+extern __xdata struct ao_config ao_config;
+
+void
+ao_config_get(void);
+
+void
+ao_config_init(void);
+
+/*
+ * ao_product.c
+ *
+ * values which need to be defined for
+ * each instance of a product
+ */
+
+extern const uint8_t ao_usb_descriptors [];
+extern const uint16_t ao_serial_number;
+extern const char ao_version[];
+extern const char ao_manufacturer[];
+extern const char ao_product[];
+
+#endif /* _AO_H_ */