Could not acquire the 'org.freedesktop.ModemManager1' service name
Jan Graczyk
JanG at nytec.com
Tue Mar 21 20:15:39 UTC 2017
Hello Dan,
Yes, I am able to talk to this modem through command:
kermit -l /dev/ttymxc2 -b 115200
set flow none
set carrier-watch off
connect
AT
OK
at+cops=?
+COPS: (1,"T-Mobile","T-Mobile","310260",2),(1,"AT&T","AT&T","310410",2),(1,"T-Mobile","T-Mobile","310260",0),,(0-4),(0-2)
OK
Best Regards,
Jan Graczyk
This email message may contain confidential and privileged information. Any unauthorized use is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message.
-----Original Message-----
From: Dan Williams [mailto:dcbw at redhat.com]
Sent: Tuesday, March 21, 2017 1:01 PM
To: Jan Graczyk <JanG at nytec.com>; Aleksander Morgado <aleksander at aleksander.es>
Cc: modemmanager-devel at lists.freedesktop.org
Subject: Re: Could not acquire the 'org.freedesktop.ModemManager1' service name
On Tue, 2017-03-21 at 19:56 +0000, Jan Graczyk wrote:
> Hello Dan,
>
> Here is the ModemManager debug logging with my recent udev rule
> added:
For whatever reason, ttymxc2 is not responding to AT commands. Are you able to talk to that port directly with minicom or something similar?
Dan
> root at linaro-alip:~# ModemManager --debug
> ModemManager[1623]: <info> [1490123697.480062] [main.c:140] main():
> ModemManager (version 1.4.0) starting in system bus...
> ModemManager[1623]: <debug> [1490123697.502634] [main.c:65]
> bus_acquired_cb(): Bus acquired, creating manager...
> ModemManager[1623]: <debug> [1490123697.520416] [mm-plugin-
> manager.c:852] load_plugins(): Looking for plugins in '/usr/lib/arm-
> linux-gnueabihf/ModemManager'
> ModemManager[1623]: <debug> [1490123697.522802] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Nokia (Icera)'
> ModemManager[1623]: <debug> [1490123697.524392] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'AnyDATA'
> ModemManager[1623]: <debug> [1490123697.525883] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Option'
> ModemManager[1623]: <debug> [1490123697.527330] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'X22X'
> ModemManager[1623]: <debug> [1490123697.528752] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Pantech'
> ModemManager[1623]: <debug> [1490123697.530279] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Iridium'
> ModemManager[1623]: <debug> [1490123697.531809] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Novatel'
> ModemManager[1623]: <debug> [1490123697.533273] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'MTK'
> ModemManager[1623]: <debug> [1490123697.534832] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Generic'
> ModemManager[1623]: <debug> [1490123697.536357] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Gobi'
> ModemManager[1623]: <debug> [1490123697.537969] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Huawei'
> ModemManager[1623]: <debug> [1490123697.539526] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Sierra'
> ModemManager[1623]: <debug> [1490123697.541052] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Option High-Speed'
> ModemManager[1623]: <debug> [1490123697.542537] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Motorola'
> ModemManager[1623]: <debug> [1490123697.544192] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Via CBP7'
> ModemManager[1623]: <debug> [1490123697.545752] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Samsung'
> ModemManager[1623]: <debug> [1490123697.547194] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'SimTech'
> ModemManager[1623]: <debug> [1490123697.548733] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Nokia'
> ModemManager[1623]: <debug> [1490123697.550220] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Wavecom'
> ModemManager[1623]: <debug> [1490123697.551770] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Novatel LTE'
> ModemManager[1623]: <debug> [1490123697.553265] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Longcheer'
> ModemManager[1623]: <debug> [1490123697.555024] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Cinterion'
> ModemManager[1623]: <debug> [1490123697.556584] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'ZTE'
> ModemManager[1623]: <debug> [1490123697.558134] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Linktop'
> ModemManager[1623]: <debug> [1490123697.559682] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Telit'
> ModemManager[1623]: <debug> [1490123697.561223] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Altair LTE'
> ModemManager[1623]: <debug> [1490123697.562785] [mm-plugin-
> manager.c:877] load_plugins(): Loaded plugin 'Ericsson MBM'
> ModemManager[1623]: <debug> [1490123697.562921] [mm-plugin-
> manager.c:902] load_plugins(): Successfully loaded 27 plugins
> ModemManager[1623]: <debug> [1490123697.571097] [main.c:87]
> name_acquired_cb(): Service name 'org.freedesktop.ModemManager1' was
> acquired
> ModemManager[1623]: <debug> [1490123697.571229] [mm-base-
> manager.c:479] mm_base_manager_start(): Starting automatic device
> scan...
