Re: nmcli c does not list modem device - part 2

[matti kaasinen]

Dan,
I managed feeding --with-modem-manager-1 option to configuration and now
modem started fine.

What comes to that usb_modeswitch problem: there I were not careful enough.
Both versions of this distribution had same usb_modeswitch version -
identical installation. So, most likely that problem is related to udev
installation that seems to be different.

Thanks a lot of your help
-Matti

2016-11-14 19:51 GMT+02:00 Dan Williams :

> On Mon, 2016-11-14 at 16:28 +0200, matti kaasinen wrote:
> > 2016-11-11 19:41 GMT+02:00 Dan Williams :
> >
> > >
> > > This should be handled by usb_modeswitch.  Either it's not getting
> > > run
> > > correctly from udev, or there's a bug in usb_modeswitch for your
> > > device.  The fact that you can run it manually probably means
> > > something
> > > udev related, probably the usb_modeswitch udev rules.
> > >
> > I studied this - and did not find proper reason/solution. However, it
> > is
> > clear that usb_modeswitch installation is different between
> > previous/current distribution versions. It seems that previous had
> > more
> > systemd stuff than current one (for instance systemd unit template).
> > I
> > tried to install that stuff manually, but it did not help. However, I
> > noticed that switching started working when I started "udevd monitor"
> > just
> > to get debugging information that I did not get before just enabling
> > logging in usb_modeswitch.conf file. Both logging and switching
> > worked
> > after starting udevd. I suppose I should contact to maintainers of
> > this
> > layer installing usb_modeswitch (meta-openembedded).
> >
> > >
> > >
> > > >
> > > > mmcli -L
> > > > does not see any modems before I run that command and naturally
> > > > nmcli c
> > > > does not see modems, too.
> > >
> > > Yeah, that makes sense; it's not switched yet.
> > >
> >
> > >
> > > >
> > > > Log shows that huawei driver proceeds fine after I run modeswitch
> > > > command
> > > > creating ttyUSB terminals. However, when old version produced
> > > > modem
> > > > (interface type 8) new MM produces generic interface (type 14).
> > > > NM
> > > > reports
> > > > regarding this new interface:
> > > > Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): 'wwan'
> > > > plugin
> > > > not available; creating generic device
> > > > Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): new
> > > > Generic
> > > > device (carrier: OFF, driver: 'huawei_cdc_ncm', ifindex: 3)
> > > > Nov 11 12:55:20 cpr3 NetworkManager[483]:   devices added
> > > > (path:
> > > > /sys/devices/platform/ocp/4740.usb/47401c00.usb/musb-
> > > > hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0,
> > > > iface: wwan0)
> > > > Nov 11 12:55:20 cpr3 NetworkManager[483]:   device added
> > > > (path:
> > > > /sys/devices/platform/ocp/4740.usb/47401c00.usb/musb-
> > > > hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0,
> > > > iface: wwan0): no ifupdown configuration found.
> > >
> > > What do you get for "cat /sys/class/net/wwan0/uevent"?  Do you see
> > > "DEVTYPE=wwan" in there?
> > >
> > Yes that I can see ( I don't remember now is this patched version or
> > not,
> > though)
> >
> > >
> > > If not, then the kernel driver should be
> > > fixed to tag this device as a WWAN device, and then NM will ignore
> > > the
> > > interface and wait for ModemManager to announce the modem.
> > >
> > > If you do see DEVTYPE=wwan, can you run NM with debug logging
> > > enabled
> > > (--log-level=debug) and see what it reports?
> > >
> > > Are you sure you have the NM WWAN plugin installed and recognized
> > > by
> > > NM?  It'll print out something at startup about it:
> > >
> >
> > >
> > > Loaded device plugin: NMWwanFactory
> > > (/usr/lib64/NetworkManager/libnm-
> > > device-plugin-wwan.so)
> > >
> > I'm pretty sure that it is not installed. In fact, I don't see this
> > plugin
> > built in the build directory. I tried study, what configuration
> > options I
> > needed to get it build, but really, I did not find any regarding
> > wwan.
> > Also, I did not find anything from documentation regarding wwan
> > plugin.
> > Would I need configuration option to get wwan pluging loaded (after
> > it gets
> > somehow built)?
>
> NM looks for device plugins in $LIBDIR/NetworkManager/.  If the plugin
> exists there NM will try to load it and report an error if it cannot.
>
> The NM build system will attempt to build the WWAN plugin if you either
> (a) have ModemManager libraries installed in a pkg-config-accessible
> path, or (b) if you pass --with-modem-manager-1 at configure time.
>
> Dan
>
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Re: nmcli c does not list modem device - part 2

