crc16.h File Reference

functions for calculating 16 bit cyclic redundancy codes More...

#include <stddef.h>
#include <stdint.h>

Go to the source code of this file.

Macros
#define	CRC16_INIT   (0xffff)
	initial crc value
#define	CRC16_FINALIZE(val)   (val ^ 0xffff)
	finalize crc value More...

Functions
int	crc16 (uint16_t *crc, const uint8_t *data, size_t size)
	computes the crc for data and uses crc for the result More...

Detailed Description

functions for calculating 16 bit cyclic redundancy codes

Macro Definition Documentation

CRC16_FINALIZE

#define CRC16_FINALIZE

(

val

)

(val ^ 0xffff)

finalize crc value

Parameters

val	an initialized crc value

Returns

a finalized crc value

Function Documentation

crc16()

int crc16	(	uint16_t *	crc,
		const uint8_t *	data,
		size_t	size
	)

computes the crc for data and uses crc for the result

Parameters

crc	pointer to initialized crc value
data	pointer to data over which to calculate crc
size	number of bytes of data

Returns

0 if successful