> ModemManager[1623]: <debug> [1490123697.612974] [mm-base-
> manager.c:518] mm_base_manager_start(): Finished device scan...
> ModemManager[1623]: <debug> [1490123697.617866] [mm-base-
> manager.c:314] device_added(): (tty/ttymxc0): port's parent platform
> driver is not whitelisted
> ModemManager[1623]: <debug> [1490123697.620444] [mm-base-
> manager.c:314] device_added(): (tty/ttymxc1): port's parent platform
> driver is not whitelisted
> ModemManager[1623]: <debug> [1490123697.623656] [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[1623]: <debug> [1490123697.625380] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Nokia (Icera)) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.626617] [mm-plugin.c:326]
> apply_pre_probing_filters(): (AnyDATA) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.627761] [mm-plugin.c:253]
> apply_pre_probing_filters(): (Option) [ttymxc2] filtered by drivers
> ModemManager[1623]: <debug> [1490123697.628880] [mm-plugin.c:326]
> apply_pre_probing_filters(): (X22X) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.630003] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Pantech) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.630112] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Novatel) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.630181] [mm-plugin.c:380]
> apply_pre_probing_filters(): (MTK) [ttymxc2] filtered by udev tags
> ModemManager[1623]: <debug> [1490123697.630235] [mm-plugin.c:253]
> apply_pre_probing_filters(): (Gobi) [ttymxc2] filtered by drivers
> ModemManager[1623]: <debug> [1490123697.962271] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Huawei) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.962452] [mm-plugin.c:253]
> apply_pre_probing_filters(): (Sierra) [ttymxc2] filtered by drivers
> ModemManager[1623]: <debug> [1490123697.962576] [mm-plugin.c:253]
> apply_pre_probing_filters(): (Option High-Speed) [ttymxc2] filtered by
> drivers
> ModemManager[1623]: <debug> [1490123697.962690] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Motorola) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.962814] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Samsung) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.962926] [mm-plugin.c:326]
> apply_pre_probing_filters(): (SimTech) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.963053] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Wavecom) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.963164] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Novatel LTE) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.963272] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Longcheer) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.963392] [mm-plugin.c:326]
> apply_pre_probing_filters(): (ZTE) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.973741] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Linktop) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.973923] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Telit) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.974045] [mm-plugin.c:326]
> apply_pre_probing_filters(): (Altair LTE) [ttymxc2] filtered by
> vendor/product IDs
> ModemManager[1623]: <debug> [1490123697.974185] [mm-plugin.c:380]
> apply_pre_probing_filters(): (Ericsson MBM) [ttymxc2] filtered by udev
> tags
> ModemManager[1623]: <debug> [1490123697.974312] [mm-plugin-
> manager.c:640] build_plugins_list(): (Plugin Manager) [ttymxc2] Found
> '5' plugins to try...
