fixup m0 and nrf

12 files changed, 58 insertions, 90 deletions

diff --git a/shared-bindings/bleio/Address.c b/shared-bindings/bleio/Address.c
index 910938844..6cf495d83 100644
--- a/shared-bindings/bleio/Address.c
+++ b/shared-bindings/bleio/Address.c
@@ -69,22 +69,18 @@ STATIC uint8_t xdigit_8b_value(byte nibble1, byte nibble2) {
 //|     - `bleio.AddressType.RANDOM_PRIVATE_RESOLVABLE`
 //|     - `bleio.AddressType.RANDOM_PRIVATE_NON_RESOLVABLE`
 //|
-STATIC mp_obj_t bleio_address_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) {
-    mp_arg_check_num(n_args, n_kw, 1, 1, true);
-    bleio_address_obj_t *self = m_new_obj(bleio_address_obj_t);
-    self->base.type = &bleio_address_type;
-    self->type = ADDRESS_PUBLIC;
-
-    mp_map_t kw_args;
-    mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args);
-
+STATIC mp_obj_t bleio_address_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     enum { ARG_address };
     static const mp_arg_t allowed_args[] = {
         { MP_QSTR_address, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
     };
 
     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
-    mp_arg_parse_all(n_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+    bleio_address_obj_t *self = m_new_obj(bleio_address_obj_t);
+    self->base.type = &bleio_address_type;
+    self->type = ADDRESS_PUBLIC;
 
     const mp_obj_t address = args[ARG_address].u_obj;
 
diff --git a/shared-bindings/bleio/Broadcaster.c b/shared-bindings/bleio/Broadcaster.c
index c46de1d35..209e66490 100644
--- a/shared-bindings/bleio/Broadcaster.c
+++ b/shared-bindings/bleio/Broadcaster.c
@@ -59,24 +59,19 @@
 //|   :param float interval: how often to broadcast
 //|
 
-STATIC mp_obj_t bleio_broadcaster_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) {
-    mp_arg_check_num(n_args, n_kw, 0, 1, true);
-    bleio_broadcaster_obj_t *self = m_new_obj(bleio_broadcaster_obj_t);
-    self->base.type = &bleio_broadcaster_type;
-
-    mp_map_t kw_args;
-    mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args);
-
+STATIC mp_obj_t bleio_broadcaster_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     enum { ARG_interval };
     static const mp_arg_t allowed_args[] = {
         { MP_QSTR_interval, MP_ARG_OBJ, {.u_obj = MP_OBJ_NEW_SMALL_INT(1)} },
     };
 
     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
-    mp_arg_parse_all(n_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
 
     mp_float_t interval = mp_obj_get_float(args[ARG_interval].u_obj);
 
+    bleio_broadcaster_obj_t *self = m_new_obj(bleio_broadcaster_obj_t);
+    self->base.type = &bleio_broadcaster_type;
     // Do port-specific initialization. interval will be validated.
     common_hal_bleio_broadcaster_construct(self, interval);
 
diff --git a/shared-bindings/bleio/Characteristic.c b/shared-bindings/bleio/Characteristic.c
index 0a3fada13..ae83de864 100644
--- a/shared-bindings/bleio/Characteristic.c
+++ b/shared-bindings/bleio/Characteristic.c
@@ -51,14 +51,7 @@
 //|   :param bool write: Clients may write this characteristic; a response will be sent back
 //|   :param bool write_no_response: Clients may write this characteristic; no response will be sent back
 //|
-STATIC mp_obj_t bleio_characteristic_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) {
-    mp_arg_check_num(n_args, n_kw, 1, 1, true);
-    bleio_characteristic_obj_t *self = m_new_obj(bleio_characteristic_obj_t);
-    self->base.type = &bleio_characteristic_type;
-
-    mp_map_t kw_args;
-    mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args);
-
+STATIC mp_obj_t bleio_characteristic_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     enum {
         ARG_uuid, ARG_broadcast, ARG_indicate, ARG_notify, ARG_read, ARG_write, ARG_write_no_response,
     };
@@ -73,7 +66,7 @@ STATIC mp_obj_t bleio_characteristic_make_new(const mp_obj_type_t *type, size_t
     };
 
