From aa0a26280dbc13f7fd02b4b30b1629720dd532b4 Mon Sep 17 00:00:00 2001
From: Martin Weinelt <hexa@darmstadt.ccc.de>
Date: Thu, 21 Nov 2024 14:54:58 +0100
Subject: [PATCH] libedgetpu: use dedicated coral group

---
 pkgs/by-name/li/libedgetpu/package.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/by-name/li/libedgetpu/package.nix b/pkgs/by-name/li/libedgetpu/package.nix
index 9ead9c5f60b3..563e4d56dda1 100644
--- a/pkgs/by-name/li/libedgetpu/package.nix
+++ b/pkgs/by-name/li/libedgetpu/package.nix
@@ -43,6 +43,12 @@ stdenv.mkDerivation {
     })
   ];
 
+  postPatch = ''
+    # Use dedicated group for coral devices
+    substituteInPlace debian/edgetpu-accelerator.rules \
+      --replace-fail "plugdev" "coral"
+  '';
+
   makeFlags = [
     "-f"
     "makefile_build/Makefile"