[Dan Williams]

On Mon, 2016-11-14 at 16:28 +0200, matti kaasinen wrote:
> 2016-11-11 19:41 GMT+02:00 Dan Williams :
> 
> > 
> > This should be handled by usb_modeswitch.  Either it's not getting
> > run
> > correctly from udev, or there's a bug in usb_modeswitch for your
> > device.  The fact that you can run it manually probably means
> > something
> > udev related, probably the usb_modeswitch udev rules.
> > 
> I studied this - and did not find proper reason/solution. However, it
> is
> clear that usb_modeswitch installation is different between
> previous/current distribution versions. It seems that previous had
> more
> systemd stuff than current one (for instance systemd unit template).
> I
> tried to install that stuff manually, but it did not help. However, I
> noticed that switching started working when I started "udevd monitor"
> just
> to get debugging information that I did not get before just enabling
> logging in usb_modeswitch.conf file. Both logging and switching
> worked
> after starting udevd. I suppose I should contact to maintainers of
> this
> layer installing usb_modeswitch (meta-openembedded).
> 
> > 
> > 
> > > 
> > > mmcli -L
> > > does not see any modems before I run that command and naturally
> > > nmcli c
> > > does not see modems, too.
> > 
> > Yeah, that makes sense; it's not switched yet.
> > 
> 
> > 
> > > 
> > > Log shows that huawei driver proceeds fine after I run modeswitch
> > > command
> > > creating ttyUSB terminals. However, when old version produced
> > > modem
> > > (interface type 8) new MM produces generic interface (type 14).
> > > NM
> > > reports
> > > regarding this new interface:
> > > Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): 'wwan'
> > > plugin
> > > not available; creating generic device
> > > Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): new
> > > Generic
> > > device (carrier: OFF, driver: 'huawei_cdc_ncm', ifindex: 3)
> > > Nov 11 12:55:20 cpr3 NetworkManager[483]:   devices added
> > > (path:
> > > /sys/devices/platform/ocp/4740.usb/47401c00.usb/musb-
> > > hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0,
> > > iface: wwan0)
> > > Nov 11 12:55:20 cpr3 NetworkManager[483]:   device added
> > > (path:
> > > /sys/devices/platform/ocp/4740.usb/47401c00.usb/musb-
> > > hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0,
> > > iface: wwan0): no ifupdown configuration found.
> > 
> > What do you get for "cat /sys/class/net/wwan0/uevent"?  Do you see
> > "DEVTYPE=wwan" in there?
> > 
> Yes that I can see ( I don't remember now is this patched version or
> not,
> though)
> 
> > 
> > If not, then the kernel driver should be
> > fixed to tag this device as a WWAN device, and then NM will ignore
> > the
> > interface and wait for ModemManager to announce the modem.
> > 
> > If you do see DEVTYPE=wwan, can you run NM with debug logging
> > enabled
> > (--log-level=debug) and see what it reports?
> > 
> > Are you sure you have the NM WWAN plugin installed and recognized
> > by
> > NM?  It'll print out something at startup about it:
> > 
> 
> > 
> > Loaded device plugin: NMWwanFactory
> > (/usr/lib64/NetworkManager/libnm-
> > device-plugin-wwan.so)
> > 
> I'm pretty sure that it is not installed. In fact, I don't see this
> plugin
> built in the build directory. I tried study, what configuration
> options I
> needed to get it build, but really, I did not find any regarding
> wwan.
> Also, I did not find anything from documentation regarding wwan
> plugin.
> Would I need configuration option to get wwan pluging loaded (after
> it gets
> somehow built)?

NM looks for device plugins in $LIBDIR/NetworkManager/.  If the plugin
exists there NM will try to load it and report an error if it cannot.

The NM build system will attempt to build the WWAN plugin if you either
(a) have ModemManager libraries installed in a pkg-config-accessible
path, or (b) if you pass --with-modem-manager-1 at configure time.

