From 9eaeeb660c7bc0b42e942870845e0e38a60d7ec8 Mon Sep 17 00:00:00 2001
From: Me No Dev <me-no-dev@users.noreply.github.com>
Date: Sun, 22 Sep 2019 09:36:32 +0300
Subject: [PATCH] Change the first argument of SPI::wrteBytes to be const
 (#3242)

fixes: https://github.com/espressif/arduino-esp32/issues/3241
---
 libraries/SPI/src/SPI.cpp | 2 +-
 libraries/SPI/src/SPI.h   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libraries/SPI/src/SPI.cpp b/libraries/SPI/src/SPI.cpp
index 7891c416..7f297757 100644
--- a/libraries/SPI/src/SPI.cpp
+++ b/libraries/SPI/src/SPI.cpp
@@ -204,7 +204,7 @@ void SPIClass::transferBits(uint32_t data, uint32_t * out, uint8_t bits)
  * @param data uint8_t *
  * @param size uint32_t
  */
-void SPIClass::writeBytes(uint8_t * data, uint32_t size)
+void SPIClass::writeBytes(const uint8_t * data, uint32_t size)
 {
     if(_inTransaction){
         return spiWriteNL(_spi, data, size);
diff --git a/libraries/SPI/src/SPI.h b/libraries/SPI/src/SPI.h
index 6007cce8..e34833bd 100644
--- a/libraries/SPI/src/SPI.h
+++ b/libraries/SPI/src/SPI.h
@@ -76,7 +76,7 @@ public:
     void write(uint8_t data);
     void write16(uint16_t data);
     void write32(uint32_t data);
-    void writeBytes(uint8_t * data, uint32_t size);
+    void writeBytes(const uint8_t * data, uint32_t size);
     void writePixels(const void * data, uint32_t size);//ili9341 compatible
     void writePattern(uint8_t * data, uint8_t size, uint32_t repeat);