     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
-    mp_arg_parse_all(n_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
 
     const mp_obj_t uuid = args[ARG_uuid].u_obj;
 
@@ -81,6 +74,8 @@ STATIC mp_obj_t bleio_characteristic_make_new(const mp_obj_type_t *type, size_t
         mp_raise_ValueError(translate("Expected a UUID"));
     }
 
+    bleio_characteristic_obj_t *self = m_new_obj(bleio_characteristic_obj_t);
+    self->base.type = &bleio_characteristic_type;
     self->uuid = MP_OBJ_TO_PTR(uuid);
 
     bleio_characteristic_properties_t properties;
diff --git a/shared-bindings/bleio/CharacteristicBuffer.c b/shared-bindings/bleio/CharacteristicBuffer.c
index f0578a7ad..2bb4448c4 100644
--- a/shared-bindings/bleio/CharacteristicBuffer.c
+++ b/shared-bindings/bleio/CharacteristicBuffer.c
@@ -44,14 +44,7 @@
 //|   :param int buffer_size: Size of ring buffer that stores incoming data coming from client.
 //|     Must be >= 1.
 //|
-STATIC mp_obj_t bleio_characteristic_buffer_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) {
-    mp_arg_check_num(n_args, n_kw, 1, 2, true);
-    bleio_characteristic_buffer_obj_t *self = m_new_obj(bleio_characteristic_buffer_obj_t);
-    self->base.type = &bleio_characteristic_buffer_type;
-
-    mp_map_t kw_args;
-    mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args);
-
+STATIC mp_obj_t bleio_characteristic_buffer_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     enum { ARG_characteristic, ARG_buffer_size, };
     static const mp_arg_t allowed_args[] = {
         { MP_QSTR_characteristic,  MP_ARG_REQUIRED | MP_ARG_OBJ },
@@ -59,7 +52,7 @@ STATIC mp_obj_t bleio_characteristic_buffer_make_new(const mp_obj_type_t *type,
     };
 
     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
-    mp_arg_parse_all(n_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
 
     const mp_obj_t characteristic = args[ARG_characteristic].u_obj;
     const int buffer_size = args[ARG_buffer_size].u_int;
@@ -72,6 +65,8 @@ STATIC mp_obj_t bleio_characteristic_buffer_make_new(const mp_obj_type_t *type,
         mp_raise_ValueError(translate("Expected a Characteristic"));
     }
 
+    bleio_characteristic_buffer_obj_t *self = m_new_obj(bleio_characteristic_buffer_obj_t);
+    self->base.type = &bleio_characteristic_buffer_type;
     self->characteristic = MP_OBJ_TO_PTR(characteristic);
 
     common_hal_bleio_characteristic_buffer_construct(self, self->characteristic, buffer_size);
diff --git a/shared-bindings/bleio/Descriptor.c b/shared-bindings/bleio/Descriptor.c
index 4022632ad..9fcfc2dfd 100644
--- a/shared-bindings/bleio/Descriptor.c
+++ b/shared-bindings/bleio/Descriptor.c
@@ -71,21 +71,14 @@ enum {
 //|
 //|     The descriptor uuid. (read-only)
 //|
-STATIC mp_obj_t bleio_descriptor_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) {
-    mp_arg_check_num(n_args, n_kw, 0, 1, true);
-    bleio_descriptor_obj_t *self = m_new_obj(bleio_descriptor_obj_t);
-    self->base.type = type;
-
-    mp_map_t kw_args;
-    mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args);
-
+STATIC mp_obj_t bleio_descriptor_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     enum { ARG_uuid };
     static const mp_arg_t allowed_args[] = {
         { MP_QSTR_uuid, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
     };
 
     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
-    mp_arg_parse_all(n_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
 
     const mp_obj_t uuid_arg = args[ARG_uuid].u_obj;
 
