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Serial device detection not working

Hi,
i had an active connection (latest MM_06 from git) with the iridium modem but after a while, the modem disconnected. After that, the modem was no longer detected by MM. 
Then i tried to redetect serial modems but without success.
dbus-send --system --type=method_call --print-reply --dest=org.freedesktop.ModemManager /org/freedesktop/ModemManager org.freedesktop.ModemManager.ScanDevices
modem-manager[4232]: <debug> [mm-manager.c:1057] mm_manager_start(): Starting device scan... modem-manager[4232]: <debug> [mm-manager.c:875] device_added(): (tty/ttyS0): port's parent platform driver is not whitelisted modem-manager[4232]: <debug> [mm-manager.c:875] device_added(): (tty/ttyS2): port's parent platform driver is not whitelisted modem-manager[4232]: <debug> [mm-manager.c:875] device_added(): (tty/ttyS4): port's parent platform driver is not whitelisted modem-manager[4232]: <debug> [mm-manager.c:875] device_added(): (net/usb0): port's parent platform driver is not whitelisted modem-manager[4232]: <debug> [mm-manager.c:1075] mm_manager_start(): Finished device scan... 


root@D110012:~# nmcli dev
DEVICE     TYPE              STATE
usb0       802-3-ethernet    unavailable
I also powered off/on the iridium modem, executed the dbus-command to rescan but the modem is still not detected. 

