Linux lsusb Guide

Complete beginner-friendly guide to lsusb on Linux, covering Arch Linux, CachyOS, and other distributions including listing USB devices, USB device information, and hardware detection.

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Table of Contents

1. Understanding lsusb
2. lsusb Installation
3. lsusb Basics
4. USB Device Information
5. Troubleshooting

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Understanding lsusb

What is lsusb?

lsusb lists USB devices.

Uses:

• List USB devices: Show connected USB devices
• Device information: Get USB device details
• Hardware detection: Detect USB hardware
• Troubleshooting: Troubleshoot USB issues

Why it matters:

• Hardware detection: See USB devices
• Troubleshooting: Debug USB problems
• Device management: Manage USB devices

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lsusb Installation

Install lsusb

Arch/CachyOS:

# Install usbutils
sudo pacman -S usbutils

Debian/Ubuntu:

sudo apt install usbutils

Fedora:

sudo dnf install usbutils

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lsusb Basics

List Devices

Basic usage:

# List all USB devices
lsusb

# Shows device list

Verbose Output

Detailed information:

# Verbose output
lsusb -v

# -v = verbose (detailed info)

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USB Device Information

Tree View

Hierarchical view:

# Tree format
lsusb -t

# Shows USB bus tree

Specific Device

Device details:

# Specific device
lsusb -d vendor:product

# -d = device (vendor:product ID)

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Troubleshooting

lsusb Not Found

Check installation:

# Check lsusb
which lsusb

# Install if missing
sudo pacman -S usbutils

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Summary

This guide covered lsusb usage, USB device listing, and hardware detection for Arch Linux, CachyOS, and other distributions.

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Next Steps

• lspci Guide - List PCI devices
• Hardware Detection - Hardware detection
• lsusb Documentation: man lsusb

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