From 41d370fb2870dbb363348e2da5f4969835473291 Mon Sep 17 00:00:00 2001
From: ficeto <ficeto@Hristos-Mac-mini-2.local>
Date: Mon, 11 May 2015 22:29:02 +0300
Subject: [PATCH] Add option to select SPI speed at SD::begin

---
 libraries/SD/src/SD.cpp | 4 ++--
 libraries/SD/src/SD.h   | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/libraries/SD/src/SD.cpp b/libraries/SD/src/SD.cpp
index 65d32741c..1d42e3738 100644
--- a/libraries/SD/src/SD.cpp
+++ b/libraries/SD/src/SD.cpp
@@ -332,7 +332,7 @@ boolean callback_rmdir(SdFile& parentDir, char *filePathComponent,
 
 
 
-boolean SDClass::begin(uint8_t csPin) {
+boolean SDClass::begin(uint8_t csPin, uint32_t speed) {
   /*
 
     Performs the initialisation required by the sdfatlib library.
@@ -340,7 +340,7 @@ boolean SDClass::begin(uint8_t csPin) {
     Return true if initialization succeeds, false otherwise.
 
    */
-  return card.init(SPI_HALF_SPEED, csPin) &&
+  return card.init(speed, csPin) &&
          volume.init(card) &&
          root.openRoot(volume);
 }
diff --git a/libraries/SD/src/SD.h b/libraries/SD/src/SD.h
index 7435cf577..6ba08b21b 100644
--- a/libraries/SD/src/SD.h
+++ b/libraries/SD/src/SD.h
@@ -65,7 +65,7 @@ private:
 public:
   // This needs to be called to set up the connection to the SD card
   // before other methods are used.
-  boolean begin(uint8_t csPin = SD_CHIP_SELECT_PIN);
+  boolean begin(uint8_t csPin = SD_CHIP_SELECT_PIN, uint32_t speed = SPI_HALF_SPEED);
   
   // Open the specified file/directory with the supplied mode (e.g. read or
   // write, etc). Returns a File object for interacting with the file.