| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _LINUX_CRC_CCITT_H |
| 2 | #define _LINUX_CRC_CCITT_H |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #endif /* _LINUX_CRC_CCITT_H */ |