X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/cec699ac591a679010e07431dfb17823a79856df..27eb17cb934dcd3807bacdfe87f853e32f0cfdb4:/LUFA/Drivers/Peripheral/AVRU4U6U7/TWI.h

diff --git a/LUFA/Drivers/Peripheral/AVRU4U6U7/TWI.h b/LUFA/Drivers/Peripheral/AVRU4U6U7/TWI.h
index b4e113373..990b44d14 100644
--- a/LUFA/Drivers/Peripheral/AVRU4U6U7/TWI.h
+++ b/LUFA/Drivers/Peripheral/AVRU4U6U7/TWI.h
@@ -29,6 +29,7 @@
 */
 
 /** \file
+ *  \brief TWI peripheral driver for the U7, U6 and U4 USB AVRs.
  *
  *  Master mode TWI driver for the AT90USB1287, AT90USB1286, AT90USB647, AT90USB646, ATMEGA16U4 and ATMEGA32U4 AVRs.
  *
@@ -39,6 +40,11 @@
 /** \ingroup Group_TWI
  *  @defgroup Group_TWI_AVRU4U6U7 Series U4, U6 and U7 Model TWI Driver
  *
+ *  Master mode TWI driver for the AT90USB1287, AT90USB1286, AT90USB647, AT90USB646, ATMEGA16U4 and ATMEGA32U4 AVRs.
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the TWI driver
+ *        dispatch header located in LUFA/Drivers/Peripheral/TWI.h.
+ *
  *  @{
  */
 
@@ -51,6 +57,7 @@
 		#include <avr/io.h>
 		#include <stdbool.h>
 		#include <util/twi.h>
+		#include <util/delay.h>
 		
 	/* Enable C linkage for C++ Compilers: */
 		#if defined(__cplusplus)
@@ -58,7 +65,7 @@
 		#endif
 
 	/* Preprocessor Checks: */
-		#if !defined(INCLUDE_FROM_TWI_H)
+		#if !defined(__INCLUDE_FROM_TWI_H)
 			#error Do not include this file directly. Include LUFA/Drivers/Peripheral/TWI.h instead.
 		#endif
 
@@ -126,10 +133,11 @@
 			/** Begins a master mode TWI bus communication with the given slave device address.
 			 *
 			 *  \param[in] SlaveAddress  Address of the slave TWI device to communicate with
+			 *  \param[in] TimeoutMS     Timeout period within which the slave must respond, in milliseconds
 			 *
 			 *  \return Boolean true if the device is ready for data, false otherwise
 			 */
-			bool TWI_StartTransmission(uint8_t SlaveAddress);
+			bool TWI_StartTransmission(uint8_t SlaveAddress, uint8_t TimeoutMS);
 
 	/* Disable C linkage for C++ Compilers: */
 		#if defined(__cplusplus)