{
  "added_at": "2026-11-08",
  "additional_evidence_urls": [
    "https://github.com/coldwaterkimkim/bose-usb-bridge/blob/0f74d936b50c08529ecddc188e1d2b265a459a20/README.md"
  ],
  "category": "community-case-studies",
  "class": "hardware",
  "description_en": "Bose USB Bridge uses firmware and updater research to select an existing USB audio mode on a guarded SoundLink Flex unit. The macOS LaunchAgent sends scoped USB/HID requests and lets the built-in USB audio stack carry playback; its research notes report REA analysis of the updater and separate CSR filesystem and XAP firmware analysis.",
  "description_zh": "Bose USB Bridge 依据固件和更新器研究，为受设备信息约束的 SoundLink Flex 启用已有 USB 音频模式。macOS LaunchAgent 发送限定的 USB/HID 请求，由系统 USB 音频栈处理播放；研究笔记记录了使用 REA 分析更新器，以及另行解析 CSR 文件系统和 XAP 固件。",
  "entry_url": "https://awesomerea.org/resources/bose-usb-bridge-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/bose-usb-bridge-case/",
  "evidence_url": "https://github.com/coldwaterkimkim/bose-usb-bridge/blob/0f74d936b50c08529ecddc188e1d2b265a459a20/docs/research.md",
  "group": "rea",
  "id": "bose-usb-bridge-case",
  "json_url": "https://awesomerea.org/resources/bose-usb-bridge-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/bose-usb-bridge-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/bose-usb-bridge-case/index.md",
  "name": "Bose USB Bridge: selecting SoundLink Flex USB audio from firmware research",
  "name_zh": "Bose USB Bridge：依据固件研究启用 SoundLink Flex USB 音频",
  "record_type": "resource",
  "relationship": "community-reported-mixed-workflow",
  "requirement_facets": [
    "prerequisites",
    "scope",
    "testing",
    "license"
  ],
  "requirements": [
    "macOS 14 or later and a data capable USB-C cable; a source build needs Swift 5.9 and Xcode Command Line Tools.",
    "The enabled device guard requires minnow with firmware metadata Main 1.0.20.; the physical generation is unconfirmed.",
    "The author reports acoustic playback on one tested unit; Intel Macs and other SoundLink Flex generations remain unvalidated.",
    "MIT license."
  ],
  "requirements_zh": [
    "需要 macOS 14 或更高版本及可传输数据的 USB-C 线；源码构建需要 Swift 5.9 和 Xcode Command Line Tools。",
    "启用条件限定设备标识为 minnow、固件信息为 Main 1.0.20.；实物代际尚未确认。",
    "作者报告在一台设备上确认有声播放；Intel Mac 和其他 SoundLink Flex 代际尚未验证。",
    "MIT 许可证。"
  ],
  "targets": [
    "firmware"
  ],
  "url": "https://github.com/coldwaterkimkim/bose-usb-bridge",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}