The flat analog of pci-class for acpi_device nodes. ACPI has no class/subclass/prog-IF
taxonomy — a device's identity is its _HID string itself (PNP0303 *is* "PS/2
keyboard") — so this is a plain id -> name registry, not a hierarchical decoder.
New system/devices/acpi-ids.zig (module `acpi-ids`): the common standard PnP/ACPI
hardware IDs; vendor-specific ids (QEMU0002, etc.) have no registry name and print the
raw HID. Shared reference data like pci-class. The dump now names each _HID:
KBD_ [acpi_device] hid=PNP0303 (PS/2 Keyboard)
COM1 [acpi_device] hid=PNP0501 (16550A-compatible Serial Port)
RTC_ [acpi_device] hid=PNP0B00 (Real-Time Clock (RTC))
LNKA [acpi_device] hid=PNP0C0F (PCI Interrupt Link Device)
FWCF [acpi_device] hid=QEMU0002 (vendor-specific: raw HID)
Host test covers known ids and the unknown/empty fallthrough. Suite 41/41 plus host
tests.
Daniel Samson