Hellooo! Any one there! Help Me!

On Tue, Jul 9, 2013 at 3:53 PM, satya gowtham kudupudi <
[email protected]> wrote:

> hi, this is what i've done...
>
> 1. i found 3 endpoints on interface 0.
> 2. # echo 1-1.2:1.0 > /sys/bus/usbl/drivers/option/unbind
> 3. # modprobe qmi_wwan
> 4. echo "19d2 fff1" > /sys/bus/usb/drivers/qmi_wwan/new_id
> 5. installed libqmi-utils
>
> i didnt find /dev/cdc-wdmX device !
>
> what should i do now?
> Thanks!
>
>
> On Wed, Jul 3, 2013 at 7:39 PM, Bjørn Mork <[email protected]> wrote:
>
>> satya gowtham kudupudi <[email protected]> writes:
>>
>> >
>> /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/ttyUSB0/tty/ttyUSB0/dev
>> >
>> /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.1/ttyUSB1/tty/ttyUSB1/dev
>> >
>> /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.2/ttyUSB2/tty/ttyUSB2/dev
>> >
>> /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.3/ttyUSB3/tty/ttyUSB3/dev
>> >
>> /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.4/ttyUSB4/tty/ttyUSB4/dev
>> >
>> /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.5/host5/target5:0:0/5:0:0:0/bsg/5:0:0:0/dev
>> >
>> /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.5/host5/target5:0:0/5:0:0:0/block/sdb/dev
>> >
>> /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.5/host5/target5:0:0/5:0:0:0/scsi_generic/sg1/dev
>> >
>> > this is sys tree i get when i plug in my modem. With this can u say
>> whether
>> > my modem is QMI capable?
>>
>> No, I cannot.  But I can say that it doesn't match the Gobi1k or Gobi2k
>> layouts.
>>
>> > How to add VID/PID pair to the kernel driver and recompile it?
>>
>> You don't need to do that just to test.  A QMI function needs 3
>> endpoints, so first try to find out if any of the unknown USB interfaces
>> have 3.    "lsusb -vd 19d1:fff1" will tell you this.
>>
>> For example:
>>
>>     Interface Descriptor:
>>       bLength                 9
>>       bDescriptorType         4
>>       bInterfaceNumber        3
>>       bAlternateSetting       0
>>       bNumEndpoints           3
>>       bInterfaceClass       255 Vendor Specific Class
>>       bInterfaceSubClass    255 Vendor Specific Subclass
>>       bInterfaceProtocol    255 Vendor Specific Protocol
>>       iInterface              0
>>
>> means that interface #3 has 3 endpoints and is a suspect.  Then unbind
>> this interface from the option driver and dynamically add the device ID
>> to qmi_wwan:
>>
>>  echo 2-1.2:1.3 >/sys/bus/usb-serial/drivers/option1/unbind
>>  modprobe qmi_wwan
>>  echo 19d1 fff1 >/sys/bus/usb/drivers/qmi_wwan/new_id
>>
>>
>> This should make qmi_wwan bind to interface #3 instead of option.  You
>> can now use libqmi tools to probe the /dev/cdc-wdmX device.  Or let MM
>> probe it if you built MM with QMI support.
>>
>> Repeat for every unknown (i.e not successfully probed by MM) interface
>> with 3 endpoints.
>>
>>
>> Bjørn
>>
>
>
>
> --
> *- Gowtham*
>



-- 
*Gowtham*
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