BootSpkr

A Linux kernel module that plays a melody through the PC speaker during boot.

Uses the legacy x86 PIT (8253/8254) and PC speaker interface to generate tones directly from kernel space.

This project exists mostly for fun and as a learning exercise covering:

• Kernel Workqueues
• Hardware I/O ports
• PIT programming
• PC speaker control

Features

• Plays a hardcoded melody on module load
• Asynchronous playback
• Uses the classic PC speaker interface
• No userspace daemon required

Building

make

Installation

sudo make install

The install target:

• Installs the module
• Updates module dependencies
• Configures automatic loading at boot

Usage

Load immediately:

sudo modprobe bootspkr

Unload:

sudo rmmod bootspkr