@@ -93,6 +86,8 @@ STATIC mp_obj_t bleio_descriptor_make_new(const mp_obj_type_t *type, size_t n_ar
         mp_raise_ValueError(translate("Expected a UUID"));
     }
 
+    bleio_descriptor_obj_t *self = m_new_obj(bleio_descriptor_obj_t);
+    self->base.type = type;
     bleio_uuid_obj_t *uuid = MP_OBJ_TO_PTR(uuid_arg);
     common_hal_bleio_descriptor_construct(self, uuid);
 
diff --git a/shared-bindings/bleio/Peripheral.c b/shared-bindings/bleio/Peripheral.c
index cea44486f..eff4ca7f2 100644
--- a/shared-bindings/bleio/Peripheral.c
+++ b/shared-bindings/bleio/Peripheral.c
@@ -82,16 +82,7 @@ static const char default_name[] = "CIRCUITPY";
 //|   :param str name: The name used when advertising this peripheral
 //|
 
-STATIC mp_obj_t bleio_peripheral_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) {
-    mp_arg_check_num(n_args, n_kw, 0, 1, true);
-    bleio_peripheral_obj_t *self = m_new_obj(bleio_peripheral_obj_t);
-    self->base.type = &bleio_peripheral_type;
-    self->service_list = mp_obj_new_list(0, NULL);
-    self->notif_handler = mp_const_none;
-
-    mp_map_t kw_args;
-    mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args);
-
+STATIC mp_obj_t bleio_peripheral_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     enum { ARG_services, ARG_name };
     static const mp_arg_t allowed_args[] = {
         { MP_QSTR_services, MP_ARG_OBJ, {.u_obj = mp_const_none} },
@@ -99,13 +90,17 @@ STATIC mp_obj_t bleio_peripheral_make_new(const mp_obj_type_t *type, size_t n_ar
     };
 
     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
-    mp_arg_parse_all(n_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
 
     // If services is not an iterable, an exception will be thrown.
     mp_obj_iter_buf_t iter_buf;
     mp_obj_t iterable = mp_getiter(args[ARG_services].u_obj, &iter_buf);
     mp_obj_t service;
 
+    bleio_peripheral_obj_t *self = m_new_obj(bleio_peripheral_obj_t);
+    self->base.type = &bleio_peripheral_type;
+    self->service_list = mp_obj_new_list(0, NULL);
+    self->notif_handler = mp_const_none;
     while ((service = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
         if (!MP_OBJ_IS_TYPE(service, &bleio_service_type)) {
             mp_raise_ValueError(translate("services includes an object that is not a Service"));
diff --git a/shared-bindings/bleio/ScanEntry.c b/shared-bindings/bleio/ScanEntry.c
index e452c7267..b4a3c5504 100644
--- a/shared-bindings/bleio/ScanEntry.c
+++ b/shared-bindings/bleio/ScanEntry.c
@@ -248,7 +248,7 @@ STATIC mp_obj_t scanentry_get_service_uuids(mp_obj_t self_in) {
     mp_obj_t entries = mp_obj_new_list(0, NULL);
     for (size_t i = 0; i < uuids_len / sizeof(uint16_t); ++i) {
         const mp_obj_t uuid_int = mp_obj_new_int(uuids[sizeof(uint16_t) * i] | (uuids[sizeof(uint16_t) * i + 1] << 8));
-        const mp_obj_t uuid_obj = bleio_uuid_type.make_new(&bleio_uuid_type, 1, 0, &uuid_int);
+        const mp_obj_t uuid_obj = bleio_uuid_type.make_new(&bleio_uuid_type, 1, &uuid_int, NULL);
 
         mp_obj_list_append(entries, uuid_obj);
     }
diff --git a/shared-bindings/bleio/Scanner.c b/shared-bindings/bleio/Scanner.c
index 5d19778f6..dba455b2f 100644
--- a/shared-bindings/bleio/Scanner.c
+++ b/shared-bindings/bleio/Scanner.c
@@ -25,6 +25,7 @@
  */
 
