From 9cb73f3fec6ee96891f4e9c6ad4dcb599f485ffa Mon Sep 17 00:00:00 2001
From: Daniel Barlow <dan@telent.net>
Date: Tue, 14 May 2024 12:56:58 +0100
Subject: [PATCH] barebones usb_modeswitch package

---
 overlay.nix                     |  2 ++
 pkgs/default.nix                |  1 +
 pkgs/usb-modeswitch/default.nix | 39 +++++++++++++++++++++++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100644 pkgs/usb-modeswitch/default.nix

diff --git a/overlay.nix b/overlay.nix
index d90f6ea..454fe84 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -271,6 +271,8 @@ extraPkgs // {
    '';
   };
 
+  libusb1 = prev.libusb1.override { enableUdev = false; };
+
   util-linux-small = prev.util-linux.override {
     ncursesSupport = false;
     pamSupport = false;
diff --git a/pkgs/default.nix b/pkgs/default.nix
index 946df60..b63ab3a 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -110,6 +110,7 @@ in {
   systemconfig = callPackage ./systemconfig {};
   tufted = callPackage ./tufted {};
   uevent-watch = callPackage ./uevent-watch {};
+  usb-modeswitch = callPackage ./usb-modeswitch {};
   writeAshScript = callPackage ./write-ash-script {};
   writeFennel = callPackage ./write-fennel {};
   writeFennelScript = callPackage ./write-fennel-script {};
diff --git a/pkgs/usb-modeswitch/default.nix b/pkgs/usb-modeswitch/default.nix
new file mode 100644
index 0000000..7b5c021
--- /dev/null
+++ b/pkgs/usb-modeswitch/default.nix
@@ -0,0 +1,39 @@
+# usb modeswitch without udev, tcl, coreutils, bash dependencies
+{ stdenv
+, lib
+, fetchurl
+, pkg-config
+, libusb1
+}:
+let
+  pname = "usb-modeswitch";
+  version = "2.6.0";
+in stdenv.mkDerivation {
+  inherit pname version;
+
+  src = fetchurl {
+    url    = "http://www.draisberghof.de/usb_modeswitch/${pname}-${version}.tar.bz2";
+    sha256 = "18wbbxc5cfsmikba0msdvd5qlaga27b32nhrzicyd9mdddp265f2";
+  };
+
+  preBuild = ''
+    makeFlagsArray+=(LIBS="$($PKG_CONFIG --libs --cflags libusb-1.0)")
+  '';
+  makeFlags = [
+    "PREFIX=$(out)"
+    "usb_modeswitch"
+  ];
+
+  buildInputs = [ libusb1 ];
+  nativeBuildInputs = [ pkg-config ];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp usb_modeswitch $out/bin
+  '';
+
+  meta = {
+    license = lib.licenses.gpl2;
+    maintainers = [];
+  };
+}