Make new GrameenPhone modems(Huawei E1550) working in ubutnu

New gp modem does not work with ubuntu 10.04. but it was works ok with windows. this is a bug of ubuntu 10.04. this modem has a card reader with it. ubuntu recognizes the card reader but it cant recognize huawei wireless broadband devices. all you have to do is install the package below

sudo apt-get install usb-modeswitch
sudo modprobe option

this package helps ubuntu recognize the modem.
if you are interested see this (post number 32).