1 files changed, 40 insertions, 0 deletions
diff --git a/nixos/modules/services/hardware/sane.nix b/nixos/modules/services/hardware/sane.nix
new file mode 100644
index 000000000000..905445f22c1b
--- /dev/null
+++ b/nixos/modules/services/hardware/sane.nix
@@ -0,0 +1,40 @@
+{ 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.saneBackendsGit
+                          else pkgs.saneBackends;
+      in mkIf config.hardware.sane.enable {
+           environment.systemPackages = [ pkg ];
+           services.udev.packages = [ pkg ];
+           
+           users.extraGroups = singleton {
+             name = "scanner";
+             gid = config.ids.gids.scanner;
+           };
+
+      };
+
+}