[Bug 554099] Re: Qualcomm Gobi 2000 3G (gobi_loader/qcserial) broken

[lapistano]

@Simon I just upgraded the kernel as Ubunutu 10.04 asked me to and redid
the kernel module patching and installation as tnf described in comment
#33. If the modem is not recognized I have to

$>sudo rmmod qcserial
$>sudo modprobe qcserial
$>sudo killall modem-manager

to get it recognized and listed in the Networkmanager. Sometimes I am not able to unload the qcserial module, because of somekind of a circular reference between the the 3 (qcserial,usb_wwan, usbserial) modules. 
Also a 

$>killall modem-manager

does not bring it up, but a reboot sometimes does the trick. But once recognized the connection is just fine (after I found out to use the Telefonica firmware) and responsive. I can establish a PPTP VPN connection to my server with out any problems and it even survives hibernation and an on/off cycle using the 'power switch' to turn on/off the wireless hardware (the switch on the right hand side right next to the eSata port).
About the error you highlighted: I do not experience this behavior on my machine.

For further investigation here are the stats of my machine. If there is
anything else you need just let me know.

$ ll 7xwc44ww.exe 
-rw-r--r-- 1 lapis lapis 31243392 2010-07-05 20:26 7xwc44ww.exe

$ md5sum 7xwc44ww.exe 
5d59b037c74559a2276aeb21cdf5b692  7xwc44ww.exe

$ uname -a
Linux trillian 2.6.32-24-generic-pae #39-Ubuntu SMP Wed Jul 28 07:39:26 UTC 2010 i686 GNU/Linux
$ lsusb
Bus 002 Device 003: ID 05c6:9204 Qualcomm, Inc. 
[...]

* dmesg, if modem gets not recognized at startup:
<---snip--->
[   11.793011] USB Serial support registered for Qualcomm USB modem
[   11.793150] qcserial 2-1.4:1.1: Qualcomm USB modem converter detected
[   11.793259] usb 2-1.4: Qualcomm USB modem converter now attached to ttyUSB0
[   11.793287] usbcore: registered new interface driver qcserial
<---snip--->

Seems the modem gets recognized by the system, but not attached to a tty
to be able to be used. So I reloaded the qcserial and killed the modem-
manager stuff. And violà:

* dmesg after reloading the kernel module:
<---snip--->
[   69.866433] usbcore: deregistering interface driver qcserial
[   69.866546] qcserial ttyUSB0: Qualcomm USB modem converter now disconnected from ttyUSB0
[   69.866560] qcserial 2-1.4:1.1: device disconnected
[   69.866572] USB Serial deregistering driver Qualcomm USB modem
[  110.872535] USB Serial support registered for Qualcomm USB modem
[  110.872560] qcserial 2-1.4:1.1: Qualcomm USB modem converter detected
[  110.872641] usb 2-1.4: Qualcomm USB modem converter now attached to ttyUSB0
[  110.872667] usbcore: registered new interface driver qcserial
[  114.899703] usb 2-1.4: USB disconnect, address 3
[  114.899891] qcserial ttyUSB0: Qualcomm USB modem converter now disconnected from ttyUSB0
[  114.899915] qcserial 2-1.4:1.1: device disconnected
[  115.130953] usb 2-1.4: new high speed USB device using ehci_hcd and address 4
[  115.233937] usb 2-1.4: configuration #1 chosen from 1 choice
[  115.238163] qcserial 2-1.4:1.2: Qualcomm USB modem converter detected
[  115.238288] usb 2-1.4: Qualcomm USB modem converter now attached to ttyUSB0
<---snip--->

the last line is what you wanna see to be sure the modem is ready to go.

-- 
Qualcomm Gobi 2000 3G (gobi_loader/qcserial) broken
https://bugs.launchpad.net/bugs/554099
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