gpio-tools: init in kernel 5.4

Linux provides some tools to interact with the gpiochip interface (which
replaces the deprecated sysfs GPIO interface). Expose these as a
package.

The tool has not changed much recently, so there is no need to package a
version for each kernel.

1 files changed, 24 insertions, 0 deletions

diff --git a/pkgs/os-specific/linux/kernel/gpio-utils.nix b/pkgs/os-specific/linux/kernel/gpio-utils.nix
new file mode 100644
index 000000000000..447704eedc8d
--- /dev/null
+++ b/pkgs/os-specific/linux/kernel/gpio-utils.nix
@@ -0,0 +1,24 @@
+{ lib, stdenv, linux }:
+
+with lib;
+
+assert versionAtLeast linux.version "4.6";
+
+stdenv.mkDerivation {
+  name = "gpio-utils-${linux.version}";
+
+  inherit (linux) src makeFlags;
+
+  preConfigure = ''
+    cd tools/gpio
+  '';
+
+  separateDebugInfo = true;
+  installFlags = [ "install" "DESTDIR=$(out)" "bindir=/bin" ];
+
+  meta = {
+    description = "Linux tools to inspect the gpiochip interface";
+    maintainers = with stdenv.lib.maintainers; [ kwohlfahrt ];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}