From 5d05ff140626c369452f32de841aa1789e490835 Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Tue, 21 Mar 2017 15:28:31 +1100
Subject: [PATCH] esp8266/machine_pin: Fix pin.irq() to work when all args are
 keywords.

---
 esp8266/machine_pin.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esp8266/machine_pin.c b/esp8266/machine_pin.c
index d602bd69f..d4c6d3dea 100644
--- a/esp8266/machine_pin.c
+++ b/esp8266/machine_pin.c
@@ -368,7 +368,7 @@ STATIC mp_obj_t pyb_pin_irq(size_t n_args, const mp_obj_t *pos_args, mp_map_t *k
         nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "pin does not have IRQ capabilities"));
     }
 
-    if (n_args > 1) {
+    if (n_args > 1 || kw_args->used != 0) {
         // configure irq
         mp_obj_t handler = args[ARG_handler].u_obj;
         uint32_t trigger = args[ARG_trigger].u_int;
-- 
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