#ifndef _LINUX_CRC7_H#define _LINUX_CRC7_H#include <linux/types.h> extern const u8 crc7_syndrome_table[256]; static inline u8 crc7_byte(u8 crc, u8 data){	return crc7_syndrome_table[(crc << 1) ^ data];} extern u8 crc7(u8 crc, const u8 *buffer, size_t len); #endif