Re: ZTE MF636 USB modem is not supported

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Ole Reier Ulland schrieb:

usb 5-7: USB disconnect, address 25
option: option_instat_callback: error -108
option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
option 5-7:1.0: device disconnected
option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
option 5-7:1.1: device disconnected
option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
option 5-7:1.3: device disconnected
usb 5-7: new high speed USB device using ehci_hcd and address 26
usb 5-7: New USB device found, idVendor=19d2, idProduct=2000
usb 5-7: New USB device strings: Mfr=2, Product=1, SerialNumber=0
usb 5-7: Product: ZTE CDMA Technologies MSM
usb 5-7: Manufacturer: ZTE, Incorporated
usb 5-7: configuration #1 chosen from 1 choice
scsi32 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 26
usb-storage: waiting for device to settle before scanning
usb 5-7: usbfs: process 28251 (usb_modeswitch) did not claim interface 0 before use
usb 5-7: USB disconnect, address 26

You probably did not wait long enough after replugging to see the re-binding of the driver. Some devices take quite a while to reappear after the mode switch. What is obvious from the dmesg output is that *before* the unplugging, the modem was properly switched and ready to use.

What you have is probably a port selection problem. Your "lsusb" output shows that the connection interface of the device is number "3". This is made available by the "option" driver as "ttyUSB2".

Mandriva network wizard doesn't allow to select the serial port manually, and I suspect it tries to use a wrong one. Fortunately, you can check/tweak that setting once you created a 3G connection (just skip the "connect now" step).

In /etc/sysconfig/network-scripts/ifcfg-ppp0 there is a MODEMPORT entry. Make sure it is set to "/dev/ttyUSB2".

For further questions be so kind and either switch over to
http://www.draisberghof.de/usb_modeswitch/bb/
or use your Mandriva bug report (I'll watch it); this issue is not really kernel-related.


Josua Dietze
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