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ed6ce67a2c
Crc7 is used to compute mmc spi command packet checksum. Copy from linux-2.6 lib/crc7.c include/linux/crc7.h commit ad241528c4919505afccb022acbab3eeb0db4d80 Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
15 lines
272 B
C
15 lines
272 B
C
#ifndef _LINUX_CRC7_H
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#define _LINUX_CRC7_H
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#include <linux/types.h>
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extern const u8 crc7_syndrome_table[256];
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static inline u8 crc7_byte(u8 crc, u8 data)
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{
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return crc7_syndrome_table[(crc << 1) ^ data];
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}
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extern u8 crc7(u8 crc, const u8 *buffer, size_t len);
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#endif
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