# HDF / HarmonyOS: mapping driver IPC and Linux userland compatibility

> The HDF / HarmonyOS investigation maps the Driver Foundation's user-to-kernel IPC path and tests selected HarmonyOS libraries on Linux. It records the HDF_WRITE_READ ioctl, HdfWriteReadBuf layout and I2C command IDs, supported by harness code, a kernel stub and QEMU experiment logs.

- Type: Case study
- Targets: Binary · Firmware · Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/kharkilirov1/hdf-harmonyos-reverse>
- Primary source: <https://github.com/kharkilirov1/hdf-harmonyos-reverse/blob/bce8c16862046775ca000f403b1c435719d05f4b/README.md>
- Catalog page: <https://awesomerea.org/resources/hdf-harmonyos-reverse-case/>
- Record JSON: <https://awesomerea.org/resources/hdf-harmonyos-reverse-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/hdf-harmonyos-reverse-case/index.md)

## Requirements & limits

- **Prerequisites:** Reproduction requires user-provided HarmonyOS libraries and image sysroot, a DevEco-compatible clang toolchain and a Linux VM for kernel tests.
- **Limits:** Firmware images, proprietary shared libraries and kernel binaries are not included.
- **License:** HDF Research Viewing License 1.0 permits viewing and study but limits reuse and redistribution.

## Primary sources

1. <https://github.com/kharkilirov1/hdf-harmonyos-reverse/blob/bce8c16862046775ca000f403b1c435719d05f4b/README.md>
2. <https://github.com/kharkilirov1/hdf-harmonyos-reverse/blob/bce8c16862046775ca000f403b1c435719d05f4b/docs/PORT_ABI_README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.