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1 files changed, 25 insertions, 8 deletions

diff --git a/handlers/chardev.c b/handlers/chardev.c
index 3594bce..1c1f923 100644
--- a/handlers/chardev.c
+++ b/handlers/chardev.c
@@ -1,6 +1,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/fs.h>
+#include <linux/sched.h>
 #include <asm/uaccess.h>
 
 #include "chardev.h"
@@ -11,9 +12,15 @@
 
 static int Major;
 static int opened = 0;
-static char msg[BUF_LEN];
+static char chardev_buffer[BUF_LEN];
 static char* msg_ptr;
 
+void dumb(void)
+{
+	printk(KERN_INFO "DUMB EXECUTED\n");
+}
+EXPORT_SYMBOL(dumb);
+
 static struct file_operations fops = {
 	.read = device_read,
 	.write = device_write,
@@ -23,6 +30,7 @@ static struct file_operations fops = {
 
 int init_module(void)
 {
+
 	Major = register_chrdev(0, DEVICE_NAME, &fops);
 
 	if (Major < 0) {
@@ -53,9 +61,9 @@ static int device_open(struct inode* inode, struct file* filp)
 
 	opened++;
 	if (counter++ == 0)
-		sprintf(msg, "Come on, write something here :D\n");
+		sprintf(chardev_buffer, "Come on, write something here :D\n");
 
-	msg_ptr = msg;
+	msg_ptr = chardev_buffer;
 	try_module_get(THIS_MODULE);
 
 	return SUCCESS;
@@ -70,18 +78,27 @@ static int device_release(struct inode* inode, struct file* filp)
 	return 0;
 }
 
-static ssize_t device_read(struct file* filp, char* buffer, size_t len, loff_t* off)
+static ssize_t device_read(struct file* filp, char* buff, size_t len, loff_t* off)
 {
 	int bytes = 0;
+	char strpid[14];
+	snprintf(strpid, 14, "PID: %d", (current->pid));
 
 	if (*msg_ptr == 0)
 		return 0;
 
 	while (len-- && *msg_ptr) {
-		put_user(*msg_ptr++, buffer++);
+		put_user(*msg_ptr++, buff++);
 		bytes++;
 	}
 
+	copy_to_user(buff, strpid, 14);
+	bytes += 14;
+	buff += 14;
+
+	put_user('\n', buff++);
+	bytes++;
+
 	return bytes;
 }
 
@@ -95,11 +112,11 @@ static ssize_t device_write(struct file* filp, const char* buff, size_t len, lof
 	}
 
 	while (len--) {
-		get_user(msg[bytes], buff++);
+		get_user(chardev_buffer[bytes], buff++);
 		bytes++;
 	}
-	msg[bytes] = '\0';
+	chardev_buffer[bytes] = '\0';
 
-	msg_ptr = msg;
+	msg_ptr = chardev_buffer;
 	return bytes;
 }