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WIP docs: Add skeleton for GitHub Actions workflow to build docs
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‎.github/workflows/docs.yml‎

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name: Build and Deploy Documentation
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on:
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# Build preview documentation for pull requests
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pull_request:
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# Build and deploy documentation for master branch
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push:
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branches:
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- master
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jobs:
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build-docs:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v5
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- name: Set up Python
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uses: actions/setup-python@v5
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with:
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python-version: '3.12'
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- name: Install system dependencies
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run: |
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sudo apt-get update
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sudo apt-get install -y doxygen graphviz
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- name: Install Python dependencies
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working-directory: docs
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run: |
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pip install -r requirements.txt
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- name: Build documentation
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working-directory: docs
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run: |
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chmod +x build_docs.sh
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./build_docs.sh
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- name: Upload documentation artifacts
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uses: actions/upload-artifact@v4
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with:
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name: docs
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path: |
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docs/_build
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!docs/_build/.doctrees
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deploy-docs:
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needs: build-docs
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runs-on: ubuntu-latest
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# Set Deploy environment for master branch, otherwise set Preview environment
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environment: ${{ github.ref_name == 'master' && 'esp-docs deploy' || 'esp-docs preview' }}
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steps:
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- uses: actions/checkout@v5
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- uses: actions/download-artifact@v4
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with:
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name: docs
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# Todo: write deploy job
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# This will be implemented when deployment configuration is ready
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- name: Deploy documentation
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run: |
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echo "Deployment will be configured here"
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# ./deploy.sh

‎docs/Doxyfile‎

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# SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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#
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# SPDX-License-Identifier: Apache-2.0
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# Doxygen configuration for ESP-USB API documentation
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PROJECT_NAME = "ESP-USB"
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PROJECT_BRIEF = "ESP-IDF USB Host and Device Drivers"
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## The 'INPUT' statement below is used as input by script 'gen-df-input.py'
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## to automatically generate API reference list files header_file.inc
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## These files are placed in '_inc' directory
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## and used to include in API reference documentation
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INPUT = \
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$(PROJECT_PATH)/host/usb/include/usb/usb_host.h \
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$(PROJECT_PATH)/device/esp_tinyusb/include/tinyusb.h
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WARN_NO_PARAMDOC = YES
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## Enable preprocessing and remove __attribute__(...) expressions from the INPUT files
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##
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ENABLE_PREPROCESSING = YES
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MACRO_EXPANSION = YES
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EXPAND_ONLY_PREDEF = YES
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PREDEFINED = \
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$(ENV_DOXYGEN_DEFINES)
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## Do not complain about not having dot
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##
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HAVE_DOT = NO
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## Generate XML that is required for Breathe
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##
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GENERATE_XML = YES
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XML_OUTPUT = xml
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GENERATE_HTML = NO
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HAVE_DOT = NO
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GENERATE_LATEX = NO
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GENERATE_MAN = YES
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GENERATE_RTF = NO
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## Skip distracting progress messages
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##
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QUIET = YES

‎docs/README.md‎

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# ESP-USB Documentation
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This folder contains the ESP-Docs scaffolding for ESP-USB documentation.
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## Structure
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- `conf_common.py` - Common configuration for all languages
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- `en/` - English documentation source files
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- `conf.py` - English-specific configuration
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- `index.rst` - Main documentation index
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- `_static/` - Static files (CSS, JS, images)
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- `docs_version.js` - Target and version selector configuration
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- `Doxyfile` - Doxygen configuration file
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- `requirements.txt` - Python dependencies for building documentation
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- `build_docs.sh` - Build script for documentation
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## Building Documentation
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### Prerequisites
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1. **Python 3.7 or newer**
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2. **Doxygen** - Install via system package manager:
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- Ubuntu/Debian: `sudo apt-get install doxygen graphviz`
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- macOS: `brew install doxygen graphviz`
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- Windows: Download from [Doxygen website](https://www.doxygen.nl/download.html)
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### Build Steps
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To build the documentation locally:
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```bash
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cd docs
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pip install -r requirements.txt
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./build_docs.sh
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```
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The built documentation will be in `docs/_build/`.
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## Adding Documentation Content
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1. Add reStructuredText (`.rst`) files to `docs/en/`
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2. Update `docs/en/index.rst` to include new pages in the table of contents
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3. For API documentation, ensure header files are included in `Doxyfile` INPUT paths
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## Existing Documentation
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The following folders contain existing markdown documentation that can be migrated to reStructuredText format:
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- `device/` - Device-related documentation
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- `host/` - Host-related documentation

