The documentation grew one page at a time, so the tree follows the
history of who wrote what and not the shape of NuttX. Scheduling is
spread over three places, a driver page can sit above the subsystem
that owns it, and the front page lists everything at the same level.
That is a lot to face when all you want to know is where the scheduler
lives.
This change files every page under the code it describes. It is a move,
not a rewrite: outside the ten pages named below, every page keeps the
text that is already in master, and no page's text is deleted.
What it does:
* Groups the table of contents into nine chapters.
* Moves the OS subsystems under os/: scheduling, memory, drivers,
filesystem, networking, IPC, interrupts, libs, time.
* Renames the platform pages to the names the source tree uses, and
derives their tags from the tree instead of by hand.
* Splits guides/ by subject.
* Adds Documentation/redirects.py, with a rule for every page that left
its old path, so old URLs keep working. The redirect page also carries
a link's #anchor across to the new page.
Ten pages have text that is new or rewritten. Nine of them are the
landing page of a chapter, which has to exist for the new structure:
index the front page
os/index OS Design
os/scheduling/index Scheduling
os/interrupts/index Interrupts
os/ipc/index IPC
os/time/index Time and timers
about/index About
developing/index Developing NuttX
ReleaseNotes/index Release notes
The tenth is os/libs/libbuiltin, the only page here with technical
content: libs/libbuiltin/ had no page at all. Five SVG diagrams come
with these pages, hand-written XML with no editor metadata.
Nothing outside Documentation/ is touched.
How it was checked:
* Sphinx builds with -W: no warnings, and no document left outside a
toctree.
* A script, offered in the PR, proves the narrow claim this rests on.
For every page outside the ten named above it erases what a move
touches -- link target, path, tag line, toctree block, table border --
from the whole old text and the whole new text, and requires the two
to be byte for byte identical. It also requires every sentence of a
deleted page to turn up somewhere, and every page that left its old
path to have a redirect, from a URL that existed, to where its content
went. It exits non-zero and names the page if any of that is not true,
and it tests added pages too, so forgetting to declare one cannot make
it pass.
* An independent audit checked 133 factual claims on these ten pages
against the tree, one shell command per claim: 130 confirmed, 1
refuted and fixed here, 2 not checkable.
* tools/checkpatch.sh is clean over the range.
The diff is large because moving a page changes every link that points
to it. Most of it is pure renames, and board pages that gained one tag
line.
Assisted-by: Claude:claude-opus-5
Document -I, -d, -x and -n, the operators the tool now registers from
the model, how outputs and inputs are handled, and a hostfs example
that runs the hello-world sine model from NSH.
Signed-off-by: Abhishek Mishra <mishra.abhishek2808@gmail.com>
The tflm tool registered DEPTHWISE_CONV_2D in nuttx-apps#3773, but the
docs still listed eight operators. Document the unused -C compile path,
that the sim helper uses heap I/O, and the pinned TFLM/CMSIS/NNABLA
versions. Add missing gemmlowp, KissFFT, Ruy, and FlatBuffers pages,
document the AI-engine character driver, and wire it into CMake.
Signed-off-by: Abhishek Mishra <mishra.abhishek2808@gmail.com>
Add a Testing section for sim:tflm and document Makefile tflm_hello,
AllocateTensors, and generic ops so the in-tree docs match the apps
TFLM changes.
Assisted-by: Cursor:Grok-4.6
Signed-off-by: Abhishek Mishra <mishra.abhishek2808@gmail.com>
The apps tree is apps/mlearning, but documentation lived under the
misspelled mlearing path as title-only stubs. TensorFlow Lite Micro and
standalone CMSIS-NN had no pages.
Rename the directory to mlearning, document each package from the
current Kconfig and build files, and add the sim:tflm board
configuration.
Assisted-by: Cursor:Grok-4.6
Signed-off-by: Abhishek Mishra <mishra.abhishek2808@gmail.com>
