docs(games): the proven DiRT Rally 2.0 proxy recipe, and purpleferret's full credit

CHANGELOG.md

@@ -5,6 +5,18 @@ changes to the sysfs surface, minor versions add supported wheels or
 new attributes, patch versions are bug fixes and documentation. Pre-1.0
 the contract is "it works on RS50 and G Pro as listed here".
 
+## Unreleased
+
+**The DiRT Rally 2.0 recipe is written down, end to end.** With the proxy
+turned on (`690790 ffb=proxy`), the telemetry set to `extradata="3"`, and a
+one-line `device_defines.xml` entry that gives the stand-in wheel an
+identity the game knows, a G PRO gets force feedback, the rev LEDs and the
+wheel-base display in that game under Proton, confirmed by a reporter
+([#105](../../issues/105)). The exact steps are in the registry setup text
+and on the wiki. The game keys force feedback on the wheel's USB id and the
+stand-in's was new to it, which is why it sent nothing until told; a
+built-in way to present a known identity is a candidate for later.
+
 ## 0.42.3 - 2026-09-22
 
 **The launcher says when the running module is older than the apps, and

CREDITS.md

@@ -95,9 +95,15 @@ until the last round.
   [#87](../../issues/87)). Those numbers are what the engine's condition
   forces will be calibrated against, and his wedge report on the Xbox
   edition found a detector that reset itself on every error reply.
-- **[purpleferret](https://github.com/purpleferret)** - a G PRO with no
-  force feedback in Assetto Corsa Rally, with the launcher log that showed
-  the game had been listed on the wrong route ([#105](../../issues/105)).
+- **[purpleferret](https://github.com/purpleferret)** - a G PRO through
+  the whole DirectInput proxy route on DiRT Rally 2.0
+  ([#105](../../issues/105)): the report that put Assetto Corsa Rally on
+  the right route, then a run of precise logs and USB captures that found
+  four faults nothing here could have shown (the proxy never aimed at the
+  wheel, its errors going nowhere a Steam user can read, `/dev/uhid`
+  root-only where uhid is not loaded, and a shifter's gears dropped for
+  want of buttons past 32), and finally the debug trace proving the game
+  sent the wheel nothing until it was given an identity the game knew.
 - **[Lorenzoo78](https://github.com/Lorenzoo78)** - the Assetto Corsa EVO
   stutter report under the launcher ([#74](../../issues/74)).
 - **[matthiasvegh](https://github.com/matthiasvegh)** - twelve issues and

userspace/logi-wheel/crates/logi-wheel-core/src/games.rs

@@ -787,7 +787,7 @@ logi-tf-sim.",
         ffb: Ffb::NativeEvdev,
         native_trueforce: Support::Expected,
         simulated_tf: SimTf::LiveNow("dirt-rally-2"),
-        setup: "Switch on the game's UDP telemetry, which is off by default: in `hardware_settings_config.xml` (under the game's documents folder in the prefix) set `<udp enabled=\"true\" extradata=\"3\" ...>` (the daemon needs the `extradata=\"3\"` packet; the default 0 is too short to synthesise from), port 20777 as it ships; launch options `logi-launch %command%` (it starts logi-tf-sim for you); Steam Input off. Force feedback under Proton reaches this game only through Wine's joystick path, which on some builds does not present the wheel at all (#105); the `logi-ffb` proxy route is under test there.",
+        setup: "Switch on the game's UDP telemetry, which is off by default: in `hardware_settings_config.xml` (under the game's documents folder in the prefix) set `<udp enabled=\"true\" extradata=\"3\" ...>` (the daemon needs the `extradata=\"3\"` packet; the default 0 is too short to synthesise from), port 20777 as it ships; launch options `logi-launch %command%` (it starts logi-tf-sim for you); Steam Input off. Force feedback under Proton reaches this game only through Wine's joystick path, which on some builds does not present the wheel at all; where it does not, the `logi-ffb` proxy route works, confirmed on a G PRO: add `690790 ffb=proxy` to `~/.config/logi-wheel/games.conf`, and because the game keys force feedback on the wheel's USB id, add a `device_defines.xml` line for the virtual wheel (the exact line is on the wiki, Force Feedback in Games) (#105).",
         confidence: Confidence::Documented,
     },
     GameCompat {