broadcom-sta-dkms software package provides dkms source for the Broadcom STA Wireless driver, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install broadcom-sta-dkms
broadcom-sta-dkms is installed in your system.
Make ensure the broadcom-sta-dkms package were installed using the commands given below,
$ sudo dpkg-query -l | grep broadcom-sta-dkms *
You will get with broadcom-sta-dkms package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Administration Utilities |
| Package | broadcom-sta-dkms |
| Version | 6.30.223.141-1 |
| Description | dkms source for the Broadcom STA Wireless driver |
| Sub Section | Admin |