> ModemManager[1623]: <debug> [1490123697.974424] [mm-plugin-
> manager.c:644] build_plugins_list(): (Plugin Manager) [ttymxc2] Will
> try with plugin 'Iridium'
> ModemManager[1623]: <debug> [1490123697.974533] [mm-plugin-
> manager.c:644] build_plugins_list(): (Plugin Manager) [ttymxc2] Will
> try with plugin 'Via CBP7'
> ModemManager[1623]: <debug> [1490123697.974639] [mm-plugin-
> manager.c:644] build_plugins_list(): (Plugin Manager) [ttymxc2] Will
> try with plugin 'Nokia'
> ModemManager[1623]: <debug> [1490123697.974749] [mm-plugin-
> manager.c:644] build_plugins_list(): (Plugin Manager) [ttymxc2] Will
> try with plugin 'Cinterion'
> ModemManager[1623]: <debug> [1490123697.974861] [mm-plugin-
> manager.c:644] build_plugins_list(): (Plugin Manager) [ttymxc2] Will
> try with plugin 'Generic'
> ModemManager[1623]: <debug> [1490123697.975255] [mm-plugin.c:767]
> mm_plugin_supports_port(): (Iridium) [ttymxc2] probe required: 'at,
> at-vendor, at-product'
> ModemManager[1623]: <debug> [1490123697.975464] [mm-port-
> probe.c:1353] mm_port_probe_run(): (tty/ttymxc2) launching port
> probing: 'at, at-vendor, at-product'
> ModemManager[1623]: <debug> [1490123697.977582] [mm-base-
> manager.c:314] device_added(): (tty/ttymxc4): port's parent platform
> driver is not whitelisted
> ModemManager[1623]: <debug> [1490123698.000339] [mm-base-
> manager.c:314] device_added(): (net/can0): port's parent platform
> driver is not whitelisted
> ModemManager[1623]: <debug> [1490123698.002695] [mm-base-
> manager.c:314] device_added(): (net/can1): port's parent platform
> driver is not whitelisted
> ModemManager[1623]: <debug> [1490123698.010639] [mm-base-
> manager.c:314] device_added(): (net/eth0): port's parent platform
> driver is not whitelisted
> ModemManager[1623]: <debug> [1490123698.013213] [mm-base-
> manager.c:290] device_added(): (net/sit0): could not get port's parent
> device
> ModemManager[1623]: <debug> [1490123698.016842] [mm-port-
> serial.c:1099] mm_port_serial_open(): (ttymxc2) opening serial port...
> ModemManager[1623]: <debug> [1490123698.025899] [mm-port-
> serial.c:1237] mm_port_serial_open(): (ttymxc2) device open count is
> 1 (open)
> ModemManager[1623]: <debug> [1490123698.126826] [mm-port-serial-
> at.c:440] debug_log(): (ttymxc2): --> 'AT<CR>'
> ModemManager[1623]: <debug> [1490123699.675043] [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[1623]: <debug> [1490123701.676723] [mm-port-probe-
> at.c:43] mm_port_probe_response_processor_is_at(): Parsing AT got:
> 'Serial command timed out'
> ModemManager[1623]: <debug> [1490123701.677231] [mm-port-serial-
> at.c:440] debug_log(): (ttymxc2): --> 'AT<CR>'
> ModemManager[1623]: <debug> [1490123704.677040] [mm-port-probe-
> at.c:43] mm_port_probe_response_processor_is_at(): Parsing AT got:
> 'Serial command timed out'
> ModemManager[1623]: <debug> [1490123704.677497] [mm-port-serial-
> at.c:440] debug_log(): (ttymxc2): --> 'AT<CR>'
> ModemManager[1623]: <debug> [1490123707.677319] [mm-port-probe-
> at.c:43] mm_port_probe_response_processor_is_at(): Parsing AT got:
> 'Serial command timed out'
> ModemManager[1623]: <debug> [1490123707.677559] [mm-port-probe.c:162]
> mm_port_probe_set_result_at(): (tty/ttymxc2) port is not AT-capable
> ModemManager[1623]: <debug> [1490123707.677913] [mm-port-
> serial.c:1296] mm_port_serial_close(): (ttymxc2) device open count is
> 0 (close)
> ModemManager[1623]: <debug> [1490123707.678076] [mm-port-
> serial.c:1312] mm_port_serial_close(): (ttymxc2) closing serial
> port...
