how to connect Tata Docomo USB modem in Lucid
mightydreams at gmail.com
Sun Jul 24 10:49:05 UTC 2011
On Sun, Jul 24, 2011 at 3:27 PM, Tapas Mishra <mightydreams at gmail.com> wrote:
> On Sun, Jul 24, 2011 at 12:48 PM, Abhishek Dixit <abhidixit87 at gmail.com> wrote:
>> 2011/7/24 সাজেদুর রহিম জোয়ারদার <toshazed at gmail.com>:
>>> Dear Abhishek
>>> I am 'ring', trying to resolve your Tata Docomo connection problem.
>>> May I have some screenshots of your system and the workflow that you are
>>> doing. Such as setting up the connection, trying to connect, failed msg etc.
>>> Plese upload the pics into your picasa account and share the links here as
>>> though mailing list didn't allow attachments.
>>> With regards
>> Thanks Ring I am describing all the steps starting from scratch
>> Step 1)
>> I bought a USB modem and lsusb shows
>> Bus 002 Device 002: ID 05c6:9000 Qualcomm, Inc.
>> Step 2) Following is /var/log/messages when I connect the USB modem (
>> usb-modeswitch was not present when I connected initially )
>> Step 3) Now I after some Googling came to know i usb-modswitch so
>> installed usb-modeswitch (via synaptics)
>> and connected the USB modem to laptop the color of light changed green
>> Step 4) and /var/log/messages after usb-modswitch was installed
>> Step 5) and lsusb showed
>> Bus 002 Device 003: ID 05c6:9000 Qualcomm, Inc.
>> Step 6) but I noted here even after installing usb-modswitch the config file
>> was missing so I created the file as given on following link
>> the file /etc/usb_modeswitch.d/05c6\:9000 contains
>> DefaultVendor= 0x05c6
>> DefaultProduct= 0x9000
>> TargetVendor= 0x05c6
>> TargetProduct= 0x9000
>> (can also see it here http://paste.ubuntu.com/651056/)
>> and I verified it ,if it is working by following command
>> Step 7)
>> root at bond:~# usb_modeswitch -W -c /etc/usb_modeswitch.d/05c6\:9000
>> the output of above command is
>> and the problem of above output I note is line no 110,111
>> USB error: error sending control message: Broken pipe
>> Error: could not get description string "product"
This error can be over come via using
you better do not give TargetVendor and TargetProduct but rather the
class of the device after switching (initially it's "0x08"):
This will prevent usb_modeswitch from running twice which it did with
your configuration, removing the serial driver again.
So your /etc/usb_modeswitch.d/05c6:9000 should look like
>> Step 8)
>> Now being sure of the fact that modem has been detected on my system
>> I did
>> modprobe usbserial vendor=0x056c product=9000
>> Step 9) As per this blog
>> I had created a new connection in
>> System-->Preferences-->Mobile Broadband-->Add ----here I had added Tata Docomo
>> you can see the corresponding snapshots here
>> the connection option in antenna applet for this new mobile broadband
>> connection on system tray did appear
>> but upon selecting it was not able to connect to internet.
>> Without installing usb-modeswitch this option was not coming.So I
>> think some thing did proceded but not fully.
>> I have also tried using wvdialconf and wvdial and they have also not
>> been able to work.
>> The wvdialconf output was following
>> wvdial.conf by above was ----> http://paste.ubuntu.com/651061/
and in your case /dev/ttyUSB1 is just for measuring quality of signal
so try with /dev/ttyUSB2 or some thing else.
your wvdial.conf should like following
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Modem Type = USB Modem
Phone = *99***1#
ISDN = 0
Username = " "
Password = " "
Init1 = ATZ
Init3 = AT+CGDCONT=1,"IP","TATA.DOCOMO.INTERNET"
Modem = /dev/ttyUSB2
Baud = 9600
Auto DNS = 1
Dial Command = ATDT
Carrier Check = yes
Stupid Mode = 1
note I have added Init3 commands which are not present in your file.
After this use following commands
1) usb_modeswitch -W -c /etc/usb_modeswitch.d/05c6:900
2) modeprobe usbserial vendor=0x05c6 product=0x9000
run all these commands as root
and I hope you will get connected let me know the output of /var/log/messages
if any of the above steps I told you fails.
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