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punktfunk/packaging/windows/drivers
enricobuehler 3d3dd3627c
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feat(windows-drivers): STEP 3 on-glass — driver LOADS + runs full IddCx init chain
Major on-glass progress on the RTX box. The all-Rust wdk-sys IddCx driver now LOADS
under Secure Boot and runs the ENTIRE init chain: DriverEntry -> WdfDriverCreate ->
driver_add -> IddCxDeviceInitConfig(0x0) -> WdfDeviceCreate -> CreateDeviceInterface
-> IddCxDeviceInitialize -> D0Entry -> init_adapter. Findings:
- Signing was a RED HERRING (the driver loads); std works in WUDFHost (DualSense uses
  it too).
- THE unblock: link the iddcx **1.10** IddCxStub (build.rs now picks the highest
  version-aware), not 1.0 — the 1.0 stub lacks the version-table symbols AND its
  dispatch table mismatched the 1.10 framework, which made IddCxDeviceInitConfig
  return INVALID_PARAMETER. With 1.10 the whole chain runs.
- Added a file/OutputDebugString logger (log.rs, matches the DualSense driver) — the
  driver was silent; this is how the chain was traced.
- size.rs: framework_struct_size() reads the frameworks authoritative struct sizes
  from IddStructures[] (the config keeps size_of=208, validated working).
- adapter.rs: version ptrs + ObjectAttributes(InheritFromParent) + FP16 + framework
  caps/diag/version sizes — matches the oracle.

KNOWN WIP: IddCxAdapterInitAsync still returns INVALID_PARAMETER though caps match
the framework size table (88/56/24) + the oracle exactly — likely a subtle wdk-sys
bindgen field-layout detail in IDDCX_ADAPTER_CAPS/IDDCX_ENDPOINT_DIAGNOSTIC_INFO.
CI gate (compile+link) stays green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-24 17:46:58 +00:00
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