Could not acquire the 'org.freedesktop.ModemManager1' service name
Dan Williams
dcbw at redhat.com
Tue Mar 21 20:00:39 UTC 2017
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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