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libraries/SD/examples/ReadWrite/ReadWrite.ino

@@ -1,23 +1,23 @@
 /*
   SD card read/write
- 
- This example shows how to read and write data to and from an SD card file 	
+
+ This example shows how to read and write data to and from an SD card file
  The circuit:
  * SD card attached to SPI bus as follows:
  ** MOSI - pin 11
  ** MISO - pin 12
  ** CLK - pin 13
  ** CS - pin 4
- 
+
  created   Nov 2010
  by David A. Mellis
  modified 9 Apr 2012
  by Tom Igoe
- 
+
  This example code is in the public domain.
- 	 
+
  */
- 
+
 #include <SPI.h>
 #include <SD.h>
 
@@ -25,62 +25,62 @@ File myFile;
 
 void setup()
 {
- // Open serial communications and wait for port to open:
+  // Open serial communications and wait for port to open:
   Serial.begin(9600);
-   while (!Serial) {
+  while (!Serial) {
     ; // wait for serial port to connect. Needed for Leonardo only
   }
 
 
   Serial.print("Initializing SD card...");
   // On the Ethernet Shield, CS is pin 4. It's set as an output by default.
-  // Note that even if it's not used as the CS pin, the hardware SS pin 
-  // (10 on most Arduino boards, 53 on the Mega) must be left as an output 
-  // or the SD library functions will not work. 
-   pinMode(10, OUTPUT);
-   
+  // Note that even if it's not used as the CS pin, the hardware SS pin
+  // (10 on most Arduino boards, 53 on the Mega) must be left as an output
+  // or the SD library functions will not work.
+  pinMode(10, OUTPUT);
+
   if (!SD.begin(4)) {
     Serial.println("initialization failed!");
     return;
   }
   Serial.println("initialization done.");
-  
+
   // open the file. note that only one file can be open at a time,
   // so you have to close this one before opening another.
   myFile = SD.open("test.txt", FILE_WRITE);
-  
+
   // if the file opened okay, write to it:
   if (myFile) {
     Serial.print("Writing to test.txt...");
     myFile.println("testing 1, 2, 3.");
-	// close the file:
+    // close the file:
     myFile.close();
     Serial.println("done.");
   } else {
     // if the file didn't open, print an error:
     Serial.println("error opening test.txt");
   }
-  
+
   // re-open the file for reading:
   myFile = SD.open("test.txt");
   if (myFile) {
     Serial.println("test.txt:");
-    
+
     // read from the file until there's nothing else in it:
     while (myFile.available()) {
-    	Serial.write(myFile.read());
+      Serial.write(myFile.read());
     }
     // close the file:
     myFile.close();
   } else {
-  	// if the file didn't open, print an error:
+    // if the file didn't open, print an error:
     Serial.println("error opening test.txt");
   }
 }
 
 void loop()
 {
-	// nothing happens after setup
+  // nothing happens after setup
 }