From 3c58bce0533a1a3c0403a2ec9081d0b375a69e08 Mon Sep 17 00:00:00 2001
From: Jean-Francois Penven <Jean-Francois.Penven@silabs.com>
Date: Wed, 6 Jul 2022 17:28:48 +0000
Subject: [PATCH] Pull request #9: Update QRCode method

Merge in WMN_TOOLS/matter from fix_ci to silabs

Squashed commit of the following:

commit 784b59e8e9a20c4fb89266d8a06391a0bbb5640f
Author: jepenven-silabs <jean-francois.penven@silabs.com>
Date:   Tue Jul 5 14:33:59 2022 -0400

    Update QRCode method
---
 silabs_examples/template/efr32/src/AppTask.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/silabs_examples/template/efr32/src/AppTask.cpp b/silabs_examples/template/efr32/src/AppTask.cpp
index cc8dd6d6c7d6cd..74f2c429e6ddb1 100644
--- a/silabs_examples/template/efr32/src/AppTask.cpp
+++ b/silabs_examples/template/efr32/src/AppTask.cpp
@@ -275,11 +275,13 @@ CHIP_ERROR AppTask::Init()
 
 // Print setup info on LCD if available
 #ifdef DISPLAY_ENABLED
-    std::string QRCode;
+    // Create buffer for QR code that can fit max size and null terminator.
+    char qrCodeBuffer[chip::QRCodeBasicSetupPayloadGenerator::kMaxQRCodeBase38RepresentationLength + 1];
+    chip::MutableCharSpan QRCode(qrCodeBuffer);
 
     if (GetQRCode(QRCode, chip::RendezvousInformationFlags(chip::RendezvousInformationFlag::kBLE)) == CHIP_NO_ERROR)
     {
-        LCDWriteQRCode((uint8_t *) QRCode.c_str());
+        LCDWriteQRCode((uint8_t *) QRCode.data());
     }
     else
     {