BFE Engineering
42fb386f60
Replace every em dash with real punctuation (rewrites, not hyphen swaps) in docs, code comments, scripts, configs, and the port records; convert en dashes, curly quotes, ellipsis glyphs, arrows, and section signs to ASCII; drop machine-writing tell phrases from living docs. ADR titles now use a colon. The M2 bring-up DTS model string carried an em dash into the patch series and its record echoes; fixed at both, and the full series re-verified to apply cleanly onto pristine 6.18.46. One comment in freshness.h deliberately names the em dash glyph the UI renders as the unknown mark; that is data, kept as prose naming it. Verified: cargo tests (sim, config-lint, rs485-bridge), shellcheck, both driver MC/DC harnesses, patches-apply.
22 lines
1001 B
Markdown
22 lines
1001 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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