These headers files were missing from the header files that
I added them to; the fact that they were missing didn't
lead to compile errors because by coincidence the missing
headers are included in the source files before including
these headers. But, after the reordering of header inclusions
by Tools/fix_headers.sh, these cases will give rise to compiler
errors.
Opening/seeking/closing the file for each data chunk was extremely
expensive and drastically slowed the download process as the position
in the file increased. Over USB with large files this change + nuttx
update results in ~ 10x speedup for log downloads.
Beat Küng