Dan
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Re: nmcli c does not list modem device - part 2

[matti kaasinen]

2016-11-11 19:41 GMT+02:00 Dan Williams :

> This should be handled by usb_modeswitch.  Either it's not getting run
> correctly from udev, or there's a bug in usb_modeswitch for your
> device.  The fact that you can run it manually probably means something
> udev related, probably the usb_modeswitch udev rules.
>
I studied this - and did not find proper reason/solution. However, it is
clear that usb_modeswitch installation is different between
previous/current distribution versions. It seems that previous had more
systemd stuff than current one (for instance systemd unit template). I
tried to install that stuff manually, but it did not help. However, I
noticed that switching started working when I started "udevd monitor" just
to get debugging information that I did not get before just enabling
logging in usb_modeswitch.conf file. Both logging and switching worked
after starting udevd. I suppose I should contact to maintainers of this
layer installing usb_modeswitch (meta-openembedded).

>
> > mmcli -L
> > does not see any modems before I run that command and naturally
> > nmcli c
> > does not see modems, too.
>
> Yeah, that makes sense; it's not switched yet.
>

> > Log shows that huawei driver proceeds fine after I run modeswitch
> > command
> > creating ttyUSB terminals. However, when old version produced modem
> > (interface type 8) new MM produces generic interface (type 14). NM
> > reports
> > regarding this new interface:
> > Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): 'wwan'
> > plugin
> > not available; creating generic device
> > Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): new
> > Generic
> > device (carrier: OFF, driver: 'huawei_cdc_ncm', ifindex: 3)
> > Nov 11 12:55:20 cpr3 NetworkManager[483]:   devices added
> > (path:
> > /sys/devices/platform/ocp/4740.usb/47401c00.usb/musb-
> > hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0,
> > iface: wwan0)
> > Nov 11 12:55:20 cpr3 NetworkManager[483]:   device added (path:
> > /sys/devices/platform/ocp/4740.usb/47401c00.usb/musb-
> > hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0,
> > iface: wwan0): no ifupdown configuration found.
>
> What do you get for "cat /sys/class/net/wwan0/uevent"?  Do you see
> "DEVTYPE=wwan" in there?
>
Yes that I can see ( I don't remember now is this patched version or not,
though)

> If not, then the kernel driver should be
> fixed to tag this device as a WWAN device, and then NM will ignore the
> interface and wait for ModemManager to announce the modem.
>
> If you do see DEVTYPE=wwan, can you run NM with debug logging enabled
> (--log-level=debug) and see what it reports?
>
> Are you sure you have the NM WWAN plugin installed and recognized by
> NM?  It'll print out something at startup about it:
>

> Loaded device plugin: NMWwanFactory (/usr/lib64/NetworkManager/libnm-
> device-plugin-wwan.so)
>
I'm pretty sure that it is not installed. In fact, I don't see this plugin
built in the build directory. I tried study, what configuration options I
needed to get it build, but really, I did not find any regarding wwan.
Also, I did not find anything from documentation regarding wwan plugin.
Would I need configuration option to get wwan pluging loaded (after it gets
somehow built)?

>
> Dan
>
-Matti
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Re: nmcli c does not list modem device - part 2

[Dan Williams]

On Fri, 2016-11-11 at 15:22 +0200, matti kaasinen wrote:
> Hi (again)!
> 
> I discussed this problem originally in
> https://mail.gnome.org/archives/networkmanager-list/2016-March/msg000
> 79.html
> 
> I had to upgrade my set-up that is currently as follows:
> I am using Huawei 3131 modem whose ID should switch from 14fe to 1506
> Platform is yocto based am335x board running on Linux 4.4, NM version
> 1.0.10, MM version 1.4.12. I have tried to patch MM with commit
> number
> 359ec84671f9fc0869443b9f0b9555324a0fff78 to fix Huawei AT^NDISDUP
> problem
> but in fact I do not see any difference to opera the version without
> patching.
> 
> I changed from dhclient to internal dhcp client in order to get rid
> of IP
> address change immediately after boot. That seems working.
> 
> 
> Problems:
> 
> Modem mode does not change from Mass Storage/SD Storage to Modem.
> However, mode switches quite fine if I run manually command:
> usb_modeswitch -I -W -c /usr/share/usb_modeswitch/12d1\:14fe
> --default-vendor 12d1 --default-product 14fe --target-product 1506
> 
> I don't know, if this is something that modemmanager should bring for
> udev
> to make switching or should it come directly from usb_modeswitch set-
> up.
> Anyhow, that command uses the usb_modeswitch database.

This should be handled by usb_modeswitch.  Either it's not getting run
correctly from udev, or there's a bug in usb_modeswitch for your
device.  The fact that you can run it manually probably means something
udev related, probably the usb_modeswitch udev rules.

