From fac1372074a8f6dcb6825b046ab95bfe9c2e9000 Mon Sep 17 00:00:00 2001
From: MarcFontaine <MarcFontaine@users.noreply.github.com>
Date: Wed, 30 Dec 2020 00:23:25 +0100
Subject: pcimem: init at unstable-2018-08-29

This commit adds the pcimem tool.
pcimem is a simple method of reading and writing to memory registers on a PCI card.
Compared to pkgs.devmem2, it does not work on the total memory space
of the machine but restricts access to just one PCI resource.
---
 pkgs/os-specific/linux/pcimem/default.nix | 30 ++++++++++++++++++++++++++++++
 pkgs/top-level/all-packages.nix           |  2 ++
 2 files changed, 32 insertions(+)
 create mode 100644 pkgs/os-specific/linux/pcimem/default.nix

diff --git a/pkgs/os-specific/linux/pcimem/default.nix b/pkgs/os-specific/linux/pcimem/default.nix
new file mode 100644
index 00000000000..b559bd98b9c
--- /dev/null
+++ b/pkgs/os-specific/linux/pcimem/default.nix
@@ -0,0 +1,30 @@
+{ stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "pcimem";
+  version = "unstable-2018-08-29";
+
+  src = fetchFromGitHub {
+    owner = "billfarrow";
+    repo = pname;
+    rev = "09724edb1783a98da2b7ae53c5aaa87493aabc9b";
+    sha256 = "0zlbvcl5q4hgna11p3w00px1p8qgn8ga79lh6a2m7d597g86kbq3";
+  };
+
+  outputs = [ "out" "doc" ];
+
+  makeFlags = [ "CFLAGS=-Wno-maybe-uninitialized" ];
+
+  installPhase = ''
+    install -D pcimem "$out/bin/pcimem"
+    install -D README "$doc/doc/README"
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Simple method of reading and writing to memory registers on a PCI card";
+    homepage = "https://github.com/billfarrow/pcimem";
+    license = licenses.gpl2Only;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ mafo ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index bc1ddfa20e9..69587e0bf17 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6527,6 +6527,8 @@ in
 
   pbzip2 = callPackage ../tools/compression/pbzip2 { };
 
+  pcimem = callPackage ../os-specific/linux/pcimem { };
+
   pciutils = callPackage ../tools/system/pciutils { };
 
   pcsclite = callPackage ../tools/security/pcsclite {
-- 
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