NAME
crc7_be - update the CRC7 for the data buffer
SYNOPSIS
u8 crc7_be(u8 crc, const u8 * buffer, size_t len);
ARGUMENTS
crc
previous CRC7 value
buffer
data pointer
len
number of bytes in the buffer
CONTEXT
any
DESCRIPTION
Returns the updated CRC7 value. The CRC7 is left-aligned in the byte (the lsbit is always 0), as that makes the computation easier, and all callers want it in that form.