Add Modern Audio patch set foundation for macOS 26. Note that this requires PSPKG update, which needs to be done in PSPKG.

opencore_legacy_patcher/sys_patch/patchsets/detect.py

@@ -41,6 +41,7 @@ from .hardware.misc import (
     gmux,
     keyboard_backlight,
     legacy_audio,
+    modern_audio,
     pcie_webcam,
     t1_security,
     usb11,
@@ -127,10 +128,12 @@ class HardwarePatchsetDetection:
             legacy_wireless.LegacyWireless,
             modern_wireless.ModernWireless,
 
+            legacy_audio.LegacyAudio,
+            modern_audio.ModernAudio,
+
             display_backlight.DisplayBacklight,
             gmux.GraphicsMultiplexer,
             keyboard_backlight.KeyboardBacklight,
-            legacy_audio.LegacyAudio,
             pcie_webcam.PCIeFaceTimeCamera,
             t1_security.T1SecurityChip,
             usb11.USB11Controller,

opencore_legacy_patcher/sys_patch/patchsets/hardware/misc/modern_audio.py

@@ -0,0 +1,70 @@
+"""
+modern_audio.py: Modern Audio patch set for macOS 26
+"""
+
+from ..base import BaseHardware, HardwareVariant
+
+from ...base import PatchType
+
+from .....constants import Constants
+
+from .....datasets.os_data import os_data
+
+
+class ModernAudio(BaseHardware):
+
+    def __init__(self, xnu_major, xnu_minor, os_build, global_constants: Constants) -> None:
+        super().__init__(xnu_major, xnu_minor, os_build, global_constants)
+
+
+    def name(self) -> str:
+        """
+        Display name for end users
+        """
+        return f"{self.hardware_variant()}: Modern Audio"
+
+
+    def present(self) -> bool:
+        """
+        AppleHDA was outright removed in macOS 26, so this patch set is always present if OS requires it
+        """
+        return True
+
+
+    def native_os(self) -> bool:
+        """
+        - Everything before macOS Tahoe 26 is considered native
+        """
+        return self._xnu_major < os_data.tahoe.value
+
+
+    def hardware_variant(self) -> HardwareVariant:
+        """
+        Type of hardware variant
+        """
+        return HardwareVariant.MISCELLANEOUS
+
+
+    def _modern_audio_patches(self) -> dict:
+        """
+        Patches for Modern Audio
+        """
+        return {
+            "Modern Audio": {
+                PatchType.OVERWRITE_SYSTEM_VOLUME: {
+                    "/System/Library/Extensions": {
+                        "AppleHDA.kext":      "26.0 Beta 1",
+                    },
+                },
+            },
+        }
+
+
+    def patches(self) -> dict:
+        """
+        Patches for modern audio
+        """
+        if self.native_os() is True:
+            return {}
+
+        return self._modern_audio_patches()