Full controller path for the SteamOS-like session, mirroring Sunshine byte-for-byte
(wire formats verified against moonlight-common-c + Sunshine source; ioctl numbers and
struct layouts verified by compiling against this box's <linux/uinput.h>, locked in with
const asserts):
- gamestream/gamepad.rs: decode MULTI_CONTROLLER (magic 0x0C, mixed BE-size/LE-body) incl.
the Sunshine buttonFlags2 extension (paddles/touchpad/Misc — our appversion already
advertises Sunshine, so clients send it) and CONTROLLER_ARRIVAL (0x55000004); build the
0x010B rumble plaintext (with the mandatory 4-byte filler). Unit-tested.
- inject/gamepad.rs: VirtualPad clones the kernel xpad identity ("Microsoft X-Box 360 pad",
045e:028e, exact button/axis codes + absinfo) so SDL/Steam/Proton match their built-in
mapping with zero config. GamepadManager creates/destroys pads from activeGamepadMask
(hotplug), emits button transitions + axes (+Y-up → evdev +Y-down negation, D-pad as
HAT0X/Y) per frame. Rumble: non-blocking FF pump answers UI_BEGIN/END_FF_UPLOAD/ERASE
(games block in EVIOCSFF until answered), tracks effects with replay expiry + FF_GAIN,
mixes to (low, high) motor levels, dedups.
- control.rs: channel_limit 8 → 0x30 — Moonlight sends gamepad input on ENet channel
0x10+n, so the old limit silently discarded ALL controller input. Gamepad events route to
the manager; rumble is sealed with the client's detected GCM scheme direction-flipped
(V2 marker 'H?', own seq counter) and sent on the control peer every service tick.
- scripts/60-lumen.rules: udev rule (Sunshine-style) granting the input group /dev/uinput.
Live validation needs the udev rule installed (root-only /dev/uinput on this box) + a
Moonlight client with a controller; everything else is gated and unit/static-checked.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
gamescope runs its own EIS server and exports the socket to its children as LIBEI_SOCKET —
no portal involved. The gamescope backend now launches the nested app through a tiny shell
wrapper that relays that value to /tmp/lumen-gamescope-ei; the libei injector gains an
EiSource enum (Portal | SocketPathFile) and connects a UnixStream directly to gamescope's
socket (polling until the app has started), then runs the identical reis sender flow.
Backend::GamescopeEi is auto-selected when LUMEN_COMPOSITOR=gamescope
(LUMEN_INPUT_BACKEND=gamescope overrides).
Validated end-to-end: input-test against a headless gamescope running xev — 129
MotionNotify/KeyPress/ButtonPress events delivered into the nested X app ("Gamescope
Virtual Input" device bound, sender handshake + emulation working).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Add a second input-injection backend that works on compositors implementing
the org.freedesktop.portal.RemoteDesktop interface (KWin, GNOME/Mutter), where
the wlroots virtual-input protocols are absent. Uses ashpd 0.13 to open a
RemoteDesktop session + EIS fd and reis 0.6.1 to drive it as an EI sender:
bind pointer/keyboard/scroll/button capabilities and, per device,
start_emulating → emit → frame. Runs on a dedicated thread with its own tokio
runtime (the portal session + EIS connection must stay alive and the event
stream must be polled continuously); open() returns immediately so a slow or
denied portal can never freeze the ENet control thread, with events enqueued
over an unbounded channel until devices resume.
Backend now auto-selects per session (inject::default_backend): wlr on Sway,
libei on KDE/GNOME; LUMEN_INPUT_BACKEND overrides. Refactor inject.rs into the
inject/{wlr,libei}.rs layout matching the capture/encode convention. Keyboard
codes are evdev (the same space our VK→evdev table produces) and the compositor
supplies the keymap, so no keymap upload and no modifier serialization — pressing
the modifier keys Moonlight sends is enough.
Add a `lumen-host input-test` subcommand that injects a scripted mouse+keyboard
pattern through the session backend, so input injection can be validated without
a Moonlight client.
Live-validated on headless KWin (Plasma 6.4): mouse motion, left click, and the
'A' key inject correctly and are delivered to the focused client.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
enricobuehler