> mmcli -L
> does not see any modems before I run that command and naturally
> nmcli c
> does not see modems, too.

Yeah, that makes sense; it's not switched yet.

> Log shows that huawei driver proceeds fine after I run modeswitch
> command
> creating ttyUSB terminals. However, when old version produced modem
> (interface type 8) new MM produces generic interface (type 14). NM
> reports
> regarding this new interface:
> Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): 'wwan'
> plugin
> not available; creating generic device
> Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): new
> Generic
> device (carrier: OFF, driver: 'huawei_cdc_ncm', ifindex: 3)
> Nov 11 12:55:20 cpr3 NetworkManager[483]:   devices added
> (path:
> /sys/devices/platform/ocp/4740.usb/47401c00.usb/musb-
> hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0,
> iface: wwan0)
> Nov 11 12:55:20 cpr3 NetworkManager[483]:   device added (path:
> /sys/devices/platform/ocp/4740.usb/47401c00.usb/musb-
> hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0,
> iface: wwan0): no ifupdown configuration found.

What do you get for "cat /sys/class/net/wwan0/uevent"?  Do you see
"DEVTYPE=wwan" in there?  If not, then the kernel driver should be
fixed to tag this device as a WWAN device, and then NM will ignore the
interface and wait for ModemManager to announce the modem.

If you do see DEVTYPE=wwan, can you run NM with debug logging enabled
(--log-level=debug) and see what it reports?

Are you sure you have the NM WWAN plugin installed and recognized by
NM?  It'll print out something at startup about it:

Loaded device plugin: NMWwanFactory (/usr/lib64/NetworkManager/libnm-
device-plugin-wwan.so)

Dan

> Can anyone say how to proceed or is more profound debugging needed or
> any
> other information?
> 
> Thanks,
> Matti
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Re: nmcli c does not list modem device - part 2

[matti kaasinen]

Some more information:
nmcli d
DEVICE  TYPE  STATE  CONNECTION
eth0ethernet  connected  eth0
lo  loopback  unmanaged  --
wwan0   wwan  unmanaged  --


mmcli -m 0

/org/freedesktop/ModemManager1/Modem/0 (device id
'ec133b2df3dde8169aba5cddabc251e62f4601ec')
  -
  Hardware |   manufacturer: 'huawei'
   |  model: 'E3131'
   |   revision: '21.157.14.00.78'
   |  supported: 'gsm-umts'
   |current: 'gsm-umts'
   |   equipment id: '866715019103353'
  -
  System   | device:
'/sys/devices/platform/ocp/4740.usb/47401c00.usb/musb-hdrc.1.auto/usb2/2-1'
   |drivers: 'huawei_cdc_ncm, option1'
   | plugin: 'Huawei'
   |   primary port: 'ttyUSB2'
   |  ports: 'ttyUSB0 (at), ttyUSB2 (at), cdc-wdm0 (at),
wwan0 (net)'
  -
  Numbers  |   own : 'unknown'
  -
  Status   |   lock: 'none'
   | unlock retries: 'sim-pin (3), sim-pin2 (3), sim-puk (10),
sim-puk2 (10)'
   |  state: 'disabled'
   |power state: 'on'
   |access tech: 'unknown'
   | signal quality: '0' (cached)
  -
  Modes|  supported: 'allowed: 2g, 3g; preferred: none
   |  allowed: 2g, 3g; preferred: 2g
   |  allowed: 2g, 3g; preferred: 3g
   |  allowed: 2g; preferred: none
   |  allowed: 3g; preferred: none'
   |current: 'allowed: 2g, 3g; preferred: 3g'
  -
  Bands|  supported: 'unknown'
   |current: 'unknown'
  -
  IP   |  supported: 'ipv4, ipv6, ipv4v6'
  -
  3GPP |   imei: '866715019103353'
   |  enabled locks: 'none'
   |operator id: 'unknown'
   |  operator name: 'unknown'
   |   subscription: 'unknown'
   |   registration: 'unknown'
  -
  SIM  |   path: '/org/freedesktop/ModemManager1/SIM/0'

  -
  Bearers  |  paths: 'none'




2016-11-11 15:22 GMT+02:00 matti kaasinen :

