This is necessary for support of block devices with >512 byte
blocks, such as most SPI flash parts.
- Enabled support of up to 4096 byte blocks
- Added support for heap-backed buffers using _FS_HEAPBUF
- Necessary to avoid stack overflows
- Avoids over-aggresive allocations of _MAX_SS
- Enabled _FS_TINY to further reduce memory footprint
- Haven't found a downside for this yet except for possible
thread contention
The standard is intentionally vague on if filesystems must
have '.' and '..' entries, allowing filesystems to omit this
concept completely:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/readdir.html
However, the '.' and '..' entries are common on FAT filesystems
and in most other filesystems.
This enables '.' and '..' entries in the FAT filesystem.