From 8a8c8aa86312840a84533318bff92fdb6c42b8de Mon Sep 17 00:00:00 2001
From: JF <jf@codingfield.com>
Date: Tue, 27 Oct 2020 19:46:51 +0100
Subject: [PATCH] Handle error code when calling TwiMaster::Read().

---
 src/drivers/Cst816s.cpp |  4 +++-
 src/drivers/Cst816s.h   | 14 +++++++-------
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/drivers/Cst816s.cpp b/src/drivers/Cst816s.cpp
index f6816545..94db3b34 100644
--- a/src/drivers/Cst816s.cpp
+++ b/src/drivers/Cst816s.cpp
@@ -37,7 +37,9 @@ void Cst816S::Init() {
 Cst816S::TouchInfos Cst816S::GetTouchInfo() {
   Cst816S::TouchInfos info;
 
-  twiMaster.Read(twiAddress, 0, touchData, 63);
+  auto ret = twiMaster.Read(twiAddress, 0, touchData, 63);
+  if(ret != TwiMaster::ErrorCodes::NoError) return {};
+
   auto nbTouchPoints = touchData[2] & 0x0f;
 
 //  uint8_t i = 0;
diff --git a/src/drivers/Cst816s.h b/src/drivers/Cst816s.h
index b115a688..4569e82f 100644
--- a/src/drivers/Cst816s.h
+++ b/src/drivers/Cst816s.h
@@ -18,13 +18,13 @@ namespace Pinetime {
             LongPress = 0x0C
         };
         struct TouchInfos {
-          uint16_t x;
-          uint16_t y;
-          uint8_t action;
-          uint8_t finger;
-          uint8_t pressure;
-          uint8_t area;
-          Gestures gesture;
+          uint16_t x = 0;
+          uint16_t y = 0;
+          uint8_t action = 0;
+          uint8_t finger = 0;
+          uint8_t pressure = 0;
+          uint8_t area = 0;
+          Gestures gesture = Gestures::None;
           bool isTouch = false;
         };