> ModemManager[1623]: <debug> [1490123707.683943] [mm-port-
> serial.c:1361] mm_port_serial_close(): (ttymxc2) serial port closed
> ModemManager[1623]: <debug> [1490123707.684170] [mm-port-
> serial.c:1415] port_serial_close_force(): (ttymxc2) forced to close
> port
> ModemManager[1623]: <debug> [1490123707.684493] [mm-plugin.c:454]
> apply_post_probing_filters(): (Iridium) [ttymxc2] filtered as no
> vendor/product strings given
> ModemManager[1623]: <debug> [1490123707.684875] [mm-plugin.c:767]
> mm_plugin_supports_port(): (Via CBP7) [ttymxc2] probe required: 'at,
> at-vendor, at-product'
> ModemManager[1623]: <debug> [1490123707.685131] [mm-plugin.c:454]
> apply_post_probing_filters(): (Via CBP7) [ttymxc2] filtered as no
> vendor/product strings given
> ModemManager[1623]: <debug> [1490123707.685403] [mm-plugin.c:767]
> mm_plugin_supports_port(): (Nokia) [ttymxc2] probe required: 'at, at-
> vendor, at-icera'
> ModemManager[1623]: <debug> [1490123707.685617] [mm-plugin.c:429]
> apply_post_probing_filters(): (Nokia) [ttymxc2] filtered by vendor
> strings
> ModemManager[1623]: <debug> [1490123707.685870] [mm-plugin.c:767]
> mm_plugin_supports_port(): (Cinterion) [ttymxc2] probe required: 'at,
> at-vendor'
> ModemManager[1623]: <debug> [1490123707.686083] [mm-plugin.c:429]
> apply_post_probing_filters(): (Cinterion) [ttymxc2] filtered by vendor
> strings
> ModemManager[1623]: <debug> [1490123707.686324] [mm-plugin.c:767]
> mm_plugin_supports_port(): (Generic) [ttymxc2] probe required: 'at,
> qcdm'
> ModemManager[1623]: <debug> [1490123707.686467] [mm-port-
> probe.c:1353] mm_port_probe_run(): (tty/ttymxc2) launching port
> probing: 'qcdm'
> ModemManager[1623]: <debug> [1490123707.686652] [mm-port-probe.c:658]
> serial_probe_qcdm(): (tty/ttymxc2) probing QCDM...
> ModemManager[1623]: <debug> [1490123707.687009] [mm-port-
> serial.c:1099] mm_port_serial_open(): (ttymxc2) opening serial port...
> ModemManager[1623]: <debug> [1490123707.694811] [mm-port-
> serial.c:1237] mm_port_serial_open(): (ttymxc2) device open count is
> 1 (open)
> ModemManager[1623]: <debug> [1490123707.695221] [mm-port-serial-
> qcdm.c:201] debug_log(): (ttymxc2): --> 7e 00 78 f0 7e
> ModemManager[1623]: <debug> [1490123710.676988] [mm-port-serial-
> qcdm.c:201] debug_log(): (ttymxc2): --> 7e 00 78 f0 7e
> ModemManager[1623]: <debug> [1490123713.677471] [mm-port-probe.c:258]
> mm_port_probe_set_result_qcdm(): (tty/ttymxc2) port is not QCDM-
> capable
> ModemManager[1623]: <debug> [1490123713.677854] [mm-port-
> serial.c:1296] mm_port_serial_close(): (ttymxc2) device open count is
> 0 (close)
> ModemManager[1623]: <debug> [1490123713.678016] [mm-port-
> serial.c:1312] mm_port_serial_close(): (ttymxc2) closing serial
> port...
> ModemManager[1623]: <debug> [1490123713.683862] [mm-port-
> serial.c:1361] mm_port_serial_close(): (ttymxc2) serial port closed
> ModemManager[1623]: <debug> [1490123713.684128] [mm-port-
> serial.c:1415] port_serial_close_force(): (ttymxc2) forced to close
> port
> ModemManager[1623]: <debug> [1490123713.684485] [mm-plugin-
> manager.c:462] plugin_supports_port_ready(): (Plugin Manager)
> (Generic) [ttymxc2] found best plugin for port
> ModemManager[1623]: <debug> [1490123713.684810] [mm-plugin-
> manager.c:316] port_probe_context_finished(): (Plugin Manager)
> 'ttymxc2' port probe finished, last one in device
> ModemManager[1623]: <debug> [1490123713.685006] [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 '16.059923'
> seconds
> ModemManager[1623]: <info> [1490123713.685229] [mm-device.c:509]
> mm_device_create_modem(): Creating modem with plugin 'Generic' and '1'
> ports
> ModemManager[1623]: <warn> [1490123713.699372] [mm-plugin.c:905]
> mm_plugin_create_modem(): Could not grab port (tty/ttymxc2): 'Cannot
> add port 'tty/ttymxc2', unhandled serial type'
> ModemManager[1623]: <debug> [1490123713.699802] [mm-base-
> modem.c:1485] finalize(): Modem (Generic)
> '/sys/devices/soc0/soc/2100000.aips-bus/21ec000.serial' completely
> disposed
> ModemManager[1623]: <warn> [1490123713.700779] [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
>
> Best Regards,
> Jan Graczyk
>
>
> This email message may contain confidential and privileged
> information. Any unauthorized use is prohibited. If you are not the
> intended recipient, please contact the sender by reply email and
> destroy all copies of the original message.
