Finish the client side of the Steam Controller / Steam Deck pipeline.
- C-ABI (core abi.rs): PunktfunkRichInputEx — a size-prefixed superset of
PunktfunkRichInput that can express the second trackpad (surface), a distinct
click vs touch, signed coords + pressure — plus
punktfunk_connection_send_rich_input2 (the struct_size ABI-skew-guard
precedent). The only way a C client (Apple/embedders) can emit a TouchpadEx;
the legacy struct + send_rich_input stay byte-for-byte. punktfunk_core.h
regenerated.
- Decky (clients/decky): a "Steam Deck" gamepad type in Settings + an unmissable
Disable-Steam-Input instruction shown when it's selected (in Game Mode Steam
Input holds 0x1205, so the SDL HIDAPI Steam driver can't open the Deck's
controls until the user disables Steam Input for the shortcut). Plus a
best-effort, feature-detected disableSteamInputForShortcut() in launchStream —
never blocks/throws; the manual toggle is the documented source of truth.
- Apple parity (PunktfunkConnection.swift): GamepadType.steamController/steamDeck
(wire 5/6) + name parsing, so the resolved type round-trips. Capture is blocked
(GameController never surfaces a 0x28DE HID device).
- Android parity (Gamepad.kt): PREF_STEAMCONTROLLER/STEAMDECK + the Valve 0x28DE
PIDs in prefFor(). Rich-input capture stays out of scope (no rich-input plane
yet) — standard buttons/sticks resolve to the host's Steam Deck pad.
Rust workspace clippy/fmt/test green; Decky src/ typechecks clean (only a
pre-existing @decky/api dep resolution error remains); Swift/Kotlin compile on
their CI. The full pipeline is now BUILT; what remains is validation that needs
hardware we don't have (a running Steam on the host, a live Deck client, the
Moonlight paddle regression). Not pushed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
enricobuehler
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