> Hi (again)!
>
> I discussed this problem originally in https://mail.gnome.org/
> archives/networkmanager-list/2016-March/msg00079.html
>
> I had to upgrade my set-up that is currently as follows:
> I am using Huawei 3131 modem whose ID should switch from 14fe to 1506
> Platform is yocto based am335x board running on Linux 4.4, NM version
> 1.0.10, MM version 1.4.12. I have tried to patch MM with commit number
> 359ec84671f9fc0869443b9f0b9555324a0fff78 to fix Huawei AT^NDISDUP problem
> but in fact I do not see any difference to opera the version without
> patching.
>
> I changed from dhclient to internal dhcp client in order to get rid of IP
> address change immediately after boot. That seems working.
>
> 
> Problems:
> 
> Modem mode does not change from Mass Storage/SD Storage to Modem.
> However, mode switches quite fine if I run manually command:
> usb_modeswitch -I -W -c /usr/share/usb_modeswitch/12d1\:14fe
> --default-vendor 12d1 --default-product 14fe --target-product 1506
>
> I don't know, if this is something that modemmanager should bring for udev
> to make switching or should it come directly from usb_modeswitch set-up.
> Anyhow, that command uses the usb_modeswitch database.
>
> mmcli -L
> does not see any modems before I run that command and naturally
> nmcli c
> does not see modems, too.
>
> Log shows that huawei driver proceeds fine after I run modeswitch command
> creating ttyUSB terminals. However, when old version produced modem
> (interface type 8) new MM produces generic interface (type 14). NM reports
> regarding this new interface:
> Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): 'wwan' plugin
> not available; creating generic device
> Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): new Generic
> device (carrier: OFF, driver: 'huawei_cdc_ncm', ifindex: 3)
> Nov 11 12:55:20 cpr3 NetworkManager[483]:   devices added (path:
> /sys/devices/platform/ocp/4740.usb/47401c00.usb/
> musb-hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0, iface: wwan0)
> Nov 11 12:55:20 cpr3 NetworkManager[483]:   device added (path:
> /sys/devices/platform/ocp/4740.usb/47401c00.usb/
> musb-hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0, iface: wwan0): no ifupdown
> configuration found.
>
> Can anyone say how to proceed or is more profound debugging needed or any
> other information?
>
> Thanks,
> Matti
>
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nmcli c does not list modem device - part 2

[matti kaasinen]

Hi (again)!

I discussed this problem originally in
https://mail.gnome.org/archives/networkmanager-list/2016-March/msg00079.html

I had to upgrade my set-up that is currently as follows:
I am using Huawei 3131 modem whose ID should switch from 14fe to 1506
Platform is yocto based am335x board running on Linux 4.4, NM version
1.0.10, MM version 1.4.12. I have tried to patch MM with commit number
359ec84671f9fc0869443b9f0b9555324a0fff78 to fix Huawei AT^NDISDUP problem
but in fact I do not see any difference to opera the version without
patching.

I changed from dhclient to internal dhcp client in order to get rid of IP
address change immediately after boot. That seems working.


Problems:

Modem mode does not change from Mass Storage/SD Storage to Modem.
However, mode switches quite fine if I run manually command:
usb_modeswitch -I -W -c /usr/share/usb_modeswitch/12d1\:14fe
--default-vendor 12d1 --default-product 14fe --target-product 1506

I don't know, if this is something that modemmanager should bring for udev
to make switching or should it come directly from usb_modeswitch set-up.
Anyhow, that command uses the usb_modeswitch database.

mmcli -L
does not see any modems before I run that command and naturally
nmcli c
does not see modems, too.

Log shows that huawei driver proceeds fine after I run modeswitch command
creating ttyUSB terminals. However, when old version produced modem
(interface type 8) new MM produces generic interface (type 14). NM reports
regarding this new interface:
Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): 'wwan' plugin
not available; creating generic device
Nov 11 12:55:20 cpr3 NetworkManager[483]:   (wwan0): new Generic
device (carrier: OFF, driver: 'huawei_cdc_ncm', ifindex: 3)
Nov 11 12:55:20 cpr3 NetworkManager[483]:   devices added (path:
/sys/devices/platform/ocp/4740.usb/47401c00.usb/musb-hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0,
iface: wwan0)
Nov 11 12:55:20 cpr3 NetworkManager[483]:   device added (path:
/sys/devices/platform/ocp/4740.usb/47401c00.usb/musb-hdrc.1.auto/usb2/2-1/2-1:1.1/net/wwan0,
iface: wwan0): no ifupdown configuration found.

Can anyone say how to proceed or is more profound debugging needed or any
other information?

Thanks,
Matti
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