From 1b38f6952cc8d01e8f5bbedd75a3cff2c0fef0c9 Mon Sep 17 00:00:00 2001
From: patrykorwat <patrykorwat@gmail.com>
Date: Wed, 2 Sep 2026 17:28:57 +0000
Subject: [PATCH] detectors: detect_axelera probe (/dev/metis*) + device node
 init

---
 .../rootfs/etc/s6-overlay/s6-rc.d/init-devices/run |  1 +
 frigate/detectors/hardware.py                      | 14 ++++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/docker/main/rootfs/etc/s6-overlay/s6-rc.d/init-devices/run b/docker/main/rootfs/etc/s6-overlay/s6-rc.d/init-devices/run
index 72bbc0434c..c3d94c4eb2 100755
--- a/docker/main/rootfs/etc/s6-overlay/s6-rc.d/init-devices/run
+++ b/docker/main/rootfs/etc/s6-overlay/s6-rc.d/init-devices/run
@@ -37,6 +37,7 @@ device_globs=(
     "/dev/nvmap"
     "/dev/nvidia*"
     "/dev/memx*"
+    "/dev/metis*"
 )
 
 IFS=',' read -ra extra_globs <<< "${DEVICE_ACL_PATHS:-}"
diff --git a/frigate/detectors/hardware.py b/frigate/detectors/hardware.py
index 756fbd430e..1604dfcbf1 100644
--- a/frigate/detectors/hardware.py
+++ b/frigate/detectors/hardware.py
@@ -273,6 +273,19 @@ def detect_memryx() -> DetectionHardware | None:
     return _hardware("memryx", "memryx", "MemryX MX3", units)
 
 
+def detect_axelera() -> DetectionHardware | None:
+    """Find Axelera Metis accelerators by their device nodes."""
+    nodes = sorted(glob(f"{DEV_ROOT}/metis*"))
+
+    if not nodes:
+        return None
+
+    # the runtime addresses the card through the driver, not per node, so one
+    # unit covers the accelerator
+    units = [HardwareUnit(device="axelera:PCIe", label=os.path.basename(nodes[0]))]
+    return _hardware("axelera", "axelera", "Axelera Metis", units)
+
+
 def detect_rockchip() -> DetectionHardware | None:
     """Find a Rockchip NPU by reading the SoC from the device tree."""
     compatible = _read(f"{PROC_ROOT}/device-tree/compatible")
@@ -319,6 +332,7 @@ PROBES = (
     detect_coral_usb,
     detect_hailo,
     detect_memryx,
+    detect_axelera,
     detect_intel_npu,
     detect_intel_gpu,
     detect_nvidia_gpu,