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--- diverse:fkernelmodul [17-02-2008 00:36]
kyrke oprettet
+++ diverse:fkernelmodul [16-09-2011 18:48]
@@ Linje 1: / Linje 1: @@
-====== F-Kernel Modul ======
-Det (officielle?) fklub kernel modul. Originalt lavet af jokke, mchro & kyrke 2006.
-<code>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/fs.h>
-#define MAX_Fs 99999 //-1 for infinitet
-int fCount = 0;
-static int device_open(struct inode *i, struct file *f)
-{
-	return 0;
-}
-static int device_close(struct inode *i, struct file *f)
-{
-	return 0;
-}
-static ssize_t device_read(
-	struct file *f, char *buffer, size_t length, loff_t *offset)
-{
-	*buffer = 'F';
-	fCount++;
-	if (fCount != -1 && fCount >= MAX_Fs){
-		panic("No more F's");
-	}
- 	return 1;
-}
-static ssize_t device_write(
-	struct file *f, const char *buffer, size_t length, loff_t *offset)
-{
-	if (*buffer = 'F' || *buffer = 'f'){
-		fCount--;
-	}else{
-		panic("My world only contains F!!! ")
-	}
-	return length;
-}
-static struct file_operations fops =
-{
-	.read = device_read,
-	.write = device_write,
-	.open = device_open,
-	.release = device_close
-};
-static int major;
-static int device_init(void)
-{
-	major = register_chrdev(0, "null device", &fops);
-	if (major < 0)
-	{
-		printk("Init failed (%d)\n", major);
-		return major;
-	}
-	printk("Got major %d\n", major);
-	return 0;
-}
-static void device_exit(void)
-{
-	int n = unregister_chrdev(major, "null device");
-	if (n < 0)
-	{
-		printk("Cleanup failed (%d)\n", n);
-	}
-}
-module_init(device_init);
-module_exit(device_exit);
-MODULE_LICENSE("GPL");
-</code>