 #include "py/objproperty.h"
+#include "py/runtime.h"
 #include "shared-bindings/bleio/ScanEntry.h"
 #include "shared-bindings/bleio/Scanner.h"
 
@@ -77,7 +78,9 @@ STATIC void bleio_scanner_print(const mp_print_t *print, mp_obj_t self_in, mp_pr
     mp_printf(print, "Scanner(interval: %d window: %d)", self->interval, self->window);
 }
 
-STATIC mp_obj_t bleio_scanner_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
+STATIC mp_obj_t bleio_scanner_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *all_args, mp_map_t *kw_args) {
+    mp_arg_check_num(n_args, kw_args, 0, 0, false);
+
     bleio_scanner_obj_t *self = m_new_obj(bleio_scanner_obj_t);
     self->base.type = type;
 
diff --git a/shared-bindings/bleio/Service.c b/shared-bindings/bleio/Service.c
index a0673bb2d..c3be26260 100644
--- a/shared-bindings/bleio/Service.c
+++ b/shared-bindings/bleio/Service.c
@@ -49,17 +49,7 @@
 //|   :param bool secondary: If the service is a secondary one
 //|
 
-STATIC mp_obj_t bleio_service_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) {
-    mp_arg_check_num(n_args, n_kw, 2, 3, true);
-    bleio_service_obj_t *self = m_new_obj(bleio_service_obj_t);
-    self->char_list = mp_obj_new_list(0, NULL);
-    self->base.type = &bleio_service_type;
-    self->device = mp_const_none;
-    self->handle = 0xFFFF;
-
-    mp_map_t kw_args;
-    mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args);
-
+STATIC mp_obj_t bleio_service_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     enum { ARG_uuid, ARG_characteristics, ARG_secondary };
     static const mp_arg_t allowed_args[] = {
         { MP_QSTR_uuid, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = mp_const_none} },
@@ -68,9 +58,7 @@ STATIC mp_obj_t bleio_service_make_new(const mp_obj_type_t *type, size_t n_args,
     };
 
     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
-    mp_arg_parse_all(n_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
-
-    self->is_secondary = args[ARG_secondary].u_bool;
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
 
     const mp_obj_t uuid = args[ARG_uuid].u_obj;
 
@@ -78,6 +66,12 @@ STATIC mp_obj_t bleio_service_make_new(const mp_obj_type_t *type, size_t n_args,
         mp_raise_ValueError(translate("Expected a UUID"));
     }
 
+    bleio_service_obj_t *self = m_new_obj(bleio_service_obj_t);
+    self->char_list = mp_obj_new_list(0, NULL);
+    self->base.type = &bleio_service_type;
+    self->device = mp_const_none;
+    self->handle = 0xFFFF;
+    self->is_secondary = args[ARG_secondary].u_bool;
     self->uuid = MP_OBJ_TO_PTR(uuid);
 
     // If characteristics is not an iterable, an exception will be thrown.
diff --git a/shared-bindings/bleio/UUID.c b/shared-bindings/bleio/UUID.c
index 703bc1c65..f2df9d095 100644
--- a/shared-bindings/bleio/UUID.c
+++ b/shared-bindings/bleio/UUID.c
@@ -51,8 +51,8 @@
 //|
 //|   :param int/buffer value: The uuid value to encapsulate
 //|
-STATIC mp_obj_t bleio_uuid_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) {
-    mp_arg_check_num(n_args, n_kw, 1, 1, false);
+STATIC mp_obj_t bleio_uuid_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    mp_arg_check_num(n_args, kw_args, 1, 1, false);
 
     bleio_uuid_obj_t *self = m_new_obj(bleio_uuid_obj_t);
     self->base.type = type;
diff --git a/shared-bindings/socket/__init__.c b/shared-bindings/socket/__init__.c
index d860c40c8..29d47de56 100644
--- a/shared-bindings/socket/__init__.c
+++ b/shared-bindings/socket/__init__.c
@@ -39,20 +39,20 @@
 
