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pigweed/third_party/github/OpenPRoT/openprot/535ba565cb12e4e0ec7cee56d249d4bdd31011ba/./services/mctp/transport-i2c
tree: 7032851ec803d0bcc1c3017c0050efe7c5c2e670
  1. src/
  2. BUILD.bazel
  3. Cargo.toml
  4. README.md
services/mctp/transport-i2c/README.md

openprot-mctp-transport-i2c

I2C transport binding for the MCTP server, ported from Hubris mctp-server/src/i2c.rs.

Overview

This crate implements MCTP-over-I2C transport. It provides the Sender implementation for outbound packets and a receiver/decoder for inbound I2C target messages. It uses the OpenPRoT services/i2c/ userspace driver as the underlying I2C transport, replacing the Hubris drv_i2c_api::I2cDevice.

Key Types

  • I2cSender<C> — implements mctp_stack::Sender for I2C; handles fragmentation, encoding, and PEC (Packet Error Checking) via mctp_stack::i2c::MctpI2cEncap
  • MctpI2cReceiver — decodes inbound I2C target-mode messages into MCTP packets

Dependencies

  • openprot-mctp-api — API traits
  • openprot-i2c-api — I2cClientBlocking trait for I2C bus access
  • mctp-stack — Sender trait, I2C encapsulation/decapsulation
  • mctp — core MCTP types
  • embedded-hal — hardware abstraction
  • heapless — no_std collections