libcec2 software package provides USB CEC Adaptor communication Library (shared library), 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 libcec2
libcec2 is installed in your system.
Make ensure the libcec2 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libcec2 *
You will get with libcec2 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libcec2 |
| Version | 2.1.4-1ubuntu2 |
| Description | USB CEC Adaptor communication Library (shared library) |
| Sub Section | libs |