diff --git a/tools/device.h b/tools/device.h
new file mode 100644
index 0000000..5e0e348
--- /dev/null
+++ b/tools/device.h
@@ -0,0 +1,13 @@
+/*
+ *
+ * (c) 2005 Laurent Vivier <LaurentVivier@wanadoo.fr>
+ *
+ */
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdio.h>
+
+extern int device_open(void);
+extern void device_close(void);
+extern void device_read(off_t offset, void* buffer, size_t size);