>
>
> -----Original Message-----
> From: Dan Williams [mailto:dcbw at redhat.com]
> Sent: Tuesday, March 21, 2017 12:48 PM
> To: Jan Graczyk <JanG at nytec.com>; Aleksander Morgado <aleksander at alek
> sander.es>
> Cc: modemmanager-devel at lists.freedesktop.org
> Subject: Re: Could not acquire the 'org.freedesktop.ModemManager1'
> service name
>
> On Tue, 2017-03-21 at 19:46 +0000, Jan Graczyk wrote:
> > Hello Dan,
> >
> > I have got better result with that udev rule:
> >
> > ACTION=="add", KERNEL=="21ec000.serial",
> > ENV{ID_MM_PLATFORM_DRIVER_PROBE}="1"
> >
> > However mmcli -L still cannot find the modem. May be I need to add
> > the support for QUECTEL UC20 device inside ModemManager.
>
> Please provide ModemManager debug logging. We can't help figure out
> what's going on without it here.
>
> Dan
>
> > Best Regards,
> > Jan Graczyk
> >
> >
> > This email message may contain confidential and privileged
> > information. Any unauthorized use is prohibited. If you are not
> > the intended recipient, please contact the sender by reply email and
> > destroy all copies of the original message.
> >
> >
> > -----Original Message-----
> > From: Dan Williams [mailto:dcbw at redhat.com]
> > Sent: Tuesday, March 21, 2017 11:17 AM
> > To: Jan Graczyk <JanG at nytec.com>; Aleksander Morgado <aleksander at al
> > ek sander.es>
> > Cc: modemmanager-devel at lists.freedesktop.org
> > Subject: Re: Could not acquire the 'org.freedesktop.ModemManager1'
> > service name
> >
> > On Tue, 2017-03-21 at 17:30 +0000, Jan Graczyk wrote:
> > > Hello Dan,
> > >
> > > I have not noticed that I am getting an e-mail from you. I am
> > > sorry for that. Here is the output for the requested command:
> > >
> > > root at linaro-alip:~# udevadm info --attribute-walk
> > > /sys/class/tty/ttymxc2/
> > >
> > > Udevadm info starts with the device specified by the devpath and
> > > then walks up the chain of parent devices. It prints for every
> > > device found, all possible attributes in the udev rules key
> > > format.
> > > A rule to match, can be composed by the attributes of the device
> > > and the attributes from one single parent device.
> >
> > Ok, so it's not actually PCIe, at least according to the kernel
> > data.
> >
> > You want to whitelist the "imx-uart" driver. Add a file called
> > /etc/udev/rules.d/60-mm-imx-uart-whitelist.rules that contains:
> >
> > ACTION!="add|change|move", GOTO="mm_platform_device_whitelist_end"
> > SUBSYSTEM!="platform", GOTO="mm_platform_device_whitelist_end"
> > DRIVERS=="imx-uart", ENV{ID_MM_PLATFORM_DRIVER_PROBE}="1"
> > LABEL="mm_platform_device_whitelist_end"
> >
> > and then restart the machine. Does that work?
