Which command provides a detailed description of a loaded module?

The command that provides a detailed description of a loaded module is modinfo. This command retrieves information from the module's metadata, which includes details such as the module's version, description, author, and any parameters it may take. It is an essential tool for administrators when they need to understand what a specific kernel module does, which can be incredibly helpful for debugging or when configuring system settings.

In contrast, insmod is used to insert a new module into the kernel but does not provide any information about it. The command lsmod lists all currently loaded modules but only offers a brief overview, such as their names and sizes, without any detailed information. Lastly, rmmod is responsible for removing a module from the kernel, not for providing details about its functionality or attributes. Thus, modinfo stands out as the command specifically aimed at delivering comprehensive information about a module.