blob: 90037617da8fedf515b269d8ed766074f55244d0 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _LINUX_CRC_CCITT_H
2#define _LINUX_CRC_CCITT_H
3#ifdef __KERNEL__
4
5#include <linux/types.h>
6
7extern u16 const crc_ccitt_table[256];
8
9extern u16 crc_ccitt(u16 crc, const u8 *buffer, size_t len);
10
11static 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 */