diff --git a/code/lkm.c b/code/lkm.c
index 27b1d9db4..cb9563848 100644
--- a/code/lkm.c
+++ b/code/lkm.c
@@ -4,23 +4,64 @@
 #include <linux/proc_fs.h>
 #include <linux/uaccess.h>
 
+#define DEVICE_NAME "lkm"
+
+static int lkm_init(void);
+static int lkm_exit(void);
+int lkm_open(struct inode *, struct file *);
+int lkm_release(struct inode *, struct file *);
+long lkm_ioctl(struct file *, unsigned int, long unsigend int);
+
+module_init(lkm_init);
+module_exit(lkm_exit);
+
+static struct file_operations lkm_fops = {
+	.owner = "",
+	.open = lkm_open,
+	.release = lkm_release,
+	.unlocked_ioctl = lkm_ioctl,
+};
+
 MODULE_AUTHOR("Mira Chacku Purakal");
 MODULE_DESCRIPTION("Generic Module");
 MODULE_VERSION("0.1");
 MODULE_LICENSE("GPL");
 
 static int
-mod_init(void)
+lkm_init(void)
 {
-	printk(KERN_INFO "module init");
+	int ret;
+	printk(KERN_INFO "lkm: init: start");
+
+	ret = register_chrdev(0, DEVICE_NAME, &lkm_fops);
+	if (ret < 0) {
+		printk(KERN_ERR "lkm: init: register chrdev failed");
+		return ret;
+	}
+
 	return 0;
 }
 
 static void
-mod_exit(void)
+lkm_exit(void)
 {
-	printk(KERN_INFO "module exit");
+	printk(KERN_INFO "lkm: exit: start");
 }
 
-module_init(mod_init);
-module_exit(mod_exit);
+int
+lkm_open(struct inode *inode, struct file *fp)
+{
+	printk(KERN_INFO "lkm: open: start")
+}
+
+int
+lkm_release(struct inode *inode, struct file *fp)
+{
+	printk(KERN_INFO "lkm: release: start")
+}
+
+long
+lkm_ioctl(struct file *fp, unsigned int num, long unsigned int param)
+{
+	printk(KERN_INFO "lkm: release: start")
+}
diff --git a/flake.nix b/flake.nix
index 66425d179..0fc49f32c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -24,7 +24,6 @@
           gnumake
           clang-tools
           gcc
-          linuxHeaders
           texlab
           texliveFull
           flex