Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/
Find a file
wangjianyu3 a07a6a00f4 video: add V4L2_PIX_FMT_RGB565X pixel format support
Add big-endian RGB565 (RGB565X) pixel format throughout the V4L2
video pipeline:
- IMGDATA_PIX_FMT_RGB565X in imgdata.h
- IMGSENSOR_PIX_FMT_RGB565X in imgsensor.h
- Format conversion and buffer size handling in v4l2_cap.c

This is needed by 8-bit DVP camera sensors that output RGB565 in
big-endian byte order (high byte first on the data bus).

Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
2026-03-16 17:26:27 -03:00
.github build(deps): bump docker/build-push-action from 6 to 7 2026-03-09 08:55:41 +01:00
arch arch/arm/src/nuc1xx: CMake build implemented for NuMicro NUC100 Series 2026-03-16 16:11:07 -04:00
audio Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
binfmt Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
boards boards/arm/mx8mp: CMake added nutiny-nuc120 board 2026-03-16 16:11:07 -04:00
cmake libc: add support for C23 stdbit.h with bit manipulation macros 2026-03-02 09:09:40 -03:00
crypto Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
Documentation arch/risc-v/k210: Add sysctl driver for clock and reset control 2026-03-16 17:03:41 +01:00
drivers video: add V4L2_PIX_FMT_RGB565X pixel format support 2026-03-16 17:26:27 -03:00
dummy
fs fs/mnemofs: Add portable bit primitives and cleanup hash functions 2026-03-11 15:07:43 -03:00
graphics Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
include video: add V4L2_PIX_FMT_RGB565X pixel format support 2026-03-16 17:26:27 -03:00
libs libs/libc: add configurable skip count for mutex backtrace addresses 2026-02-27 19:54:37 +08:00
mm mm: Fix Kconfig style 2026-03-12 09:08:18 +08:00
net netdev/netdev_ioctl: log in hex mode for ioctl cmd 2026-03-03 15:58:03 -03:00
openamp openamp: add patch for VIRTIO_RPMSG_F_BUFADDR buffer address support 2026-03-05 12:39:13 +08:00
pass1 Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
sched sched/critmon: Fix CPU load stats incorrect when using SCHED_CPULOAD_CRITMONITOR 2026-03-03 11:54:20 -05:00
syscall Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
tools arch/tricore: support tc4evb board. 2026-03-10 10:38:19 +01:00
video Makefile: Remove make depend files by make distclean 2026-02-16 16:27:57 +01:00
wireless drivers/net: remove nxsig_notification when signal support is disabled 2026-02-26 20:03:05 +08:00
.asf.yaml github: master branch protection tune. 2025-05-07 18:37:13 -05:00
.codespell-ignore-lines net/icmpv6: replace net_lock with conn_lock and conn_lock_dev 2025-12-29 09:42:18 +08:00
.codespellrc codespellrc: add ist to ignorelist 2025-10-14 17:42:01 +08:00
.editorconfig .editorconfig: fix character encoding property specification 2025-11-28 19:12:13 +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
AUTHORS AUTHORS: add Donny Jiuzhu 2026-02-25 10:17:40 +01:00
CMakeLists.txt cmake: Enhance .config handling and comparison logic 2026-02-26 09:46:02 -03:00
CONTRIBUTING.md doc: Contributing Guide updates. 2026-02-19 12:11:14 -05:00
INVIOLABLES.md
Kconfig libc: add support for C23 stdbit.h with bit manipulation macros 2026-03-02 09:09:40 -03:00
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
README.md
ReleaseNotes

POSIX Badge License Issues Tracking Badge Contributors GitHub Build Badge Documentation Badge

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.