diff --git a/io.h b/io.h
index 2c35a1f..5424a99 100644
--- a/io.h
+++ b/io.h
@@ -3,11 +3,16 @@
 
 #define MAX_FDS 1024
 
-#include <stdlib.h>
-#include <sys/types.h>
-
+#include <stdarg.h>
 #include "inode.h"
 
+enum Flags {
+    O_READ = 1,
+    O_WRITE = 2,
+    O_APPEND = 4,
+    O_CREATE = 8
+};
+
 struct file_descriptor {
     Inode *inode;
     off_t offset;
@@ -19,7 +24,8 @@ struct Process {
     struct file_descriptor fd_table[MAX_FDS];
 };
 
-int allocate_fd(struct Process proc, Inode inode, int flags);
+struct Process* initialize_process();
+int allocate_fd(struct Process proc, Inode inode, int flags, ...);
 int emmafs_open(char name[]);
 int emmafs_close(char name[]);
 //int emmafs_read(int fd)