halevt software package provides generic handler for HAL events, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install halevt
halevt is installed in your system.
Make ensure the halevt package were installed using the commands given below,
$ sudo dpkg-query -l | grep halevt *
You will get with halevt package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Administration Utilities |
| Package | halevt |
| Version | 0.1.6.2-2 |
| Description | generic handler for HAL events |
| Sub Section | Admin |