X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/071e02c6b6b4837fa9cf0b6d4c749994e02638d7..d41cd9a41aca81eaa21e65e6c53672fe604fa3d5:/LUFA/Drivers/Peripheral/TWI.c

diff --git a/LUFA/Drivers/Peripheral/TWI.c b/LUFA/Drivers/Peripheral/TWI.c
index bd6e85384..a0fe44bc1 100644
--- a/LUFA/Drivers/Peripheral/TWI.c
+++ b/LUFA/Drivers/Peripheral/TWI.c
@@ -1,20 +1,21 @@
 /*
      Copyright (C) Dean Camera, 2010.
-              
+
   dean [at] fourwalledcubicle [dot] com
-      www.fourwalledcubicle.com
+           www.lufa-lib.org
 */
 
 #include "TWI.h"
 
-bool TWI_StartTransmission(uint8_t SlaveAddress, uint8_t TimeoutMS)
+bool TWI_StartTransmission(const uint8_t SlaveAddress,
+                           const uint8_t TimeoutMS)
 {
 	for (;;)
 	{
 		bool     BusCaptured = false;
 		uint16_t TimeoutRemaining;
 
-		TWCR = ((1 << TWINT) | (1 << TWSTA) | (1 << TWEN));	
+		TWCR = ((1 << TWINT) | (1 << TWSTA) | (1 << TWEN));
 
 		TimeoutRemaining = (TimeoutMS * 100);
 		while (TimeoutRemaining-- && !(BusCaptured))
@@ -28,35 +29,35 @@ bool TWI_StartTransmission(uint8_t SlaveAddress, uint8_t TimeoutMS)
 						BusCaptured = true;
 						break;
 					case TW_MT_ARB_LOST:
-						TWCR = ((1 << TWINT) | (1 << TWSTA) | (1 << TWEN));	
+						TWCR = ((1 << TWINT) | (1 << TWSTA) | (1 << TWEN));
 						continue;
 					default:
 						TWCR = (1 << TWEN);
 						return false;
 				}
 			}
-			
+
 			_delay_us(10);
 		}
-		
+
 		if (!(BusCaptured))
 		{
 			TWCR = (1 << TWEN);
 			return false;
 		}
-		
+
 		TWDR = SlaveAddress;
 		TWCR = ((1 << TWINT) | (1 << TWEN));
-		
+
 		TimeoutRemaining = (TimeoutMS * 100);
 		while (TimeoutRemaining--)
 		{
 			if (TWCR & (1 << TWINT))
 			  break;
-			  
+
 			_delay_us(10);
 		}
-		
+
 		if (!(TimeoutRemaining))
 		  return false;
 
@@ -71,3 +72,4 @@ bool TWI_StartTransmission(uint8_t SlaveAddress, uint8_t TimeoutMS)
 		}
 	}
 }
+