Hi Friends,

I have tried to use Airtel USB modem device not detected as modem in RHEL6

Product id : 12d1
Vendor id : 1446

This SIM card type of USB modem. So please let me know the usb_modeswitch rules for converting from usb-storage to usb modem in the boot level.

I have tried other CDMA USB modem which is having same product id and vendor id that is converted into modem properly since USB convert rule in 61-option-modem-modeswitch.rules under /lib/udev/rules.d/

ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1446", RUN+="modem-modeswitch -v 0x%s{idVendor} -p 0x%s{idProduct} -t option-zerocd"

But my Airtel E1731 is SIM card type and not CDMA so it is nor working. So please advice me the rule.

Thanks

Did you run this command?
Can you see your modem in the list?

When you run following command
Have you added vendor id and product id of your usb modem in modprobe?
You will get vid and pid from output of command lsusb

If not add them and run
if it shows modem name like /dev/ttysomething/
it means it is connected. Make a new connection using mobile broadband.
Try to connect to internet.

If not
Now paste the out put.

When we run this command modprobe usbserial vendor=0x12d1 product=0x1446 it says, No drivers found, hardware detached before like this...

---------- Post added 07-24-13 at 11:00 PM ----------

Yes. When we run wvdial command it says there is no modem found

Post your output of lsusb. Not complete , the lines in which shows the details of your Huawei modem .

Bus 002 Device 004: ID 12d1:1446 Huawei Technologies Co., Ltd. E1552/E1800/E173 (HSPA modem)

Once again try to run this.
Now run
or
Now it should detect the modem.
I haven't tried this on RHEL but I tried this on CentOS (A clone of redhat) and it was perfectly working there.

Take a look at these links too.
http://www.techonia.com/530/install-...b-modem-centos
This is for slackware but your problem is described here
http://www.linuxquestions.org/linux/...weiec152_modem

Actually i ran this command usb_modeswitch -c /etc/usb_modeswitch.d/12d1:1446 and it was converted into modem and it was mapped as well.

But it is not working when unplug/plug automatically. Every time it is required to run this command once i plugged. Can we make this conversion automatically once we plugged dongle into machine?

You can write a script for it that whenever you plug in the modem, it will run the script.

Create a new udev rules file in /etc/udev/rules.d/

Take help from here,
http://www.redhat.com/magazine/002dec04/features/udev/
http://ekuric.wordpress.com/2011/08/...ng-udev-rules/