed (unknown -> disabled) May 5 21:27:41 marius-Precision-M4800 NetworkManager[1078]: <warn> (cdc-wdm0): failed to look up interface index May 5 21:27:41 marius-Precision-M4800 NetworkManager[1078]: <info> (cdc-wdm0): new Broadband device (driver: 'qcserial, qmi_wwan' ifindex: 0) May 5 21:27:41 marius-Precision-M4800 NetworkManager[1078]: <info> (cdc-wdm0): exported as /org/freedesktop/NetworkManager/Devices/3 May 5 21:27:41 marius-Precision-M4800 NetworkManager[1078]: <info> (cdc-wdm0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2] May 5 21:27:41 marius-Precision-M4800 NetworkManager[1078]: <info> (cdc-wdm0): deactivating device (reason 'managed') [2] May 5 21:27:41 marius-Precision-M4800 NetworkManager[1078]: <info> (cdc-wdm0): device state change: unavailable -> disconnected (reason 'none') [20 30 0] May 5 21:39:40 marius-Precision-M4800 NetworkManager[1078]: <info> Activation (cdc-wdm0) starting connection 'Telenor Default' May 5 21:39:40 marius-Precision-M4800 NetworkManager[1078]: <info> (cdc-wdm0): device state change: disconnected -> prepare (reason 'none') [30 40 0] May 5 21:39:40 marius-Precision-M4800 NetworkManager[1078]: <info> NetworkManager state is now CONNECTING May 5 21:39:40 marius-Precision-M4800 NetworkManager[1078]: <info> Activation (cdc-wdm0) Stage 1 of 5 (Device Prepare) scheduled... May 5 21:39:40 marius-Precision-M4800 NetworkManager[1078]: <info> Activation (cdc-wdm0) Stage 1 of 5 (Device Prepare) started... May 5 21:39:40 marius-Precision-M4800 NetworkManager[1078]: <info> Activation (cdc-wdm0) Stage 1 of 5 (Device Prepare) complete. May 5 21:39:40 marius-Precision-M4800 ModemManager[999]: <info> Simple connect started... May 5 21:39:40 marius-Precision-M4800 ModemManager[999]: <info> Simple connect state (4/8): Wait to get fully enabled May 5 21:39:40 marius-Precision-M4800 ModemManager[999]: <info> Simple connect state (5/8): Register May 5 21:40:41 marius-Precision-M4800 ModemManager[999]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (unknown -> idle) May 5 21:40:41 marius-Precision-M4800 NetworkManager[1078]: <warn> (cdc-wdm0) failed to connect modem: Network timeout May 5 21:40:41 marius-Precision-M4800 NetworkManager[1078]: <info> (cdc-wdm0): device state change: prepare -> failed (reason 'gsm-registration-timeout') [40 120 32] May 5 21:40:41 marius-Precision-M4800 NetworkManager[1078]: <info> NetworkManager state is now DISCONNECTED May 5 21:40:41 marius-Precision-M4800 NetworkManager[1078]: <warn> Activation (cdc-wdm0) failed for connection 'Telenor Default' May 5 21:40:41 marius-Precision-M4800 NetworkManager[1078]: <info> (cdc-wdm0): device state change: failed -> disconnected (reason 'none') [120 30 0] May 5 21:40:41 marius-Precision-M4800 NetworkManager[1078]: <info> (cdc-wdm0): deactivating device (reason 'none') [0] </div><div>I also see that the bands query fails too. Is this a known issue? I'm not sure if I have the latest firmware for the modem anymore. -- </div><div>Marius </div></div></div></div>