The most hook-laden conversion: SteamControllerManager becomes a pub
type alias of UhidManager<SteamProto>. The Steam-specific pieces map
cleanly onto the trait — open() delegates to open_transport (usbip →
gadget → UHID fallback, which keeps its own per-transport logging, so no
extra success line, matching the old ensure), merge_frame preserves the
trackpad coords/touch-bits/clicks + motion across button-only frames
(the G2 fix, verbatim), and the gamepad-mode-entry pulse rides the
force_heartbeat hook. DeckTransport goes pub (type Pad in a public-trait
impl). Also un-fuses a doc-comment glitch where the manager's doc had
been merged onto the DeckTransport enum.
Verified on .21: clippy --all-targets -D warnings clean; full suite 290
pass / 0 fail.
Part of G12/3.3 (§3a.4 commit 8) — all five stateful managers now share
one skeleton.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
enricobuehler
384fc30833