From 84be22314470b52e47b240007d44419b201e82e9 Mon Sep 17 00:00:00 2001
From: Alan Carvalho de Assis <acassis@gmail.com>
Date: Sat, 25 Feb 2017 11:56:15 -0600
Subject: [PATCH] STM32: Add function prototype to eliminate a warning.

---
 configs/stm32f103-minimum/src/stm32f103_minimum.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/configs/stm32f103-minimum/src/stm32f103_minimum.h b/configs/stm32f103-minimum/src/stm32f103_minimum.h
index de00b39f62..e0efa01fb1 100644
--- a/configs/stm32f103-minimum/src/stm32f103_minimum.h
+++ b/configs/stm32f103-minimum/src/stm32f103_minimum.h
@@ -152,6 +152,18 @@ int stm32_bringup(void);
 
 void stm32_spidev_initialize(void);
 
+/****************************************************************************
+ * Name: stm32_qencoder_initialize
+ *
+ * Description:
+ *   Initialize and register a qencoder
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_QENCODER
+int stm32_qencoder_initialize(FAR const char *devpath, int timer);
+#endif
+
 /****************************************************************************
  * Name stm32_rgbled_setup
  *