diff --git a/fs/devfs.c b/fs/devfs.c
index 84c619f..d2b8010 100644
--- a/fs/devfs.c
+++ b/fs/devfs.c
@@ -251,10 +251,15 @@
 	if (!cdev)
 		return ERR_PTR(-ENOENT);
 
-	inode = devfs_get_inode(dir->i_sb, dir, S_IFCHR | S_IRWXUGO);
+	inode = devfs_get_inode(dir->i_sb, dir, S_IFCHR);
 	if (!inode)
 		return ERR_PTR(-ENOMEM);
 
+	if (cdev->ops->write)
+		inode->i_mode |= S_IWUSR;
+	if (cdev->ops->read)
+		inode->i_mode |= S_IRUSR;
+
 	dinode = container_of(inode, struct devfs_inode, inode);
 
 	inode->i_size = cdev->size;