BFE Engineering
d465d97b99
The last product-first artifact after ADR-0008 was the repo name itself. Current and forward-looking references updated; period-bound history in the ADRs keeps the old name, with the rename recorded in ADR-0008. Crate names, WARDEN_* env vars, and binaries are unchanged.
22 lines
1007 B
Markdown
22 lines
1007 B
Markdown
# ADR 0005 — Driver Source of Truth
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**Status:** Accepted (2026-08-25).
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## Context
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Our own hardware-facing driver code (relays, modbus master, RGA wrapper, HPMCU
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supervisor, devmem/reset ladder, freshness) is the Tier-1 MC/DC target, but it
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currently lives in flare-edge. The kernel driver source lives in an un-versioned
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scratch tree (`flare-edge/research/linux-6.18.46/`).
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## Decision
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Bring **hardened copies into this repo's `drivers/`** as the canonical source-of-truth,
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each with its HAL seam and a 100% MC/DC host harness. The RV1106 kernel deltas are
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formalized as a patch series in `patches/`. flare-edge consumes this repo later
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(separate, maintainer-gated step).
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## Consequences
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- Realizes the seam architecture (ADR-referenced in `docs/architecture.md`).
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- flare-edge is not edited now; a later integration step points flare-edge at these.
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- Risk: temporary duplication of shared constants between the two repos until the
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integration lands — tracked, acceptable for the bring-up window.
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