Translated Report (Full Report Below) Process: Xcode [1718] Path: /Applications/Xcode.app/Contents/MacOS/Xcode Identifier: com.apple.dt.Xcode Version: 26.6 (24959) Build Info: IDEApplication-24959000000000000~2 (17F113) Code Type: ARM-64 (Native) Role: Background Parent Process: launchd [1] Coalition: com.apple.dt.Xcode [917] User ID: 502 Date/Time: 2026-08-13 11:26:33.1318 +0800 Launch Time: 2026-08-13 11:26:33.0308 +0800 Hardware Model: Mac16,8 OS Version: macOS 26.6.1 (25G76) Release Type: User Crash Reporter Key: ED18B1CA-EA9C-0657-0CF1-1EFA8C60919E Incident Identifier: 8350CBBA-0B41-4A77-B262-CD0662709FB1 Time Awake Since Boot: 47 seconds System Integrity Protection: disabled Triggered by Thread: 0, Dispatch Queue: com.apple.main-thread Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Termination Reason: Namespace SIGNAL, Code 6, Abort trap: 6 Terminating Process: Xcode [1718] Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib 0x1843745e8 __pthread_kill + 8 1 libsystem_pthread.dylib 0x1843af8d8 pthread_kill + 296 2 libsystem_c.dylib 0x1842b5978 abort + 148 3 libsystem_c.dylib 0x1842b5a94 abort_report_np + 84 4 Xcode 0x102624ed0 main.cold.1 + 36 5 Xcode 0x102624e1c main + 340 6 dyld 0x183fe44e4 start + 6992 Thread 0 crashed with ARM Thread State (64-bit): x0: 0x0000000000000000 x1: 0x0000000000000000 x2: 0x0000000000000000 x3: 0x0000000000000000 x4: 0x0000000000000073 x5: 0x000000000000002e x6: 0x000000016d7db278 x7: 0x0000000000000000 x8: 0x61cbe9e2533f85e8 x9: 0x61cbe9e3a3e16468 x10: 0x0000000000000002 x11: 0x00000000fffffffd x12: 0x0000000000000000 x13: 0x0000000000000000 x14: 0x0000000000000000 x15: 0x0000000000000000 x16: 0x0000000000000148 x17: 0x00000001f242f400 x18: 0x0000000000000000 x19: 0x0000000000000006 x20: 0x0000000000000103 x21: 0x00000001f0dee260 x22: 0x0000000102d5cbe0 x23: 0x00000001f0df5908 x24: 0x0000000000000001 x25: 0x000000016d7db6d0 x26: 0x00000001f0defa70 x27: 0x0000000000000000 x28: 0x0000000000000000 fp: 0x000000016d7db3f0 lr: 0x00000001843af8d8 sp: 0x000000016d7db3d0 pc: 0x00000001843745e8 cpsr: 0x40000000 far: 0x0000000000000000 esr: 0x56000080 (Syscall) Binary Images: 0x102624000 - 0x102627fff com.apple.dt.Xcode (26.6) <8025d4bb-71ea-3f57-bade-2e3c847b6cf3> /Applications/Xcode.app/Contents/MacOS/Xcode 0x18436b000 - 0x1843a82e7 libsystem_kernel.dylib () <7cfb3a10-adb2-32c4-99b5-922a111b3224> /usr/lib/system/libsystem_kernel.dylib 0x1843a9000 - 0x1843b5b3b libsystem_pthread.dylib () <12342372-0084-37a5-9ea6-2e4dc940c685> /usr/lib/system/libsystem_pthread.dylib 0x18423d000 - 0x1842be1e7 libsystem_c.dylib () /usr/lib/system/libsystem_c.dylib 0x183fc4000 - 0x1840774ff dyld () /usr/lib/dyld 0x0 - 0xffffffffffffffff ??? (*) <00000000-0000-0000-0000-000000000000> ???

mine) #include <stdbool.h> #include <stdint.h> typedef enum { MODEL_AIR, MODEL_PRO } MacModel; typedef enum { LED_OFF, LED_SOLID_AMBER, LED_SOLID_YELLOW, LED_SOLID_GREEN, LED_PULSING_AMBER, LED_PULSING_YELLOW } LEDState; uint32_t current_cycle_seconds = 0; MacModel get_mac_model(void); uint8_t get_battery_soc(void); uint8_t get_charge_limit(void); uint32_t get_charger_wattage(void); bool check_hardware_faults(void); void apply_led_hardware_state(LEDState state, bool pin_high); void update_magsafe_led(void) { MacModel model = get_mac_model(); uint8_t soc = get_battery_soc(); uint8_t limit = get_charge_limit(); uint32_t wattage = get_charger_wattage(); bool overcharge_fault = (soc > (limit + 2)); bool critical_error = check_hardware_faults() || overcharge_fault; bool slow_charger = false; if (model == MODEL_AIR && wattage < 30) { slow_charger = true; } else if (model == MODEL_PRO && wattage < 70) { slow_charger = true; } LEDState normal_state; if (soc >= 90 || soc >= limit) { normal_state = LED_SOLID_GREEN; } else if (soc >= 50) { normal_state = LED_SOLID_YELLOW; } else { normal_state = LED_SOLID_AMBER; } LEDState active_state = normal_state; bool should_pulse = false; if (current_cycle_seconds < 10) { if (critical_error) { active_state = LED_PULSING_AMBER; should_pulse = true; } else if (slow_charger) { active_state = LED_PULSING_YELLOW; should_pulse = true; } } bool led_pin_high = true; if (should_pulse) { if (current_cycle_seconds % 2 != 0) { led_pin_high = false; } } apply_led_hardware_state(active_state, led_pin_high); current_cycle_seconds++; if (current_cycle_seconds >= 20) { current_cycle_seconds = 0; }

void WriteCompletion(void *refCon, IOReturn result, void *arg0) { IOUSBInterfaceInterface **interface = (IOUSBInterfaceInterface **) refCon; UInt32 numBytesWritten = (UInt32) arg0; UInt32 numBytesRead; printf("Asynchronous write complete\n"); if (result != kIOReturnSuccess) { printf("error from asynchronous bulk write (%08x)\n", result); (void) (*interface)->USBInterfaceClose(interface); (void) (*interface)->Release(interface); return; } printf("Wrote \"%s\" (%ld bytes) to bulk endpoint\n", kTestMessage, numBytesWritten); numBytesRead = sizeof(gBuffer) - 1; //leave one byte at the end for //NULL termination result = (*interface)->ReadPipeAsync(interface, 9, gBuffer, numBytesRead, ReadCompletion, refCon); if (result != kIOReturnSuccess) { printf("Unable to perform asynchronous bulk read (%08x)\n", result); (void) (*interface)->USBInterfaceClose(interface); (void) (*interface)->Release(interface); return; } } void ReadCompletion(void *refCon, IOReturn result, void *arg0) { IOUSBInterfaceInterface **interface = (IOUSBInterfaceInterface **) refCon; UInt32 numBytesRead = (UInt32) arg0; UInt32 i; printf("Asynchronous bulk read complete\n"); if (result != kIOReturnSuccess) { printf("error from async bulk read (%08x)\n", result); (void) (*interface)->USBInterfaceClose(interface); (void) (*interface)->Release(interface); return; } //Check the complement of the buffer’s contents for original data for (i = 0; i < numBytesRead; i++) gBuffer[i] = ~gBuffer[i]; printf("Read \"%s\" (%ld bytes) from bulk endpoint\n", gBuffer, numBytesRead);