‎docs/_static/docs_version.js‎

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// SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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//
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// SPDX-License-Identifier: Apache-2.0
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var DOCUMENTATION_VERSIONS = {
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DEFAULTS: { has_targets: true,
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supported_targets: [ "esp32s2", "esp32s3", "esp32p4", "esp32h4" ]
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},
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IDF_TARGETS: [
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{ text: "ESP32-S2", value: "esp32s2" },
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{ text: "ESP32-S3", value: "esp32s3" },
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{ text: "ESP32-P4", value: "esp32p4" },
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{ text: "ESP32-H4", value: "esp32h4" }
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]
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};

‎docs/build_docs.sh‎

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#!/bin/bash
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# SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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#
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build-docs -l en --project-path .. -t esp32s2 esp32s3 esp32p4 esp32h4

‎docs/conf_common.py‎

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# SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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#
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# SPDX-License-Identifier: Apache-2.0
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"""
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Common configuration for ESP-USB documentation
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"""
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from esp_docs.conf_docs import * # noqa: F403,F401
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extensions += [ # Needed as a trigger for running doxygen
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'esp_docs.esp_extensions.dummy_build_system',
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'esp_docs.esp_extensions.run_doxygen',
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]
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# Languages supported
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languages = ['en']
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# Project targets (used as URL slugs)
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idf_targets = ['esp32s2', 'esp32s3', 'esp32p4', 'esp32h4']
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# GitHub repository information
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github_repo = 'espressif/esp-usb'
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# Initialize html_context if not already defined
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html_context = {}
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html_context['github_user'] = 'espressif'
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html_context['github_repo'] = 'esp-usb'
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# Static files path
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html_static_path = ['../_static']
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# Project slug for URL
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project_slug = 'esp-usb'
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# Versions URL (relative to HTML root)
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versions_url = '_static/docs_version.js'
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# PDF file prefix
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pdf_file_prefix = u'esp-usb'

‎docs/en/api-reference/index.rst‎

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.. SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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..
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.. SPDX-License-Identifier: Apache-2.0
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API Reference
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=============
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This section contains the API reference documentation generated from the source code.
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.. note::
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API documentation will be generated from header files using Doxygen.

‎docs/en/conf.py‎

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# SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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# SPDX-License-Identifier: Apache-2.0
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# -*- coding: utf-8 -*-
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#
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# English Language RTD & Sphinx config file
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#
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# Uses ../conf_common.py for most non-language-specific settings.
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# Importing conf_common adds all the non-language-specific
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# parts to this conf module
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try:
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from conf_common import * # noqa: F403,F401
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except ImportError:
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import os
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import sys
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sys.path.insert(0, os.path.abspath('../'))
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from conf_common import * # noqa: F403,F401
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# General information about the project.
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project = u'ESP-USB Programming Guide'
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copyright = u'2025 Espressif Systems (Shanghai) CO LTD'
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author = u'Espressif Systems'
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pdf_title = u'ESP-USB Programming Guide'
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# The language for content autogenerated by Sphinx. Refer to documentation
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# for a list of supported languages.
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language = 'en'

‎docs/en/index.rst‎

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.. SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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..
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.. SPDX-License-Identifier: Apache-2.0
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ESP-USB Programming Guide
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==========================
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Welcome to the ESP-USB Programming Guide.
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.. toctree::
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:maxdepth: 2
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:caption: Contents:
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introduction
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.. toctree::
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:maxdepth: 1
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:caption: API Reference
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api-reference/index

‎docs/en/introduction.rst‎

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.. SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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..
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.. SPDX-License-Identifier: Apache-2.0
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Introduction
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============
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ESP-USB is a repository containing ESP-IDF USB host and device class drivers
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which have been separated and uploaded into IDF Component Manager.
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This documentation will be expanded with detailed information about:
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* USB Host Library
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* USB Device Drivers
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* USB Class Drivers (CDC, HID, MSC, UAC, UVC)
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* API Reference
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* Examples and Usage

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