RE: serial 3G modem connection

["Andy Maginnis" <jam smru co uk>]

Dan, thanks for the info,

I am using 2 systems, one is Ubuntu running on a desktop PC and the other
a gumstix running an Angstrom distribution.

Is the whitelist something I can add to?

My standard Ubuntu Machine

Linux jokersPc 2.6.35-28-generic-pae #49-Ubuntu SMP Tue Mar 1 14:58:06 UTC 2011 i686 GNU/Linux
Module                  Size  Used by
ppp_deflate             3726  0 
zlib_deflate           19266  1 ppp_deflate
ppp_async               6778  1 
crc_ccitt               1351  1 ppp_async
binfmt_misc             6599  1 
parport_pc             26378  0 
ppdev                   5556  0 
snd_hda_codec_via      51755  1 
snd_hda_intel          22299  2 
snd_hda_codec          87552  2 snd_hda_codec_via,snd_hda_intel
snd_hwdep               5040  1 snd_hda_codec
snd_pcm                71603  2 snd_hda_intel,snd_hda_codec
snd_seq_midi            4588  0 
snd_rawmidi            17783  1 snd_seq_midi
snd_seq_midi_event      6047  1 snd_seq_midi
snd_seq                47174  2 snd_seq_midi,snd_seq_midi_event
snd_timer              19067  2 snd_pcm,snd_seq
snd_seq_device          5744  3 snd_seq_midi,snd_rawmidi,snd_seq
snd                    49038  13 snd_hda_codec_via,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
i915                  296139  3 
option                 13453  0 
usb_wwan                9953  1 option
drm_kms_helper         30200  1 i915
drm                   168732  3 i915,drm_kms_helper
i2c_algo_bit            5168  1 i915
lp                      7342  0 
video                  18712  1 i915
soundcore                880  1 snd
snd_page_alloc          7216  2 snd_hda_intel,snd_pcm
ftdi_sio               30070  1 
led_class               2633  0 
asus_atk0110           11423  0 
parport                31492  3 parport_pc,ppdev,lp
usbserial              33357  5 option,usb_wwan,ftdi_sio
output                  1883  1 video
joydev                  8767  0 
intel_agp              26926  2 i915
agpgart                32075  2 drm,intel_agp
psmouse                59033  0 
serio_raw               4022  0 
usbhid                 36978  0 
hid                    67742  1 usbhid
r8169                  36777  0 
mii                     4425  1 r8169

The Gumstix

Linux overo 2.6.32 #1 Sun Nov 21 16:22:56 GMT 2010 armv7l unknown
root@overo:~# lsmod
Module                  Size  Used by
ppp_deflate             4044  0 
bsd_comp                5013  0 
sha1_generic            1861  0 
ppp_mppe                6104  0 
ppp_async               6731  0 
ppp_generic            17037  4 ppp_deflate,bsd_comp,ppp_mppe,ppp_async
slhc                    5381  1 ppp_generic
dsplinkk              129945  4 
ipv6                  225222  10 
option                 15175  1 
usbserial              31694  3 option
ads7846                 8695  0




-----Original Message-----
From: Dan Williams [mailto:dcbw redhat com] 
Sent: 05 April 2011 03:45
To: Andy Maginnis
Cc: networkmanager-list gnome org
Subject: Re: serial 3G modem connection

On Thu, 2011-03-31 at 22:37 +0100, Andy Maginnis wrote:
> I have a 3G Telit modem with a USB and Serial connection. The usb
> connection
> works fine with network manager, but when I try and use the serial
> connection
> I see the following in the modem manager debug output
> 
> ** (modem-manager:7380): DEBUG: (tty/ttyS0): could not get port's parent
> device

ModemManager will ignore most platform serial ports since most modems
these days are USB, and we can't really autodetect platform serial
devices.  So there's a whitelist for platform serial ports.  What kind
of system do you have?  Can you reply with the output of "lsmod" which
might give us the kernel module that we can whitelist?

Dan

> The modem is attached to /dev/ttyS0 and I can get an internet connection
> using
> a manual pppd connection. It seems that my modem setting in NM are not
> valid for
> the modem when connected through the serial port.
> 
> How can I get this under networkManager control?
> 
> When I do run it manually I see the following output appear in the
> network/modem manager
> debug trace.
> 
> NetworkManager[7393]:    SCPlugin-Ifupdown: devices added (path:
> /sys/devices/virtual/net/ppp0, iface: ppp0)
> NetworkManager[7393]:    SCPlugin-Ifupdown: device added (path:
> /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration
> found.
> ** (modem-manager:7380): DEBUG: (net/ppp0): could not get port's parent
> device
> NetworkManager[7393]:    SCPlugin-Ifupdown: devices removed (path:
> /sys/devices/virtual/net/ppp0, iface: ppp0)
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