 //| :mod:`socket` --- TCP, UDP and RAW socket support
 //| =================================================
-//| 
+//|
 //| .. module:: socket
 //|   :synopsis: TCP, UDP and RAW sockets
 //|   :platform: SAMD21, SAMD51
 //|
 //| Create TCP, UDP and RAW sockets for communicating over the Internet.
-//|   
+//|
 
 STATIC const mp_obj_type_t socket_type;
 
 //| .. currentmodule:: socket
 //|
 //| .. class:: socket(family, type, proto, ...)
-//|   
+//|
 //|   Create a new socket
 //|
 //|   :param ~int family: AF_INET or AF_INET6
@@ -60,8 +60,8 @@ STATIC const mp_obj_type_t socket_type;
 //|   :param ~int proto: IPPROTO_TCP, IPPROTO_UDP or IPPROTO_RAW (ignored)
 //|
 
-STATIC mp_obj_t socket_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
-    mp_arg_check_num(n_args, n_kw, 0, 4, false);
+STATIC mp_obj_t socket_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
+    mp_arg_check_num(n_args, kw_args, 0, 4, false);
 
     // create socket object (not bound to any NIC yet)
     mod_network_socket_obj_t *s = m_new_obj_with_finaliser(mod_network_socket_obj_t);
@@ -245,8 +245,8 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_send_obj, socket_send);
 //|   Reads some bytes from the connected remote address.
 //|   Suits sockets of type SOCK_STREAM
 //|   Returns a bytes() of length <= bufsize
-//| 
-//|   :param ~int bufsize: maximum number of bytes to receive  
+//|
+//|   :param ~int bufsize: maximum number of bytes to receive
 
 STATIC mp_obj_t socket_recv(mp_obj_t self_in, mp_obj_t len_in) {
     mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(self_in);
@@ -313,7 +313,7 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_3(socket_sendto_obj, socket_sendto);
 //|   * a bytes() of length <= bufsize
 //|   * a remote_address, which is a tuple of ip address and port number
 //|
-//|   :param ~int bufsize: maximum number of bytes to receive  
+//|   :param ~int bufsize: maximum number of bytes to receive
 //|
 
 STATIC mp_obj_t socket_recvfrom(mp_obj_t self_in, mp_obj_t len_in) {
@@ -469,10 +469,10 @@ STATIC const mp_obj_type_t socket_type = {
 };
 
 //| .. function:: getaddrinfo(host, port)
-//| 
+//|
 //|   Gets the address information for a hostname and port
 //|
-//|   Returns the appropriate family, socket type, socket protocol and 
+//|   Returns the appropriate family, socket type, socket protocol and
 //|   address information to call socket.socket() and socket.connect() with,
 //|   as a tuple.
 //|
diff --git a/shared-bindings/wiznet/wiznet5k.c b/shared-bindings/wiznet/wiznet5k.c
index 4e5fff869..6d43e8992 100644
--- a/shared-bindings/wiznet/wiznet5k.c
+++ b/shared-bindings/wiznet/wiznet5k.c
@@ -46,22 +46,22 @@
 #include "shared-module/wiznet/wiznet5k.h"
 
 //| .. currentmodule:: wiznet
-//| 
+//|
 //| :class:`WIZNET5K` -- wrapper for Wiznet 5500 Ethernet interface
 //| ===============================================================
 //|
 //| .. class:: WIZNET5K(spi, cs, rst)
 //|
 //|   Create a new WIZNET5500 interface using the specified pins
-//|   
+//|
 //|   :param spi: spi bus to use
 //|   :param cs: pin to use for Chip Select
-//|   :param rst: pin to sue for Reset 
+//|   :param rst: pin to sue for Reset
 //|
 
-STATIC mp_obj_t wiznet5k_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
+STATIC mp_obj_t wiznet5k_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
     // check arguments
-    mp_arg_check_num(n_args, n_kw, 3, 3, false);
+    mp_arg_check_num(n_args, kw_args, 3, 3, false);
 
     return wiznet5k_create(args[0], args[1], args[2]);
 }