From e87764e32789bca3e2be323d993731ffa0bf3f17 Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Mon, 5 Dec 2011 17:32:45 +0000
Subject: [PATCH] Apply mornfall's SANE patches

Fix sane-backends to generate udev rules, add a snapshot of sane-backends's unstable repo, and add a SANE nixos module

svn path=/nixos/trunk/; revision=30764
---
 modules/module-list.nix            |  1 +
 modules/services/hardware/sane.nix | 34 ++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 modules/services/hardware/sane.nix

diff --git a/modules/module-list.nix b/modules/module-list.nix
index ea800648eab3..a44e1c6e422a 100644
--- a/modules/module-list.nix
+++ b/modules/module-list.nix
@@ -68,6 +68,7 @@
   ./services/hardware/bluetooth.nix
   ./services/hardware/hal.nix
   ./services/hardware/pcscd.nix
+  ./services/hardware/sane.nix
   ./services/hardware/udev.nix
   ./services/hardware/udisks.nix
   ./services/hardware/upower.nix
diff --git a/modules/services/hardware/sane.nix b/modules/services/hardware/sane.nix
new file mode 100644
index 000000000000..e9f32a2662cf
--- /dev/null
+++ b/modules/services/hardware/sane.nix
@@ -0,0 +1,34 @@
+{ config, pkgs, ... }:
+
+with pkgs.lib;
+
+{
+
+  ###### interface
+
+  options = {
+
+    hardware.sane.enable = mkOption {
+      default = false;
+      description = "Enable support for SANE scanners.";
+    };
+
+    hardware.sane.snapshot = mkOption {
+      default = false;
+      description = "Use a development snapshot of SANE scanner drivers.";
+    };
+
+  };
+
+
+  ###### implementation
+
+    config = let pkg = if config.hardware.sane.snapshot
+                          then pkgs.saneBackendsSnapshot
+                          else pkgs.saneBackends;
+      in mkIf config.hardware.sane.enable {
+           environment.systemPackages = [ pkg ];
+           services.udev.packages = [ pkg ];
+      };
+
+}