[deliverable/linux.git] / include / linux / crc-ccitt.h

#ifndef _LINUX_CRC_CCITT_H
#define _LINUX_CRC_CCITT_H

#include <linux/types.h>

extern u16 const crc_ccitt_table[256];

extern u16 crc_ccitt(u16 crc, const u8 *buffer, size_t len);

static inline u16 crc_ccitt_byte(u16 crc, const u8 c)
{
	return (crc >> 8) ^ crc_ccitt_table[(crc ^ c) & 0xff];
}

#endif /* _LINUX_CRC_CCITT_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_CRC_CCITT_H
1da177e4 LT	2	#define _LINUX_CRC_CCITT_H
1da177e4 LT	3
	4	#include <linux/types.h>
	5
	6	extern u16 const crc_ccitt_table[256];
	7
	8	extern u16 crc_ccitt(u16 crc, const u8 *buffer, size_t len);
	9
	10	static inline u16 crc_ccitt_byte(u16 crc, const u8 c)
	11	{
	12	return (crc >> 8) ^ crc_ccitt_table[(crc ^ c) & 0xff];
	13	}
	14
1da177e4	15	#endif /* _LINUX_CRC_CCITT_H */