LinuxModules

First Module

I just inserted my first kernel module. being the hello world of modules its utterly useless except for making me feel good. i'm reading O'Reillys Linux Device Drivers 3 which they have gratiously provided for free (that also makes me feel good).

#include <linux/init.h>
#include <linux/module.h>
MODULE_LICENSE("Dual BSD/GPL");
static int hello_init(void)
{
    printk(KERN_ALERT "Hello, world\n");
    return 0;
}
static void hello_exit(void)
{
    printk(KERN_ALERT "Goodbye, cruel world\n");
}
module_init(hello_init);
module_exit(hello_exit);

while i'm getting the basics under my belt i probably won't post much here. please stay tuned...

real drivers

• BfKentDisplay - I am working on my first device driver. The hardware is a SPI based ChLCD.
• KernelFifo - Mutexless Circular Fifo kernel module For theory of this queue see the DaviesCircularQueue

-- ChristopherPepe - 21 Sep 2006