diff options
Diffstat (limited to 'kernel/include/linux/crc-ccitt.h')
| -rw-r--r-- | kernel/include/linux/crc-ccitt.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/include/linux/crc-ccitt.h b/kernel/include/linux/crc-ccitt.h new file mode 100644 index 000000000..f52696a1f --- /dev/null +++ b/kernel/include/linux/crc-ccitt.h @@ -0,0 +1,15 @@ +#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 */ |