<h1>API 参考文档</h1>
本文档提供 openvela 操作系统的 API 参考，涵盖从内核系统调用到应用框架的完整接口说明。
openvela 基于 Apache NuttX RTOS 构建，遵循 POSIX 标准，支持 ARM、ARM64、RISC-V、x86_64 等多种架构。开发者可通过以下章节查阅各层级的 API 接口：
<ul>
<li><a href="/document?id=1106&version=dev&language=cn">内核接口</a> — 进程/线程管理、任务调度、内存管理、信号机制、消息队列等 POSIX 兼容的系统接口</li>
<li><a href="/document?id=1113&version=dev&language=cn">网络接口</a> — BSD 套接字、DNS 解析等标准网络编程接口</li>
<li><a href="/document?id=1120&version=dev&language=cn">应用框架</a> — Binder IPC、蓝牙、多媒体、安全（TEE + Keystore）、uORB 消息总线等上层能力接口</li>
</ul>

[ English | <a href="https://github.com/open-vela/docs/tree/dev//zh-cn/api/index.md">简体中文</a> ]
<h1>API Reference</h1>
This document provides the API reference for the openvela operating system, covering the complete interface specification from kernel system calls to application frameworks.
openvela is built on Apache NuttX RTOS, follows the POSIX standard, and supports multiple architectures including ARM, ARM64, RISC-V, and x86_64. Developers can refer to the following sections for APIs at each layer:
<ul>
<li><a href="/document?id=1106&version=dev&language=en">Kernel Interfaces</a> — POSIX-compatible system interfaces for process/thread management, task scheduling, memory management, signal mechanisms, message queues, etc.</li>
<li><a href="/document?id=1113&version=dev&language=en">Network Interfaces</a> — Standard network programming interfaces including BSD sockets, DNS resolution, etc.</li>
<li><a href="/document?id=1120&version=dev&language=en">Application Framework</a> — Upper-layer capability interfaces including Binder IPC, Bluetooth, multimedia, security (TEE + Keystore), uORB message bus, etc.</li>
</ul>