From 27a6ed11f3b0f9a50f6b7cd46a6ae2594f7ff4f7 Mon Sep 17 00:00:00 2001
From: Dan Roundhill <danroundhill@gmail.com>
Date: Thu, 29 Jan 2026 10:12:00 -0700
Subject: [PATCH] Fix Ring-Con not responding after onboarding

When users clip in the Ring-Con during onboarding, the Joy-Con has already
connected and the MCU initialization has completed. Since the Ring-Con wasn't
attached during MCU init, the 0x59 detection command fails to detect it, and
byte 40 (flex sensor data) remains at 0x00.

This fix adds a reinitializeRingCon() method that re-runs the MCU configuration
after onboarding completes, allowing the now-attached Ring-Con to be properly
detected.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 RingBreak/ContentView.swift                  |  4 ++++
 RingBreak/RingConDriver/RingConManager.swift | 19 +++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/RingBreak/ContentView.swift b/RingBreak/ContentView.swift
index 1fb8bb3..2883a2e 100644
--- a/RingBreak/ContentView.swift
+++ b/RingBreak/ContentView.swift
@@ -16,6 +16,10 @@ struct ContentView: View {
                 RingBreakView(ringConManager: ringConManager, menubarController: menubarController)
             } else {
                 OnboardingView {
+                    // Re-initialize Ring-Con MCU after onboarding
+                    // This is needed because the user clips in the Ring-Con during onboarding,
+                    // after the Joy-Con has already connected and MCU initialized
+                    ringConManager.reinitializeRingCon()
                     hasCompletedOnboarding = true
                 }
             }
diff --git a/RingBreak/RingConDriver/RingConManager.swift b/RingBreak/RingConDriver/RingConManager.swift
index 5fe647c..4207cd1 100644
--- a/RingBreak/RingConDriver/RingConManager.swift
+++ b/RingBreak/RingConDriver/RingConManager.swift
@@ -381,6 +381,25 @@ class RingConManager: NSObject, ObservableObject {
         yawRestSamples = 0
     }
 
+    /// Re-initialize Ring-Con MCU configuration
+    /// Call this after the user clips in the Ring-Con to re-detect it
+    func reinitializeRingCon() {
+        guard isConnected else { return }
+
+        // Reset Ring-Con state
+        ringConAttached = false
+        mcuInitialized = false
+        mcuReportCount = 0
+        neutralFlexByte = nil
+        flexValue = 0.5
+        lastFlexByte = 0x0A
+
+        // Re-run MCU initialization
+        Task {
+            await initializeRingCon()
+        }
+    }
+
     /// Start calibration process
     func calibrate() {
         startGuidedCalibration()