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

#ifndef _LINUX_CRC_CCITT_H
#define _LINUX_CRC_CCITT_H
#ifdef __KERNEL__

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