From eeb821fa6846e84c9fe3e80d58f41b7a5a418e70 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Wed, 21 Apr 2021 22:27:56 +0800
Subject: [PATCH] update hal.x

---
 iotd/hal/gpio.h |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/iotd/hal/gpio.h b/iotd/hal/gpio.h
index 455960f..6a45e11 100644
--- a/iotd/hal/gpio.h
+++ b/iotd/hal/gpio.h
@@ -41,9 +41,8 @@
 extern int gpio_init(gpio_t *gpio);
 extern void gpio_term(void);
 
-
 /* turn which light on/off */
-void gpio_out(char *name, char *cmd);
+extern void gpio_out(char *name, char *cmd);
 
 /* Return value: 0(LOW): Nobody detected, !0: Which infrared detect incoming */
 extern int infrared_detect(void);

--
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