diff --git a/pycardium/modules/os.c b/pycardium/modules/os.c
index 874a069322faaefaff63c493ebb10d3aa8ffb382..1633def0d9ea69dece38040f304445153295e21d 100644
--- a/pycardium/modules/os.c
+++ b/pycardium/modules/os.c
@@ -182,6 +182,31 @@ static mp_obj_t mp_os_urandom(mp_obj_t size_in)
 	return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
 }
 static MP_DEFINE_CONST_FUN_OBJ_1(urandom_obj, mp_os_urandom);
+enum usb_config_device {
+	USB_Device_None,
+	USB_Device_Flash,
+	USB_Device_Serial,
+};
+
+static mp_obj_t mp_os_usbconfig(mp_obj_t dev)
+{
+	int device = mp_obj_get_int(dev);
+	switch (device) {
+	case USB_Device_None:
+		epic_usb_shutdown();
+		break;
+	case USB_Device_Flash:
+		epic_usb_storage();
+		break;
+	case USB_Device_Serial:
+		epic_usb_cdcacm();
+		break;
+	default:
+		mp_raise_ValueError("Invalid parameter");
+	}
+	return mp_const_none;
+}
+static MP_DEFINE_CONST_FUN_OBJ_1(usbconfig_obj, mp_os_usbconfig);
 
 static const mp_rom_map_elem_t os_module_globals_table[] = {
 	{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_os) },
@@ -194,6 +219,11 @@ static const mp_rom_map_elem_t os_module_globals_table[] = {
 	{ MP_ROM_QSTR(MP_QSTR_rename), MP_ROM_PTR(&rename_obj) },
 	{ MP_ROM_QSTR(MP_QSTR_read_battery), MP_ROM_PTR(&read_battery_obj) },
 	{ MP_ROM_QSTR(MP_QSTR_urandom), MP_ROM_PTR(&urandom_obj) },
+	{ MP_ROM_QSTR(MP_QSTR_usbconfig), MP_ROM_PTR(&usbconfig_obj) },
+
+	{ MP_ROM_QSTR(MP_QSTR_SERIAL), MP_ROM_INT(USB_Device_Serial) },
+	{ MP_ROM_QSTR(MP_QSTR_FLASH), MP_ROM_INT(USB_Device_Flash) },
+	{ MP_ROM_QSTR(MP_QSTR_NONE), MP_ROM_INT(USB_Device_None) },
 };
 
 static MP_DEFINE_CONST_DICT(os_module_globals, os_module_globals_table);
diff --git a/pycardium/modules/qstrdefs.h b/pycardium/modules/qstrdefs.h
index c5813602f9990763e91c17dc25746f59e83eb07c..2cf62ed1223632e9508f684f6ff0fbade9fd7c29 100644
--- a/pycardium/modules/qstrdefs.h
+++ b/pycardium/modules/qstrdefs.h
@@ -137,6 +137,10 @@ Q(mkdir)
 Q(rename)
 Q(read_battery)
 Q(urandom)
+Q(usbconfig)
+Q(FLASH)
+Q(SERIAL)
+Q(NONE)
 
 /* gpio */
 Q(gpio)