linux-kernel-modules

name

linux-kernel-modules

description

Linux kernel module skill for writing and debugging loadable kernel modules. Use when writing LKMs with Kbuild, adding module parameters, creating /proc and sysfs entries, implementing character devices, debugging with KGDB or ftrace, or handling module signing for Secure Boot. Activates on queries about Linux kernel modules, loadable modules, Kbuild, module parameters, /proc filesystem, sysfs, character devices, KGDB, or module signing.

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

// hello.c — minimal loadable kernel module
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Your Name");
MODULE_DESCRIPTION("Minimal hello world module");
MODULE_VERSION("1.0");

static  __init 
{
    printk(KERN_INFO );
     ;   
}

  __exit 
{
    printk(KERN_INFO );
}

module_init(hello_init);
module_exit(hello_exit);