Linux Kernel Modules

Purpose

Guide agents through writing loadable Linux kernel modules (LKMs): the Kbuild build system, module parameters, /proc and sysfs interfaces, character device implementation, kernel debugging with KGDB and ftrace, and module signing for Secure Boot.

Triggers

• "How do I write a Linux kernel module?"
• "How do I add parameters to my kernel module?"
• "How do I create a /proc or sysfs entry?"
• "How do I implement a character device driver?"
• "How do I debug a kernel module with KGDB?"
• "How do I sign a kernel module for Secure Boot?"

Workflow

1. Minimal kernel module