Setting up usb modem for ubuntu 10.10

If you want to setup the drivers for your usb modem, firstly check out this link. It shows the list of 3G hardware and the test result along with the necessary information.
In my case, I have Option Wireless iCON 225 (HSDPA) and I'm quite lucky to have mine listed as working and there's enough information for preparing the drivers.

Here's the summary of how I prepare the drivers:
1. Download and compile ozerocdoff --> udev.tar.gz (http://www.pharscape.org/ozerocdoff.html)
2. Skip installing hso driver kernel module since my kernel version is 2.6.35 (which is above or equal 2.6.31) --> http://www.pharscape.org/hso.html
3. Install HSOConnect (http://www.pharscape.org/hsoconnect.html) which requires hsolinkcontrol (http://www.peck.org.uk/hsolinkcontrol.html). And it turns out it just didn't work for me and I opt to use the default Network Manager.
4. Check if all works fine:
- Make sure hso module is already installed
find /lib/modules/`uname -r` -name 'hso.ko'
- Plug in the usb modem device and execute command below
lsmod | grep hso
If you see that hso is listed that's a good sign for you
- Check if the ports have been created
ls /dev/ttyHS*
My output is: /dev/ttyHS0 /dev/ttyHS1 /dev/ttyHS2
If you can see the output that also means ozerocdoff is already working
5. Go to my Network Manager, edit connections and add a new Mobile broadband connection.

6. Go online with my new broadband connection :)


References:

1. Network Manager - Hardware 3G (https://wiki.ubuntu.com/NetworkManager/Hardware/3G)
2. PHARscape iCon 255 (http://www.pharscape.org/icon225.html)
3. ozerocdoff (http://www.pharscape.org/forum/index.php?topic=545.0)
4. HSOConnect (http://www.pharscape.org/forum/index.php/topic,743.0.html)
5. Using Network Manager (http://www.pharscape.org/networkmanager-0.7.0-and-3g-wwan-modems.html)