USB Power Delivery: Protocol and Interactions¶

An introduction to USB Power Delivery negotiation, messages, roles, and common workflows.

This English edition retains the original diagrams and practical code or command examples.

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Commands and examples¶

This article is a conceptual reference; review the hardware documentation for platform-specific details.

Practical notes¶

Validate pin multiplexing, clocks, power sequencing, kernel configuration, and device-tree bindings on the target board before drawing conclusions from a test result.