The PnP-identity fix established that the sealed channel is STRUCTURALLY
unavailable while hidclass enumerates (the DATA section arrives over the
HID interface those very queries create) — so device_type()'s bounded
1 s pump loop, reachable only for a devnode whose hardware ids matched
nothing, could never succeed there: it burned a second of a WUDFHost
dispatch thread mid-enumeration and then fell back to LAST_DEVTYPE
anyway. The fallback chain is now wait-free (attached section → PnP
identity → LAST_DEVTYPE), and the 8 ms timer refreshes LAST_DEVTYPE
whenever the section is attached, so the last resort is always current.
The logger also joins its siblings behind file_log_enabled(): a RELEASE
driver without the opt-in no longer OutputDebugStringA's (+ CString +
format! allocs) per logged event — the rumble OUTPUT hex dumps and the
cyclic GET_STRING polls were sustained paths.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
enricobuehlerandClaude Fable 5
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