diff --git a/setup.py b/setup.py
index 3c6296e..2a475f1 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@ classifiers = ['Development Status :: 3 - Alpha',
                'Topic :: System :: Hardware']
 
 setup(name             = 'CHIP_IO',
-      version          = '0.0.7',
+      version          = '0.0.8',
       author           = 'Robert Wolterman',
       author_email     = 'robert.wolterman@gmail.com',
       description      = 'A module to control CHIP IO channels',
diff --git a/source/constants.c b/source/constants.c
index 8254a51..7696318 100644
--- a/source/constants.c
+++ b/source/constants.c
@@ -76,6 +76,6 @@ void define_constants(PyObject *module)
    both_edge = Py_BuildValue("i", BOTH_EDGE);
    PyModule_AddObject(module, "BOTH", both_edge);
 
-   version = Py_BuildValue("s", "0.0.7");
+   version = Py_BuildValue("s", "0.0.8");
    PyModule_AddObject(module, "VERSION", version);
 }
diff --git a/source/py_gpio.c b/source/py_gpio.c
index 3e19d21..f417459 100644
--- a/source/py_gpio.c
+++ b/source/py_gpio.c
@@ -546,6 +546,19 @@ static PyObject *py_setwarnings(PyObject *self, PyObject *args)
    Py_RETURN_NONE;
 }
 
+// python function base = get_xio_base()
+static PyObject *py_gpio_base(PyObject *self, PyObject *args)
+{
+   unsigned int value;
+   PyObject *py_value;
+
+   value = get_xio_base();
+
+   py_value = Py_BuildValue("i", value);
+
+   return py_value;
+}
+
 // Internal unit tests
 extern int num_get_xio_base;
 extern pins_t pins_info[];
@@ -668,6 +681,7 @@ PyMethodDef gpio_methods[] = {
    {"wait_for_edge", py_wait_for_edge, METH_VARARGS, "Wait for an edge.\ngpio - gpio channel\nedge - RISING, FALLING or BOTH"},
    {"gpio_function", py_gpio_function, METH_VARARGS, "Return the current GPIO function (IN, OUT, ALT0)\ngpio - gpio channel"},
    {"setwarnings", py_setwarnings, METH_VARARGS, "Enable or disable warning messages"},
+   {"get_gpio_base", py_gpio_base, METH_VARARGS, "Get the XIO base number for sysfs"},
    {"selftest", py_selftest, METH_VARARGS, "Internal unit tests"},
    {NULL, NULL, 0, NULL}
 };
diff --git a/test/gptest.py b/test/gptest.py
index 0b0cf99..886bbef 100755
--- a/test/gptest.py
+++ b/test/gptest.py
@@ -99,7 +99,9 @@ print "SETTING UP EDGE DETECTION ON XIO-P0"
 GPIO.add_event_detect("XIO-P0", GPIO.FALLING, myfuncallback)
 
 print "VERIFYING EDGE DETECT"
-f = open("/sys/class/gpio/gpio408/edge", "r")
+base = GPIO.get_gpio_base()
+gfile = "/sys/class/gpio/gpio%d/edge" % base
+f = open(gfile, "r")
 edge = f.read()
 f.close()
 print "EDGE: %s" % edge