The 6 byte logbook entry gets prepended to the profile data. We need to
take this into account when allocating the memory buffer. Under normal
circumstances this shouldn't be a problem, because a single dive is
usually much smaller than the profile ringbuffer. But it's better to be
on the safe side.
The fingerprint is used unconditionally, regardless of whether it's
explicitly set by the application or not. Therefore it needs to be
initialized properly.
The serial number is stored as a plain 32bit integer, and the device
shows the hexadecimal representation. Because a BCD encoding can only
represent the lower digits (0-9) of a hexadecimal number, the upper
digits (A-F) got mangled.
Reported-By: Nick Shore <support@mac-dive.com>