evtest software package provides utility to monitor Linux input device events, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install evtest
evtest is installed in your system.
Make ensure the evtest package were installed using the commands given below,
$ sudo dpkg-query -l | grep evtest *
You will get with evtest package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Utilities |
| Package | evtest |
| Version | 1:1.33-1 |
| Description | utility to monitor Linux input device events |
| Sub Section | Utils |