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jingfei d12cf1cb75 drivers/fs:Always use register_mtddriver() to register the MTD device.
We have adjusted the registration method for MTD devices
in nuttx/boards, replacing the previous approach using
ftl_initialize() and bchdev_register() with
register_mtddriver().

When registering MTD devices via register_mtddriver(),
FTL and BCH wrappers will be added during the open() process:

1. Character Device Mode:
   When accessing the MTD device node via the open() interface,
   the device will be automatically converted to a character
   device. Both FTL and BCH wrappers will be implicitly added,
   provided that BCH support is enabled in the configuration.

2. Block Device Mode:
   When accessing the MTD device node via open_blockdriver(),
   the device will be treated as a block device, with only
   the FTL wrapper automatically applied.

Due to the automatic wrapping of MTD devices during the
open() process, the legacy registration methods
ftl_initialize() and bchdev_register() are no longer
required for MTD device registration for user code and should
be used only internally within fs and driver code.

Signed-off-by: jingfei <jingfei@xiaomi.com>
2025-07-16 14:11:41 +08:00
.github [CI] build.yml: fix ERROR: Dangerous symbolic link path was ignored 2025-07-12 16:12:22 -03:00
arch imx95: eDMA5 Allow sharing with Linux 2025-07-16 01:19:05 +08:00
audio fs/file: unify prefix about file_xxx api, like file_open, file_ioctl 2025-06-12 18:12:42 +08:00
binfmt libc/elf: rename modlib to libelf 2025-04-11 09:43:22 +08:00
boards drivers/fs:Always use register_mtddriver() to register the MTD device. 2025-07-16 14:11:41 +08:00
cmake cmake: enhance the function of cmake nuttx_wildcard_sources 2025-07-14 20:41:12 +08:00
crypto fs/vfs: Separate file descriptors from file descriptions 2025-06-12 18:12:42 +08:00
Documentation documentation: update MCUBoot docs for local update agent example 2025-07-16 09:12:41 +08:00
drivers drivers/input: Create Single Button Multi Actions 2025-07-15 18:39:59 -03:00
dummy build: add initial cmake build system 2023-07-08 13:50:48 +08:00
fs fs/block_proxy: fix the issue of the refs count for filep being zeroed out by utilizing dup2 2025-07-15 19:46:24 +08:00
graphics style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
include drivers/input: Create Single Button Multi Actions 2025-07-15 18:39:59 -03:00
libs libc/idr: Remove nodes from RB trees during destroy 2025-07-12 14:24:32 +08:00
mm kasan watchpoint: Fix judgment problem 2025-07-01 09:04:03 -03:00
net net/arp: reducing unnecessary ARP requests can mitigate 2025-07-08 12:43:43 -03:00
openamp style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
pass1 Revert "build depend:Revert Make.dep intermediate ddc file" 2024-09-15 19:29:47 +08:00
sched coredump: Fix missing loglevel to logmask conversion. 2025-07-08 21:14:07 +08:00
syscall sched/gettid: Move thread ID to TLS 2025-04-08 22:53:10 +08:00
tools ci/platforms/windows.ps1: bump risc-v toolchain 2025-07-16 01:16:36 +08:00
video Revert "build depend:Revert Make.dep intermediate ddc file" 2024-09-15 19:29:47 +08:00
wireless Bluetooth SMP: added support for Legacy pairing (MITM) with passkey 2025-05-28 21:49:08 +08:00
.asf.yaml github: master branch protection tune. 2025-05-07 18:37:13 -05:00
.codespell-ignore-lines style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
.codespellrc style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
.gitignore gitignore: add more vim swap files 2025-06-18 15:44:51 -04:00
.gitmessage docs/contributing: Add a commit message template 2025-06-03 17:33:24 +08:00
.pre-commit-config.yaml pre-commit: enable codespell checks 2025-05-05 12:34:39 +08:00
.yamllint feat: add a GitHub action to lint the YAML files 2020-12-15 09:52:04 -06:00
AUTHORS AUTHORS: add Simone Falsetti 2025-07-15 15:12:44 -03:00
CMakeLists.txt style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
CONTRIBUTING.md style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
INVIOLABLES.md INVIOLABLES.md: Fix a simple alignment and change occurrences of Nuttx 2020-09-03 01:33:05 +08:00
Kconfig debug/0 address: Add 0 address access panic configuration 2025-06-26 19:25:31 +08:00
LICENSE style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
Makefile tools: migrate to SPDX identifier 2024-09-10 23:11:11 +08:00
NOTICE Remove the double blank line from source files 2022-02-20 20:10:14 +01:00
README.md Gathering community recommendations 2023-10-28 13:55:56 +08:00
ReleaseNotes Documentation: move ReleaseNotes 2023-09-26 20:41:00 +08:00

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Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).

For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.

Getting Started

First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.

Documentation

You can find the current NuttX documentation on the Documentation Page.

Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.

The old NuttX documentation is still available in the Apache wiki.

Supported Boards

NuttX supports a wide variety of platforms. See the full list on the Supported Platforms page.

Contributing

If you wish to contribute to the NuttX project, read the Contributing guidelines for information on Git usage, coding standard, workflow and the NuttX principles.

License

The code in this repository is under either the Apache 2 license, or a license compatible with the Apache 2 license. See the License Page for more information.