> >
> > Dan
> >
> > > looking at device '/devices/soc0/soc/2100000.aips-
> > > bus/21ec000.serial/tty/ttymxc2':
> > > KERNEL=="ttymxc2"
> > > SUBSYSTEM=="tty"
> > > DRIVER==""
> > > ATTR{close_delay}=="50"
> > > ATTR{closing_wait}=="3000"
> > > ATTR{custom_divisor}=="0"
> > > ATTR{flags}=="0x10000000"
> > > ATTR{io_type}=="2"
> > > ATTR{iomem_base}=="0x21EC000"
> > > ATTR{iomem_reg_shift}=="0"
> > > ATTR{irq}=="305"
> > > ATTR{line}=="2"
> > > ATTR{port}=="0x0"
> > > ATTR{type}=="62"
> > > ATTR{uartclk}=="80000000"
> > > ATTR{xmit_fifo_size}=="32"
> > >
> > > looking at parent device '/devices/soc0/soc/2100000.aips-
> > > bus/21ec000.serial':
> > > KERNELS=="21ec000.serial"
> > > SUBSYSTEMS=="platform"
> > > DRIVERS=="imx-uart"
> > > ATTRS{driver_override}=="(null)"
> > >
> > > looking at parent device '/devices/soc0/soc/2100000.aips-bus':
> > > KERNELS=="2100000.aips-bus"
> > > SUBSYSTEMS=="platform"
> > > DRIVERS==""
> > > ATTRS{driver_override}=="(null)"
> > >
> > > looking at parent device '/devices/soc0/soc':
> > > KERNELS=="soc"
> > > SUBSYSTEMS=="platform"
> > > DRIVERS==""
> > > ATTRS{driver_override}=="(null)"
> > >
> > > looking at parent device '/devices/soc0':
> > > KERNELS=="soc0"
> > > SUBSYSTEMS=="soc"
> > > DRIVERS==""
> > > ATTRS{family}=="Freescale i.MX"
> > > ATTRS{machine}=="Variscite i.MX6 DL/Solo SOM-SOLO SOM-DUAL"
> > > ATTRS{revision}=="1.3"
> > > ATTRS{soc_id}=="i.MX6DL"
> > >
> > > root at linaro-alip:~#
> > >
> > > Best Regards,
> > > Jan Graczyk
> > >
> > > This email message may contain confidential and privileged
> > > information. Any unauthorized use is prohibited. If you are not
> > > the intended recipient, please contact the sender by reply email
> > > and destroy all copies of the original message.
> > >
> > >
> > > -----Original Message-----
> > > From: Dan Williams [mailto:dcbw at redhat.com]
> > > Sent: Tuesday, March 21, 2017 10:21 AM
> > > To: Jan Graczyk <JanG at nytec.com>; Aleksander Morgado <aleksander@
> > > al ek sander.es>
> > > Cc: modemmanager-devel at lists.freedesktop.org
> > > Subject: Re: Could not acquire the 'org.freedesktop.ModemManager1'
> > > service name
> > >
> > > On Tue, 2017-03-21 at 16:59 +0000, Jan Graczyk wrote:
> > > > Hello Aleksander,
> > > >
> > > > The Queltec UC20 modem is sitting on my development board PCIe
> > > > bus.
> > > > When I issue the command udevadm info /dev/ttymxc2 I am getting
> > > > response:
> > >
> > > We care more about the parents though, so could you:
> > >
> > > udevadm info --attribute-walk /sys/class/tty/ttymxc2
> > >
> > > Dan
> > >
> > > > root at linaro-alip:~# udevadm info /dev/ttymxc2
> > > > P: /devices/soc0/soc/2100000.aips-
> > > > bus/21ec000.serial/tty/ttymxc2
> > > > N: ttymxc2
> > > > E: DEVNAME=/dev/ttymxc2
> > > > E: DEVPATH=/devices/soc0/soc/2100000.aips-
> > > > bus/21ec000.serial/tty/ttymxc2
> > > > E: ID_MM_CANDIDATE=1
> > > > E: MAJOR=207
> > > > E: MINOR=18
> > > > E: SUBSYSTEM=tty
> > > > E: TAGS=:systemd:
> > > > E: USEC_INITIALIZED=8343793
> > > >
> > > > root at linaro-alip:~#
> > > >
> > > > Also the command mmcli -L reports: No modems were found. Do I
> > > > need to create udev rule for this device? How the udev rule
> > > > should look like for this device? Also after connecting to modem
> > > > through Kermit I can issue AT command and see the mobile
> > > > networks.
> > > >
> > > > Best Regards,
> > > > Jan Graczyk
> > > >
> > > > This email message may contain confidential and privileged
> > > > information. Any unauthorized use is prohibited. If you are
> > > > not the intended recipient, please contact the sender by reply
> > > > email and destroy all copies of the original message.
