Linux modinfo Guide

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.

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Table of Contents

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

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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

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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.)

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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

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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

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Troubleshooting

Module Not Found

Check module:

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

# Or
modinfo module-name

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Summary

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

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Next Steps

• lsmod Guide - List modules
• modprobe Guide - Module management
• Kernel Management - Kernel management
• modinfo Documentation: man modinfo

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