Linux modinfo Guide - ryzendew/Linux-Tips-and-Tricks GitHub Wiki

Linux modinfo Guide

Complete beginner-friendly guide to modinfo on Linux, covering Arch Linux, CachyOS, and other distributions including kernel module information, driver details, and module properties.

Table of Contents

  1. Understanding modinfo
  2. modinfo Basics
  3. Module Information
  4. Module Properties
  5. Troubleshooting

Understanding modinfo

What is modinfo?

modinfo shows kernel module information.

Uses:

  • Module info: Get module details
  • Driver information: See driver info
  • Module properties: View module properties
  • Troubleshooting: Troubleshoot modules

Why it matters:

  • Module details: Understand modules
  • Driver information: Get driver details
  • Troubleshooting: Debug module issues

modinfo Basics

Show Module Info

Basic usage:

# Show module information
modinfo module-name

# Shows all module info

Specific Field

Get field:

# Get specific field
modinfo -F description module-name

# -F = field (description, author, etc.)

Module Information

Common Fields

Available fields:

# Description
modinfo -F description module-name

# Author
modinfo -F author module-name

# Version
modinfo -F version module-name

# License
modinfo -F license module-name

All Fields

Complete info:

# All information
modinfo module-name

# Shows all fields

Module Properties

Module Path

Find module:

# Module filename
modinfo -F filename module-name

# Shows module file path

Dependencies

Module dependencies:

# Dependencies
modinfo -F depends module-name

# Shows required modules

Troubleshooting

Module Not Found

Check module:

# Verify module exists
find /lib/modules -name "module-name.ko"

# Or
modinfo module-name

Summary

This guide covered modinfo usage, module information, and driver details for Arch Linux, CachyOS, and other distributions.

Next Steps

This guide covers Arch Linux, CachyOS, and other Linux distributions. For distribution-specific details, refer to your distribution's documentation.