Following a full repo-wide grep and source review of all quirks
files (mod.rs, pci_table.rs, usb_table.rs, dmi.rs, toml_loader.rs,
pci.rs, i2c-hidd/quirks.rs), this companion to QUIRKS-SYSTEM.md
documents the current ground-truth state of the subsystem as of
2026-06-29.
Findings:
- 11 Rust + 6 C consumers of the redox-driver-sys quirks engine
- 1 separate DMI quirks engine in i2c-hidd (uses RON, not TOML)
- 6 dead-code entry points that return empty flags:
* lookup_pci_quirks_full actions (Vec::new)
* lookup_xhci_controller_quirks_full (stub)
* lookup_hid_quirks (stub)
* load_dmi_acpi_quirks (stub)
* load_platform_dmi_quirks (stub, empty PLATFORM_RULES)
* load_drm_panel_orientation (empty PANEL_ORIENTATION_TABLE)
- 4 PciQuirkFlags bits (22-25) have no entry in PCI_FLAG_NAMES,
so they cannot be set via /etc/quirks.d/*.toml
- DMI is consumed in two incompatible ways:
* redox-driver-sys reads /scheme/acpi/dmi as a flat key=value file
* i2c-hidd reads /scheme/acpi/dmi/{system_vendor,...} as per-field
subpaths, and matches case-insensitive
- redbear-quirks stages 10 TOML files to /etc/quirks.d/; the
TOML layer is fully live (this corrects an earlier claim
that it was dormant)
The audit concludes that the system is correctly initialized and
utilized per its design. No redesign is needed; the existing
QUIRKS-SYSTEM.md is mostly accurate but understates how many
defined functions return empty data and how many flag names
are missing from the TOML schema.
vasilito
7b9552c960