Second test with the patch.

$ uname -a
Linux cyril-laptop 2.6.31-13-generic #44lp446146apw1 SMP Mon Oct 12 09:13:02 UTC 2009 x86_64 GNU/Linux

Still does not work :-( Kernel logs below. The device is recognize as USB mass storage first but then disappear. network-manager recognizes the modem during a few seconds but disappear again.

[  209.730068] usb 5-2: new full speed USB device using uhci_hcd and address 2
[  209.893536] usb 5-2: configuration #1 chosen from 1 choice
[  210.095042] Initializing USB Mass Storage driver...
[  210.096516] scsi5 : SCSI emulation for USB Mass Storage devices
[  210.096646] usbcore: registered new interface driver usb-storage
[  210.096650] usb-storage: device found at 2
[  210.096652] usb-storage: waiting for device to settle before scanning
[  210.096655] USB Mass Storage support registered.
[  210.470108] usb 5-2: USB disconnect, address 2
[  210.750702] usb 5-2: new full speed USB device using uhci_hcd and address 3
[  210.914533] usb 5-2: configuration #1 chosen from 1 choice
[  210.927444] scsi8 : SCSI emulation for USB Mass Storage devices
[  210.928538] usb-storage: device found at 3
[  210.928540] usb-storage: waiting for device to settle before scanning
[  210.980952] usbcore: registered new interface driver usbserial
[  210.980964] USB Serial support registered for generic
[  210.981018] usbcore: registered new interface driver usbserial_generic
[  210.981019] usbserial: USB Serial Driver core
[  211.028778] USB Serial support registered for GSM modem (1-port)
[  211.028829] option 5-2:1.0: GSM modem (1-port) converter detected
[  211.028914] usb 5-2: GSM modem (1-port) converter now attached to ttyUSB0
[  211.028929] option 5-2:1.1: GSM modem (1-port) converter detected
[  211.028971] usb 5-2: GSM modem (1-port) converter now attached to ttyUSB1
[  211.028986] usbcore: registered new interface driver option
[  211.028988] option: v0.7.2:USB Driver for GSM modems
[  215.921573] usb-storage: device scan complete
[  215.924501] scsi 8:0:0:0: CD-ROM            HUAWEI   Mass Storage     2.31 PQ: 0 ANSI: 2
[  215.946494] sr1: scsi-1 drive
[  215.946607] sr 8:0:0:0: Attached scsi CD-ROM sr1
[  215.946670] sr 8:0:0:0: Attached scsi generic sg2 type 5
[  228.378573] sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00
[  228.378583] sr: Sense Key : No Sense [current] 
[  228.378587] sr: Add. Sense: No additional sense information
[  228.580566] sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00
[  228.580576] sr: Sense Key : No Sense [current] 
[  228.580580] sr: Add. Sense: No additional sense information
[  228.647531] option: option_instat_callback: error -108
[  228.647660] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[  228.647679] option 5-2:1.0: device disconnected
[  228.647739] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[  228.647754] option 5-2:1.1: device disconnected
[  228.762551] usb 5-2: reset full speed USB device using uhci_hcd and address 3
[  228.923753] option 5-2:1.1: GSM modem (1-port) converter detected
[  228.923840] usb 5-2: GSM modem (1-port) converter now attached to ttyUSB0
[  228.924468] option 5-2:1.0: GSM modem (1-port) converter detected
[  228.924522] usb 5-2: GSM modem (1-port) converter now attached to ttyUSB1
[  239.051606] option: option_instat_callback: error -108
[  243.936279] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[  243.936298] option 5-2:1.0: device disconnected
[  243.936353] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[  243.936373] option 5-2:1.1: device disconnected
[  244.050053] usb 5-2: reset full speed USB device using uhci_hcd and address 3
[  244.180064] usb 5-2: device descriptor read/64, error -71
[  244.420062] usb 5-2: device descriptor read/64, error -71
[  244.652563] usb 5-2: reset full speed USB device using uhci_hcd and address 3
[  244.780066] usb 5-2: device descriptor read/64, error -71
[  245.020876] usb 5-2: device descriptor read/64, error -71
[  245.260070] usb 5-2: reset full speed USB device using uhci_hcd and address 3
[  245.680062] usb 5-2: device not accepting address 3, error -71
[  245.802579] usb 5-2: reset full speed USB device using uhci_hcd and address 3
[  246.220061] usb 5-2: device not accepting address 3, error -71
[  246.220128] usb 5-2: USB disconnect, address 3
[  246.350075] usb 5-2: new full speed USB device using uhci_hcd and address 4
[  246.480057] usb 5-2: device descriptor read/64, error -71
[  246.720089] usb 5-2: device descriptor read/64, error -71
[  246.950083] usb 5-2: new full speed USB device using uhci_hcd and address 5
[  247.082560] usb 5-2: device descriptor read/64, error -71
[  247.320087] usb 5-2: device descriptor read/64, error -71
[  247.551119] usb 5-2: new full speed USB device using uhci_hcd and address 6
[  247.970062] usb 5-2: device not accepting address 6, error -71
[  248.100040] usb 5-2: new full speed USB device using uhci_hcd and address 7
[  248.520532] usb 5-2: device not accepting address 7, error -71
[  248.520552] hub 5-0:1.0: unable to enumerate USB device on port 2