diff --git a/positioning.i b/positioning.i
new file mode 100644
index 0000000..228bf25
--- /dev/null
+++ b/positioning.i
@@ -0,0 +1,20 @@
+/* File : positioning.i */
+%module positioning
+
+%{
+#include "positioning.h"
+#define SWIG_PYTHON_STRICT_BYTE_CHAR
+%}
+typedef double double_t;
+typedef long int ssize_t;
+
+struct timeval {
+long int tv_sec;
+long int tv_usec;
+};
+
+%include "stdint.i"
+%include "cpointer.i"
+%include "positioning.h"
+%pointer_functions(uint32_t, uint32ptr);
+
diff --git a/setup.py b/setup.py
index b8f9cd9..c1fe79e 100644
--- a/setup.py
+++ b/setup.py
@@ -2,11 +2,14 @@
 iso22133 = Extension('_iso22133',
    sources=['iso22133.i','iso22133.c','positioning.c'],
 )
+positioning = Extension('_positioning',
+   sources=['positioning.i','positioning.c'],
+)
 
 setup (name = 'iso22133',
    version = '0.1',
    author = "AstaZero",
    description = """iso22133 implementation wrapper""",
-   ext_modules = [iso22133],
-   py_modules = ["iso22133"],
+   ext_modules = [iso22133, positioning],
+   py_modules = ["iso22133", "positioning"],
 )