On Fri, 2017-03-31 at 21:09 +0000, Jan Graczyk wrote: > Hello Dan, > > There is no problem with connecting to this modem (mini PCIe Quectel > UC20 modem module) from kermit and sending AT commands. However when > I issue the following commands: > > mmcli -m 0 --simple-disconnect > mmcli -m 0 --simple-connect="pin=1234,apn=internet" > > the ModemManager sends debug message "Failed to find primary AT port" > to Linux console. However if I will power down and power up the > development board the ModemManager starts running properly. The > problem only happen when I issue the above disconnect and then > connect command.
The UC20 should be using QMI, not AT ports. qmi_wwan support for the UC20 has been there since 2013. But to use it, you need to: 1) ensure qmi_wwan has been built for your kernel 2) ensure you build ModemManager with libqmi support (--with-qmi=yes) This will solve both your problems, most likely. Dan > Best Regards, > > Jan Graczyk > > -----Original Message----- > From: Dan Williams [mailto:d...@redhat.com] > Sent: Friday, March 31, 2017 1:51 PM > To: Jan Graczyk <j...@nytec.com>; modemmanager-devel@lists.freedeskto > p.org > Subject: Re: Failed to find primary AT port > > On Fri, 2017-03-31 at 20:35 +0000, Jan Graczyk wrote: > > Hello All, > > > > I have a problem with ModemManager failing to find primary AT port. > > Her is the ModemManager debug log: > > What kind of modem is this? > > Does it require a specific baud rate and/or serial settings? > > Can you talk to the modem with 'minicom' on that port when > ModemManager isn't running? > > Dan > > > root@linaro-alip:~# ModemManager --debug& [1] 1574 root@linaro-alip > > :~# > > ModemManager[1574]: <info> [1490989871.011911] [main.c:140] > > main(): > > ModemManager (version 1.4.0) starting in system bus... > > ModemManager[1574]: <debug> [1490989871.035558] [main.c:65] > > bus_acquired_cb(): Bus acquired, creating manager... > > ModemManager[1574]: <debug> [1490989871.047317] [mm-plugin- > > manager.c:852] load_plugins(): Looking for plugins in > > '/usr/lib/arm- > > linux-gnueabihf/ModemManager' > > ModemManager[1574]: <debug> [1490989871.049618] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Option' > > ModemManager[1574]: <debug> [1490989871.051062] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Novatel LTE' > > ModemManager[1574]: <debug> [1490989871.052389] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Linktop' > > ModemManager[1574]: <debug> [1490989871.053841] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Samsung' > > ModemManager[1574]: <debug> [1490989871.055357] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Sierra' > > ModemManager[1574]: <debug> [1490989871.056738] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Gobi' > > ModemManager[1574]: <debug> [1490989871.058087] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'X22X' > > ModemManager[1574]: <debug> [1490989871.059471] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'MTK' > > ModemManager[1574]: <debug> [1490989871.060811] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'AnyDATA' > > ModemManager[1574]: <debug> [1490989871.062214] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Pantech' > > ModemManager[1574]: <debug> [1490989871.063564] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Novatel' > > ModemManager[1574]: <debug> [1490989871.065070] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Nokia' > > ModemManager[1574]: <debug> [1490989871.066426] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Motorola' > > ModemManager[1574]: <debug> [1490989871.067906] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Huawei' > > ModemManager[1574]: <debug> [1490989871.069276] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'SimTech' > > ModemManager[1574]: <debug> [1490989871.070701] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Option High-Speed' > > ModemManager[1574]: <debug> [1490989871.072078] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Generic' > > ModemManager[1574]: <debug> [1490989871.073583] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Iridium' > > ModemManager[1574]: <debug> [1490989871.075071] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Altair LTE' > > ModemManager[1574]: <debug> [1490989871.076609] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Cinterion' > > ModemManager[1574]: <debug> [1490989871.078085] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Via CBP7' > > ModemManager[1574]: <debug> [1490989871.079495] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Telit' > > ModemManager[1574]: <debug> [1490989871.081009] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'ZTE' > > ModemManager[1574]: <debug> [1490989871.082448] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Wavecom' > > ModemManager[1574]: <debug> [1490989871.083927] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Longcheer' > > ModemManager[1574]: <debug> [1490989871.085477] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Nokia (Icera)' > > ModemManager[1574]: <debug> [1490989871.086972] [mm-plugin- > > manager.c:877] load_plugins(): Loaded plugin 'Ericsson MBM' > > ModemManager[1574]: <debug> [1490989871.087122] [mm-plugin- > > manager.c:902] load_plugins(): Successfully loaded 27 plugins > > ModemManager[1574]: <debug> [1490989871.094817] [main.c:87] > > name_acquired_cb(): Service name 'org.freedesktop.ModemManager1' > > was > > acquired > > ModemManager[1574]: <debug> [1490989871.095004] [mm-base- > > manager.c:479] mm_base_manager_start(): Starting automatic device > > scan... > > ModemManager[1574]: <debug> [1490989871.136373] [mm-base- > > manager.c:518] mm_base_manager_start(): Finished device scan... > > ModemManager[1574]: <debug> [1490989871.139387] [mm-base- > > manager.c:314] device_added(): (tty/ttymxc0): port's parent > > platform > > driver is not whitelisted > > ModemManager[1574]: <debug> [1490989871.142340] [mm-base- > > manager.c:314] device_added(): (tty/ttymxc1): port's parent > > platform > > driver is not whitelisted > > ModemManager[1574]: <debug> [1490989871.144381] [mm-plugin- > > manager.c:739] mm_plugin_manager_find_device_support(): (Plugin > > Manager) [/sys/devices/soc0/soc/2100000.aips-bus/21ec000.serial] > > Checking device support... > > ModemManager[1574]: <debug> [1490989871.145459] [mm-plugin.c:253] > > apply_pre_probing_filters(): (Option) [ttymxc2] filtered by drivers > > ModemManager[1574]: <debug> [1490989871.145571] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Novatel LTE) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.145635] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Linktop) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.145692] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Samsung) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.145746] [mm-plugin.c:253] > > apply_pre_probing_filters(): (Sierra) [ttymxc2] filtered by drivers > > ModemManager[1574]: <debug> [1490989871.145797] [mm-plugin.c:253] > > apply_pre_probing_filters(): (Gobi) [ttymxc2] filtered by drivers > > ModemManager[1574]: <debug> [1490989871.145848] [mm-plugin.c:326] > > apply_pre_probing_filters(): (X22X) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.478216] [mm-plugin.c:380] > > apply_pre_probing_filters(): (MTK) [ttymxc2] filtered by udev tags > > ModemManager[1574]: <debug> [1490989871.478455] [mm-plugin.c:326] > > apply_pre_probing_filters(): (AnyDATA) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.479092] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Pantech) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.479279] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Novatel) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.479434] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Motorola) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.479571] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Huawei) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.479697] [mm-plugin.c:326] > > apply_pre_probing_filters(): (SimTech) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.479819] [mm-plugin.c:253] > > apply_pre_probing_filters(): (Option High-Speed) [ttymxc2] filtered > > by > > drivers > > ModemManager[1574]: <debug> [1490989871.479946] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Altair LTE) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.480077] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Telit) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.480205] [mm-plugin.c:326] > > apply_pre_probing_filters(): (ZTE) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.480322] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Wavecom) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.480443] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Longcheer) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.480559] [mm-plugin.c:326] > > apply_pre_probing_filters(): (Nokia (Icera)) [ttymxc2] filtered by > > vendor/product IDs > > ModemManager[1574]: <debug> [1490989871.480698] [mm-plugin.c:380] > > apply_pre_probing_filters(): (Ericsson MBM) [ttymxc2] filtered by > > udev > > tags > > ModemManager[1574]: <debug> [1490989871.480902] [mm-plugin- > > manager.c:640] build_plugins_list(): (Plugin Manager) [ttymxc2] > > Found > > '5' plugins to try... > > ModemManager[1574]: <debug> [1490989871.481047] [mm-plugin- > > manager.c:644] build_plugins_list(): (Plugin Manager) > > [ttymxc2] Will > > try with plugin 'Nokia' > > ModemManager[1574]: <debug> [1490989871.481173] [mm-plugin- > > manager.c:644] build_plugins_list(): (Plugin Manager) > > [ttymxc2] Will > > try with plugin 'Iridium' > > ModemManager[1574]: <debug> [1490989871.481872] [mm-plugin- > > manager.c:644] build_plugins_list(): (Plugin Manager) > > [ttymxc2] Will > > try with plugin 'Cinterion' > > ModemManager[1574]: <debug> [1490989871.482025] [mm-plugin- > > manager.c:644] build_plugins_list(): (Plugin Manager) > > [ttymxc2] Will > > try with plugin 'Via CBP7' > > ModemManager[1574]: <debug> [1490989871.482152] [mm-plugin- > > manager.c:644] build_plugins_list(): (Plugin Manager) > > [ttymxc2] Will > > try with plugin 'Generic' > > ModemManager[1574]: <debug> [1490989871.482591] [mm-plugin.c:767] > > mm_plugin_supports_port(): (Nokia) [ttymxc2] probe required: 'at, > > at- > > vendor, at-icera' > > ModemManager[1574]: <debug> [1490989871.482841] [mm-port- > > probe.c:1353] mm_port_probe_run(): (tty/ttymxc2) launching port > > probing: 'at, at-vendor, at-icera' > > ModemManager[1574]: <debug> [1490989871.486040] [mm-base- > > manager.c:314] device_added(): (tty/ttymxc4): port's parent > > platform > > driver is not whitelisted > > ModemManager[1574]: <debug> [1490989871.504025] [mm-base- > > manager.c:314] device_added(): (net/can0): port's parent platform > > driver is not whitelisted > > ModemManager[1574]: <debug> [1490989871.507236] [mm-base- > > manager.c:314] device_added(): (net/can1): port's parent platform > > driver is not whitelisted > > ModemManager[1574]: <debug> [1490989871.510886] [mm-base- > > manager.c:314] device_added(): (net/eth0): port's parent platform > > driver is not whitelisted > > ModemManager[1574]: <debug> [1490989871.514518] [mm-base- > > manager.c:290] device_added(): (net/sit0): could not get port's > > parent > > device > > ModemManager[1574]: <debug> [1490989871.521405] [mm-port- > > serial.c:1099] mm_port_serial_open(): (ttymxc2) opening serial > > port... > > ModemManager[1574]: <debug> [1490989871.856299] [mm-port- > > serial.c:1237] mm_port_serial_open(): (ttymxc2) device open count > > is > > 1 (open) > > ModemManager[1574]: <debug> [1490989871.957590] [mm-port-serial- > > at.c:440] debug_log(): (ttymxc2): --> 'ATE1 E0<CR>' > > ModemManager[1574]: <debug> [1490989873.636689] [mm-plugin- > > manager.c:710] min_probing_timeout_cb(): (Plugin Manager) > > [/sys/devices/soc0/soc/2100000.aips-bus/21ec000.serial] Minimum > > probing time consumed > > ModemManager[1574]: <debug> [1490989875.637443] [mm-port-probe- > > at.c:43] mm_port_probe_response_processor_is_at(): Parsing AT got: > > 'Serial command timed out' > > ModemManager[1574]: <debug> [1490989875.638133] [mm-port-serial- > > at.c:440] debug_log(): (ttymxc2): --> 'ATE1 E0<CR>' > > ModemManager[1574]: <debug> [1490989879.638923] [mm-port-probe- > > at.c:43] mm_port_probe_response_processor_is_at(): Parsing AT got: > > 'Serial command timed out' > > ModemManager[1574]: <debug> [1490989879.639497] [mm-port-serial- > > at.c:440] debug_log(): (ttymxc2): --> 'ATE1 E0<CR>' > > ModemManager[1574]: <debug> [1490989883.639253] [mm-port-probe- > > at.c:43] mm_port_probe_response_processor_is_at(): Parsing AT got: > > 'Serial command timed out' > > ModemManager[1574]: <debug> [1490989883.639516] [mm-port- > > probe.c:162] > > mm_port_probe_set_result_at(): (tty/ttymxc2) port is not AT-capable > > ModemManager[1574]: <debug> [1490989883.640461] [mm-port- > > serial.c:1296] mm_port_serial_close(): (ttymxc2) device open count > > is > > 0 (close) > > ModemManager[1574]: <debug> [1490989883.640727] [mm-port- > > serial.c:1312] mm_port_serial_close(): (ttymxc2) closing serial > > port... > > ModemManager[1574]: <debug> [1490989883.645830] [mm-port- > > serial.c:1361] mm_port_serial_close(): (ttymxc2) serial port closed > > ModemManager[1574]: <debug> [1490989883.646114] [mm-port- > > serial.c:1415] port_serial_close_force(): (ttymxc2) forced to > > close > > port > > ModemManager[1574]: <debug> [1490989883.646476] [mm-plugin.c:429] > > apply_post_probing_filters(): (Nokia) [ttymxc2] filtered by vendor > > strings > > ModemManager[1574]: <debug> [1490989883.646948] [mm-plugin.c:767] > > mm_plugin_supports_port(): (Iridium) [ttymxc2] probe required: > > 'at, > > at-vendor, at-product' > > ModemManager[1574]: <debug> [1490989883.647379] [mm-plugin.c:454] > > apply_post_probing_filters(): (Iridium) [ttymxc2] filtered as no > > vendor/product strings given > > ModemManager[1574]: <debug> [1490989883.647833] [mm-plugin.c:767] > > mm_plugin_supports_port(): (Cinterion) [ttymxc2] probe required: > > 'at, > > at-vendor' > > ModemManager[1574]: <debug> [1490989883.648736] [mm-plugin.c:429] > > apply_post_probing_filters(): (Cinterion) [ttymxc2] filtered by > > vendor > > strings > > ModemManager[1574]: <debug> [1490989883.649090] [mm-plugin.c:767] > > mm_plugin_supports_port(): (Via CBP7) [ttymxc2] probe required: > > 'at, > > at-vendor, at-product' > > ModemManager[1574]: <debug> [1490989883.649355] [mm-plugin.c:454] > > apply_post_probing_filters(): (Via CBP7) [ttymxc2] filtered as no > > vendor/product strings given > > ModemManager[1574]: <debug> [1490989883.649649] [mm-plugin.c:767] > > mm_plugin_supports_port(): (Generic) [ttymxc2] probe required: > > 'at, > > qcdm' > > ModemManager[1574]: <debug> [1490989883.649820] [mm-port- > > probe.c:1353] mm_port_probe_run(): (tty/ttymxc2) launching port > > probing: 'qcdm' > > ModemManager[1574]: <debug> [1490989883.650022] [mm-port- > > probe.c:658] > > serial_probe_qcdm(): (tty/ttymxc2) probing QCDM... > > ModemManager[1574]: <debug> [1490989883.650447] [mm-port- > > serial.c:1099] mm_port_serial_open(): (ttymxc2) opening serial > > port... > > ModemManager[1574]: <debug> [1490989883.653133] [mm-port- > > serial.c:1237] mm_port_serial_open(): (ttymxc2) device open count > > is > > 1 (open) > > ModemManager[1574]: <debug> [1490989883.653706] [mm-port-serial- > > qcdm.c:201] debug_log(): (ttymxc2): --> 7e 00 78 f0 7e > > ModemManager[1574]: <debug> [1490989886.639025] [mm-port-serial- > > qcdm.c:201] debug_log(): (ttymxc2): --> 7e 00 78 f0 7e > > ModemManager[1574]: <debug> [1490989889.638630] [mm-port- > > probe.c:258] > > mm_port_probe_set_result_qcdm(): (tty/ttymxc2) port is not QCDM- > > capable > > ModemManager[1574]: <debug> [1490989889.639095] [mm-port- > > serial.c:1296] mm_port_serial_close(): (ttymxc2) device open count > > is > > 0 (close) > > ModemManager[1574]: <debug> [1490989889.639302] [mm-port- > > serial.c:1312] mm_port_serial_close(): (ttymxc2) closing serial > > port... > > ModemManager[1574]: <debug> [1490989889.645367] [mm-port- > > serial.c:1361] mm_port_serial_close(): (ttymxc2) serial port closed > > ModemManager[1574]: <debug> [1490989889.645594] [mm-port- > > serial.c:1415] port_serial_close_force(): (ttymxc2) forced to > > close > > port > > ModemManager[1574]: <debug> [1490989889.645964] [mm-plugin- > > manager.c:462] plugin_supports_port_ready(): (Plugin Manager) > > (Generic) [ttymxc2] found best plugin for port > > ModemManager[1574]: <debug> [1490989889.646272] [mm-plugin- > > manager.c:316] port_probe_context_finished(): (Plugin Manager) > > 'ttymxc2' port probe finished, last one in device > > ModemManager[1574]: <debug> [1490989889.646434] [mm-plugin- > > manager.c:138] find_device_support_context_complete_and_free(): > > (Plugin Manager) [/sys/devices/soc0/soc/2100000.aips- > > bus/21ec000.serial] device support check finished in '18.501746' > > seconds > > ModemManager[1574]: <info> [1490989889.646644] [mm-device.c:509] > > mm_device_create_modem(): Creating modem with plugin 'Generic' and > > '1' > > ports > > ModemManager[1574]: <warn> [1490989889.659576] [mm-plugin.c:905] > > mm_plugin_create_modem(): Could not grab port (tty/ttymxc2): > > 'Cannot > > add port 'tty/ttymxc2', unhandled serial type' > > ModemManager[1574]: <debug> [1490989889.660497] [mm-base- > > modem.c:1485] finalize(): Modem (Generic) > > '/sys/devices/soc0/soc/2100000.aips-bus/21ec000.serial' completely > > disposed > > ModemManager[1574]: <warn> [1490989889.660761] [mm-base- > > manager.c:158] find_device_support_ready(): Couldn't create modem > > for > > device at '/sys/devices/soc0/soc/2100000.aips-bus/21ec000.serial': > > Failed to find primary AT port > > > > Anyone has an idea why this is happening? I appreciate very much a > > help from you. > > > > Best Regards, > > > > Jan Graczyk > > > > _______________________________________________ > > ModemManager-devel mailing list > > ModemManager-devel@lists.freedesktop.org > > https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel > > _______________________________________________ > ModemManager-devel mailing list > ModemManager-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel _______________________________________________ ModemManager-devel mailing list ModemManager-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
