Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/
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Bowen Wang 5e2b3a114f lib/rpmsg: add priority support for rpmsg endpoint
Add priority field to rpmsg_endpoint structure to support
message prioritization. This allows different endpoints to
have different priority levels for scheduling purposes.

Changes:
- Define priority constants (MIN=0, DEFAULT=127, MAX=255)
- Add RPMSG_PRIO_RT alias for real-time priority
- Add priority field to struct rpmsg_endpoint
- Initialize priority to default value in rpmsg_register_endpoint()

Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
2026-01-30 07:50:11 -03:00
.github sched: Remove legacy sched_resumescheduler.c 2026-01-27 18:21:12 +08:00
arch arch/arm: GPIO IMX9 Add support for IRQ line1 and GPIO5 2026-01-28 21:13:31 +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 sched/task: move kernel stack allocation to task initialization 2026-01-18 23:05:11 +08:00
boards boards/sim/crypto: enable cmocka testing framework 2026-01-29 22:44:24 +08:00
cmake cmake(bugfix):change default compile obj extension to .o 2026-01-27 20:54:26 +08:00
crypto crypto/cryptosoft: Fix HMAC-SHA when a long key is used 2026-01-28 13:14:05 -03:00
Documentation Documentation/rpmsg: add rpmsg_ping documentation 2026-01-30 07:50:11 -03:00
drivers fs/timerfd: implement TFD_TIMER_CANCEL_ON_SET to detect clock changes 2026-01-30 17:20:24 +08:00
dummy
fs fs/timerfd: implement TFD_TIMER_CANCEL_ON_SET to detect clock changes 2026-01-30 17:20:24 +08:00
graphics graphics/nxterm: Use small lock to protect resource in graphics. 2026-01-27 17:59:07 +08:00
include libs/crc: implement AUTOSAR-compatible CRC algorithm 2026-01-30 17:32:15 +08:00
libs libs/crc: implement AUTOSAR-compatible CRC algorithm 2026-01-30 17:32:15 +08:00
mm mm/tlfs: Account initial size of struct mm_heap_s 2026-01-27 21:27:53 +08:00
net net/rpmsg: add err handle when rpmsg_socket_unbind called 2026-01-29 09:15:33 -03:00
openamp lib/rpmsg: add priority support for rpmsg endpoint 2026-01-30 07:50:11 -03:00
pass1 Revert "build depend:Revert Make.dep intermediate ddc file" 2024-09-15 19:29:47 +08:00
sched fs/timerfd: implement TFD_TIMER_CANCEL_ON_SET to detect clock changes 2026-01-30 17:20:24 +08:00
syscall syscall: add sched_note_event_ip syscall for instrumentation dump 2026-01-28 02:06:23 +08:00
tools abi_check.py:Check ABI compatibility between different ELF versions. 2026-01-28 18:32:39 +01:00
video Revert "build depend:Revert Make.dep intermediate ddc file" 2024-09-15 19:29:47 +08:00
wireless net/wireless: fix compile warning 2025-12-25 18:05:33 +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 Michal Lenc 2025-12-03 08:46:33 -03:00
CMakeLists.txt cmake(bugfix):change default compile obj extension to .o 2026-01-27 20:54:26 +08:00
CONTRIBUTING.md style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
INVIOLABLES.md
Kconfig Kconfig: Add ALLOW_CUSTOM_PERMISSIVE_COMPONENTS option 2026-01-20 02:15:19 +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
README.md Gathering community recommendations 2023-10-28 13:55:56 +08:00
ReleaseNotes

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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.