Add class documentation

[HiFiPhile]

This pull request adds new reference documentation for classes, providing detailed guides on configuration, descriptors, APIs, and best practices.

@lbthomsen @karlp Feedback welcomed

[Copilot]

🟢 Ready to approve

The changes are documentation-only, and the referenced configuration symbols/APIs align with existing TinyUSB headers and examples.

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Pull request overview

This pull request restructures and expands TinyUSB’s reference documentation for USB class drivers by replacing the single legacy “class_drivers” page with a dedicated “Class Drivers” section and per-class guides covering configuration, descriptors, APIs/callbacks, and usage notes.

Changes:

• Replaces docs/reference/class_drivers.rst with a new docs/reference/class/ documentation tree (device/host overview + per-class pages).
• Adds a “Class Drivers” index page with a support matrix and toctree for the new class guides.
• Updates the reference index to link to the new class documentation entry point.

File summaries

File	Description
docs/reference/index.rst	Switches reference toctree from the legacy class page to the new class/index entry point.
docs/reference/class/index.rst	New “Class Drivers” landing page: overview, support matrix, and navigation.
docs/reference/class/device.rst	New device-side class usage guide (configuration/descriptors/callbacks overview).
docs/reference/class/host.rst	New host-side class usage guide (async model, sizing, core APIs).
docs/reference/class/audio.rst	Adds Audio class configuration and data-path guide.
docs/reference/class/bluetooth.rst	Adds Bluetooth HCI class configuration and data-path guide.
docs/reference/class/cdc.rst	Adds CDC Serial class guide for device + host usage.
docs/reference/class/dfu.rst	Adds DFU runtime + DFU mode guide with key callbacks and safety notes.
docs/reference/class/hid.rst	Adds HID class guide for device + host usage and sizing.
docs/reference/class/midi.rst	Adds MIDI 1.0/2.0 guides for device + host, including alt-setting behavior.
docs/reference/class/msc.rst	Adds MSC (BOT) guide for device + host, including async I/O notes.
docs/reference/class/mtp.rst	Adds MTP device guide focusing on supported ops/events/contracts.
docs/reference/class/network.rst	Adds USB Network (ECM/RNDIS/NCM) guide with MTU/NTB sizing notes.
docs/reference/class/printer.rst	Adds Printer device guide including control callbacks and data flow.
docs/reference/class/usbtmc.rst	Adds USBTMC/USB488 device guide with callback/message flow.
docs/reference/class/vendor.rst	Adds vendor-specific interface guide (buffered vs direct, optional EPs, host notes).
docs/reference/class/video.rst	Adds UVC device guide with negotiation, payload flow, and callbacks.
docs/reference/class_drivers.rst	Removes the legacy monolithic class-driver page in favor of the new structured section.

Review details

• Files reviewed: 18/18 changed files
• Comments generated: 0
• Review effort level: Lite

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[github-actions]

MemBrowse Memory Report

No memory changes detected across 2503 targets. View Project Dashboard →

[github-actions]

Hardware-in-the-loop (HIL) Test Report

No HIL run for this push (no affected boards, or hardware testing did not run).

[claude]

Code review

No issues found. Checked for bugs and CLAUDE.md compliance.