X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=crc%2Fcrc7.h;fp=crc%2Fcrc7.h;h=6ff3cd871cc8c1a9cf17e524e5dbc05a7412cbea;hb=eef6eea1b935a67f1ae26b38e06a69d4410a12aa;hp=0000000000000000000000000000000000000000;hpb=546dfd9ff99eec4af5d1c6c2ca702b7cf9656334;p=fio.git

diff --git a/crc/crc7.h b/crc/crc7.h
new file mode 100644
index 00000000..6ff3cd87
--- /dev/null
+++ b/crc/crc7.h
@@ -0,0 +1,13 @@
+#ifndef CRC7_H
+#define CRC7_H
+
+extern const unsigned char crc7_syndrome_table[256];
+
+static inline unsigned char crc7_byte(unsigned char crc, unsigned char data)
+{
+	return crc7_syndrome_table[(crc << 1) ^ data];
+}
+
+extern unsigned char crc7(const unsigned char *buffer, unsigned int len);
+
+#endif