[Bug 446146] Re: Several Huawei USB dongle don't work with kernel 2.6.31-12.40 (2.6.31.1 update related)

[Michael Rüttgers]

@Jose:
After some further investigation, I now have a working E1762-Modem using kernel 2.6.31-16-server (Karmic).

This seems to work without using the quirks-parameter for me. 
Maybe udev calls usb_modeswitch early enough to be able to switch the device into proper mode, but I'm not sure about this.

I performed the following steps:

1.) Add some modem specific settings to /etc/usb_modeswitch.conf
(Install the package usb_modeswitch before, if not already done):

#HUAWEI E1762
DefaultVendor= 0x12d1
DefaultProduct= 0x1446
TargetVendor= 0x12d1
TargetProduct= 0x140c
MessageContent="55534243000000000000000000000011060000000000000000000000000000"
CheckSuccess=5

2.) Create a file /etc/udev/rules.d/15-huawei-e1762.rules with the
following content:

SUBSYSTEM="usb"
SYSFS{idProduct}=="1446",
SYSFS{idVendor}=="12d1",
RUN+="/usr/sbin/usb_modeswitch"

-----------

These two steps made the modem basically working for me, and you should
get something like the following in your kernel log after restarting
udev and plugging in your Huawei stick, if it works for you, too:

kernel: [   78.175152] USB Serial support registered for GSM modem (1-port)
kernel: [   78.175198] option 1-1.4:1.0: GSM modem (1-port) converter detected
kernel: [   78.175272] usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB0
kernel: [   78.175279] option 1-1.4:1.1: GSM modem (1-port) converter detected
kernel: [   78.175319] usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB1
kernel: [   78.175326] option 1-1.4:1.2: GSM modem (1-port) converter detected


Then I got another problem with the modemmanger resulting in the following looping messages (/var/log/daemon.log):

modem-manager: (Huawei): (ttyUSB1) deferring support check
modem-manager: (ttyUSB2): re-checking support...
modem-manager: (Huawei): (ttyUSB2) deferring support check
modem-manager: (ttyUSB3): re-checking support...
modem-manager: (Huawei): (ttyUSB3) deferring support check
...

This seems to be caused by a bug reported here:
https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/410634

The solution was to use the network-manager and modemmanager packages build from trunk:
https://edge.launchpad.net/~network-manager/+archive/trunk

-----------

Now I was able to use the stick in the gnome network-manager to connect
to Vodafone (Germany).

The last issue I had was the fact, that I had to define the DNS servers
myself in the network-manager, because the resolv.conf file was not
updated (they work for me with the Bildmobil Speedstick):

139.7.30.125, 139.7.30.126

I hope this helps.

-- 
Several Huawei USB dongle don't work with kernel 2.6.31-12.40 (2.6.31.1 update related)
https://bugs.launchpad.net/bugs/446146
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