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: Dan Williams [mailto:dcbw at redhat.com]
> > > > Sent: Tuesday, March 21, 2017 9:41 AM
> > > > To: Jan Graczyk <JanG at nytec.com>; Aleksander Morgado
> > > > <aleksander@ al ek sander.es>
> > > > Cc: modemmanager-devel at lists.freedesktop.org
> > > > Subject: Re: Could not acquire the
> > > > 'org.freedesktop.ModemManager1'
> > > > service name
> > > >
> > > > On Tue, 2017-03-21 at 16:33 +0000, Jan Graczyk wrote:
> > > > > Hello Aleksander,
> > > > >
> > > > > Thank you for your response. I have actually stopped running
> > > > > Modem Manger and then I have issued the command ModemManager
> > > > > --debug.
> > > > > This
> > > > > time the service name was acquired. However I have got another
> > > > > problem. The mm-base-manager.c:314 reports error device
> > > > > added():
> > > > > (tty/ttymxc2): port's parent platform driver is not
> > > > > whitelisted.
> > > > > Do
> > > > > you know the solution for this problem? Thank you for your
> > > > > support.
> > > >
> > > > What is the device hooked up to on the machine itself?
> > > > ModemManager does not usually auto-probe various platform
> > > > drivers, because it cannot know that a modem is connected as
> > > > these are not USB/PCI/etc and either do not provide device
> > > > identifiers, or the device is a generic serial adapter which
> > > > doesn't necessarily indicate a modem either (eg, it could have a
> > > > UPS attached or something).
> > > >
> > > > So generally for these devices, if you have one you know what
> > > > you are doing, and you can add a whitelist entry for it quite
> > > > easily with udev rules. But let's confirm the details first.
> > > >
> > > > Dan
> > > >
> > > > > Best Regards,
> > > > > Jan Graczyk
> > > > >
> > > > > This email message may contain confidential and privileged
> > > > > information. Any unauthorized use is prohibited. If you are
> > > > > not the intended recipient, please contact the sender by reply
> > > > > email and destroy all copies of the original message.
> > > > >
> > > > >
> > > > > -----Original Message-----
> > > > > From: Aleksander Morgado [mailto:aleksander at aleksander.es]
> > > > > Sent: Tuesday, March 21, 2017 2:15 AM
> > > > > To: Jan Graczyk <JanG at nytec.com>
> > > > > Cc: modemmanager-devel at lists.freedesktop.org
> > > > > Subject: Re: Could not acquire the
> > > > > 'org.freedesktop.ModemManager1'
> > > > > service name
> > > > >
> > > > > On Tue, Mar 21, 2017 at 12:55 AM, Jan Graczyk <JanG at nytec.com
> > > > > >
> > > > > wrote:
> > > > > >
> > > > > > I have installed Quectel UC20 modem on my development board
> > > > > > PCIe bus. The Linux modem device for Quectel UC20 modem is
> > > > > > showing up as /dev/ttymxc2. When I try to run mmcli -L or
> > > > > > ModemManager –debug the message “Could not acquire the
> > > > > > 'org.freedesktop.ModemManager1'
> > > > > > service name” is showing up. How to connect my Linux modem
> > > > > > device
> > > > > > /dev/ttymxc2 to ModemManger? I appreciate very much help
> > > > > > from you.
> > > > >
> > > > >
> > > > > Do you have the DBus daemon running in your system?
> > > > > ModemManager
> > > > > will grab the "org.freedesktop.ModemManager1" name in the
> > > > > system bus exposed by DBus; mmcli talks to ModemManager
> > > > > through that bus.
> > > > >
> > > > >
> > > > > --
> > > > > Aleksander
> > > > > https://aleksander.es
> > > > > _______________________________________________
> > > > > ModemManager-devel mailing list
> > > > > ModemManager-devel at lists.freedesktop.org
> > > > > https://lists.freedesktop.org/mailman/listinfo/modemmanager-d
> > > > > ev
> > > > > el
> >
> > _______________________________________________
> > ModemManager-devel mailing list
> > ModemManager-devel at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
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