mirror of
https://github.com/torvalds/linux.git
synced 2026-09-25 21:21:09 -04:00
Jan Nikitenko
ad241528c4
Add CRC7 routines, used for example in MMC over SPI communication. Kerneldoc updates [[email protected]: fix funny mix of const and non-const] Signed-off-by: Jan Nikitenko <[email protected]> Signed-off-by: David Brownell <[email protected]> Cc: "Randy.Dunlap" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
15 lines
272 B
C
15 lines
272 B
C
#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
|