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. 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.freedesktop.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
