Kernel Development Learning Pipeline

Lecture 22: Thursday, April 17 2025

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Announcements

1. Once again we would like to encourage use of camera and microphone when possible

   1. Keep in mind that it allows us to guage how you are doing and better tailor the lecture to your needs and reactions

Overview

1. What is a character device?

2. Why do we want to use character devices

3. How does the user interact with character devices?

4. How does a kernel module implement a character device?

Review

1. Modules: Line by line

   1. Describe the features of a simple program

   2. Go through each change necessary to rewrite the program as a kernel module

   3. Review the final product of this process

Slides

character devices: introduction

Notes

character devices: introduction