In this blog post I will try provide an example on how you could make your modules extendable within Drupal 7.

This is a very simple module that displays buttons with labels from your custom plugins on http://localhost/my-module/plugin page and with the configuration form here: http://localhost/admin/config/development/my-module.

Hopefully this is going to be a very useful tutorial for you and help you to make your modules extendable.

Download example module

Tutorial

First lets create a custom module with the following structure:

my_module<br>my_module/my_module.info<br>my_module/my_module.module<br>my_module/plugins/plugin.php<br>my_module/plugins/example.php<br>

In the my_module.info file implement your custom hook.