A MM restart worked for that:
~# kill `pidof modem-manager` && modem-manager --log-level=DEBUG everse-i-search)`kill': kill `pidof modem-manager` && modem-manager --log-level= modem-manager[4232]: <info> [main.c:41] mm_signal_handler(): Caught signal 15, shutting down... modem-manager[4232]: <info> [mm-modem.c:759] mm_modem_set_state(): Modem /org/freedesktop/ModemManager/Modems/1: state changed (registered -> disabling) modem-manager[4232]: mm_serial_port_close_force: assertion `priv->open_count > 0' failed modem-manager[4232]: <info> [mm-modem.c:759] mm_modem_set_state(): Modem /org/freedesktop/ModemManager/Modems/1: state changed (disabling -> disabled) modem-manager[4232]: <debug> [mm-manager.c:243] remove_modem(): Removed modem /sys/devices/platform/atmel_usart.1 modem-manager[5613]: <info> [main.c:167] main(): ModemManager (version 0.5.999) starting... modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Option' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'X22X' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Ericsson MBM' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Sierra' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Linktop' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'AnyData' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Longcheer' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Wavecom' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Novatel' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'SimTech' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Nokia' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Samsung' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Gobi' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Huawei' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'MotoC' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'ZTE' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Option High-Speed' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Cinterion' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Iridium' modem-manager[5613]: <info> [mm-manager.c:158] found_plugin(): Loaded plugin 'Generic' modem-manager[5613]: <info> [mm-manager.c:210] load_plugins(): Successfully loaded 20 plugins modem-manager[5613]: <debug> [mm-manager.c:1057] mm_manager_start(): Starting device scan... modem-manager[5613]: <debug> [mm-manager.c:875] device_added(): (tty/ttyS0): port's parent platform driver is not whitelisted modem-manager[5613]: <debug> [mm-manager.c:875] device_added(): (tty/ttyS2): port's parent platform driver is not whitelisted modem-manager[5613]: <debug> [mm-manager.c:875] device_added(): (tty/ttyS4): port's parent platform driver is not whitelisted modem-manager[5613]: <debug> [mm-manager.c:875] device_added(): (net/usb0): port's parent platform driver is not whitelisted modem-manager[5613]: <debug> [mm-manager.c:1075] mm_manager_start(): Finished device scan... modem-manager[5613]: <info> [mm-serial-port.c:805] mm_serial_port_open(): (ttyS1) opening serial port... modem-manager[5613]: <debug> [mm-serial-port.c:874] mm_serial_port_open(): (ttyS1) device open count is 1 (open) modem-manager[5613]: <debug> [mm-plugin-base.c:1050] try_open(): (ttyS1): probe requested by plugin 'Cinterion' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+GCAP<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- 'AT+GCAP<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>+GCAP:+CGSM,+DS,+WIRIDIUM<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CGMI<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- 'AT+CGMI' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>Iridium<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CGMM<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- 'AT+CGMM<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>9522B<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-serial-port.c:908] mm_serial_port_close(): (ttyS1) device open count is 0 (close) modem-manager[5613]: <info> [mm-serial-port.c:923] mm_serial_port_close(): (ttyS1) closing serial port... modem-manager[5613]: <info> [mm-serial-port.c:944] mm_serial_port_close(): (ttyS1) serial port closed modem-manager[5613]: <debug> [mm-plugin-iridium.c:90] check_vendor_iridium(): Iridium RS232 modem detected modem-manager[5613]: <debug> [mm-modem-base.c:927] grab_port(): (ttyS1) type AT claimed by /sys/devices/platform/atmel_usart.1 modem-manager[5613]: <info> [mm-manager.c:630] do_grab_port(): (Iridium): GSM modem /sys/devices/platform/atmel_usart.1 claimed port ttyS1 modem-manager[5613]: <debug> [mm-manager.c:362] add_modem(): Added modem /sys/devices/platform/atmel_usart.1 modem-manager[5613]: <debug> [mm-manager.c:298] check_export_modem(): (tty/ttyS1): outstanding support task prevents export of /sys/devices/platform/atmel_usart.1 modem-manager[5613]: <debug> [mm-modem-base.c:208] log_port(): (/sys/devices/platform/atmel_usart.1) tty/ttyS1 primary modem-manager[5613]: <debug> [mm-modem-base.c:208] log_port(): (/sys/devices/platform/atmel_usart.1) tty/ttyS1 data modem-manager[5613]: <info> [mm-serial-port.c:805] mm_serial_port_open(): (ttyS1) opening serial port... modem-manager[5613]: <debug> [mm-serial-port.c:874] mm_serial_port_open(): (ttyS1) device open count is 1 (open) modem-manager[5613]: <debug> [mm-serial-port.c:874] mm_serial_port_open(): (ttyS1) device open count is 2 (open) modem-manager[5613]: <debug> [mm-serial-port.c:874] mm_serial_port_open(): (ttyS1) device open count is 3 (open) modem-manager[5613]: <debug> [mm-serial-port.c:874] mm_serial_port_open(): (ttyS1) device open count is 4 (open) modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'ATE0<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- 'A' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- 'TE0<CR><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+GMI<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>Iridium<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+GMM<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>9522B<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+GMR<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>Call Processor Version: ST08005<CR><LF><CR><LF>DSP Version: 0x002b<CR><LF><CR><LF>ASIC Version: 32.1<CR><LF><CR><LF>NVM Version: S2_0003<CR><LF><CR><LF>BOOT Version: BOOT0bb8/HW13(H2dS2c)/02/RAW0a.02<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CGMI<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>Iridium<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CGMM<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>9522B<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CGMR<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>Call Processor Version: ST08005<CR><LF><CR><LF>DSP Version: 0x002b<CR><LF><CR><LF>ASIC Version: 32.1<CR><LF><CR><LF>NVM Version: S2_0003<CR><LF><CR><LF>BOOT Version: BOOT0bb8/HW13(H2dS2c)/02/RAW0a.02<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'ATI<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>2400<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'ATI1<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>0000<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+GSN<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>300025010008260<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CGSN<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>300025010008260<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-modem-helpers.c:1068] mm_create_device_identifier(): Device ID source '00001e2d0000000024000000300025010008260CallProcessorVersion:ST08005DSPVersion:0x002bASICVersion:32.1NVMVersion:S2_0003BOOTVersion:BOOT0bb8/HW13(H2dS2c)/02/RAW0a.029522BIridium' modem-manager[5613]: <debug> [mm-modem-helpers.c:1069] mm_create_device_identifier(): Device ID '3ec303ecfea2bac5805ed0d6401a7cb8ab7457cf' modem-manager[5613]: <debug> [mm-serial-port.c:908] mm_serial_port_close(): (ttyS1) device open count is 3 (close) modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'ATE0<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-serial-port.c:908] mm_serial_port_close(): (ttyS1) device open count is 2 (close) modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CMEE=1<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CPIN?<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>+CPIN:SIM PIN2<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-serial-port.c:874] mm_serial_port_open(): (ttyS1) device open count is 3 (open) modem-manager[5613]: <debug> [mm-manager.c:313] check_export_modem(): Exported modem /sys/devices/platform/atmel_usart.1 as /org/freedesktop/ModemManager/Modems/0 modem-manager[5613]: <debug> [mm-manager.c:327] check_export_modem(): (/org/freedesktop/ModemManager/Modems/0): VID 0x1E2D PID 0x0000 (platform) modem-manager[5613]: <debug> [mm-manager.c:328] check_export_modem(): (/org/freedesktop/ModemManager/Modems/0): data port is ttyS1 modem-manager[5613]: <debug> [mm-serial-port.c:908] mm_serial_port_close(): (ttyS1) device open count is 2 (close) modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CLCK=?<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<LF>+CLCK:("CS","SC","FD","AO","AI","IR","AB")<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-serial-port.c:874] mm_serial_port_open(): (ttyS1) device open count is 3 (open) modem-manager[5613]: <debug> [mm-serial-port.c:874] mm_serial_port_open(): (ttyS1) device open count is 4 (open) modem-manager[5613]: <debug> [mm-serial-port.c:908] mm_serial_port_close(): (ttyS1) device open count is 3 (close) modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CLCK=?<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>+CLCK:("CS","SC","FD","AO","AI","IR","AB")<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-serial-port.c:874] mm_serial_port_open(): (ttyS1) device open count is 4 (open) modem-manager[5613]: <debug> [mm-serial-port.c:874] mm_serial_port_open(): (ttyS1) device open count is 5 (open) modem-manager[5613]: <debug> [mm-serial-port.c:908] mm_serial_port_close(): (ttyS1) device open count is 4 (close) modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CLCK="SC",2<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>+CLCK:0<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-serial-port.c:908] mm_serial_port_close(): (ttyS1) device open count is 3 (close) modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CLCK="FD",2<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>+CLCK:0<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-serial-port.c:908] mm_serial_port_close(): (ttyS1) device open count is 2 (close) modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CLCK="SC",2<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>+CLCK:0<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-serial-port.c:908] mm_serial_port_close(): (ttyS1) device open count is 1 (close) modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): --> 'AT+CLCK="FD",2<CR>' modem-manager[5613]: <debug> [mm-at-serial-port.c:334] debug_log(): (ttyS1): <-- '<CR><LF>+CLCK:0<CR><LF><CR><LF>OK<CR><LF>' modem-manager[5613]: <debug> [mm-serial-port.c:908] mm_serial_port_close(): (ttyS1) device open count is 0 (close) modem-manager[5613]: <info> [mm-serial-port.c:923] mm_serial_port_close(): (ttyS1) closing serial port... modem-manager[5613]: <info> [mm-serial-port.c:944] mm_serial_port_close(): (ttyS1) serial port closed 




Cheers,

Tom
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