From 282b86c14d43d30b7284c776fb17863a5d8fe296 Mon Sep 17 00:00:00 2001
From: Hydra <dominic.clifton@cleanflight.com>
Date: Wed, 21 Dec 2016 22:09:35 +0000
Subject: [PATCH] Allow targets to use 1 or two buttons.

---
 src/main/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main/main.c b/src/main/main.c
index 5fdebc012..7b40976ee 100644
--- a/src/main/main.c
+++ b/src/main/main.c
@@ -196,13 +196,17 @@ void init(void)
 #endif
 
 #if defined(BUTTONS)
+#ifdef BUTTON_A_PIN
     IO_t buttonAPin = IOGetByTag(IO_TAG(BUTTON_A_PIN));
     IOInit(buttonAPin, OWNER_SYSTEM, 0);
     IOConfigGPIO(buttonAPin, IOCFG_IPU);
+#endif
 
+#ifdef BUTTON_B_PIN
     IO_t buttonBPin = IOGetByTag(IO_TAG(BUTTON_B_PIN));
     IOInit(buttonBPin, OWNER_SYSTEM, 0);
     IOConfigGPIO(buttonBPin, IOCFG_IPU);
+#endif
 
     // Check status of bind plug and exit if not active
     delayMicroseconds(10);  // allow configuration to settle