Add module for b43 firmware

modules/hardware/network/b43.nix

@@ -0,0 +1,30 @@
+{pkgs, config, ...}:
+
+let kernelVersion = config.boot.kernelPackages.kernel.version; in
+
+{
+
+  ###### interface
+
+  options = {
+
+    networking.enableB43Firmware = pkgs.lib.mkOption {
+      default = false;
+      type = pkgs.lib.types.bool;
+      description = ''
+        Turn on this option if you want firmware for the NICs supported by the b43 module.
+      '';
+    };
+
+  };
+
+
+  ###### implementation
+
+  config = pkgs.lib.mkIf config.networking.enableB43Firmware {
+    hardware.firmware = if builtins.lessThan (builtins.compareVersions kernelVersion "3.2") 0 then
+      throw "b43 firmware for kernels older than 3.2 not packaged yet!" else
+      [ pkgs.b43Firmware_5_1_138 ];
+  };
+
+}

modules/module-list.nix

@@ -15,6 +15,7 @@
   ./config/unix-odbc-drivers.nix
   ./config/users-groups.nix
   ./hardware/cpu/intel-microcode.nix
+  ./hardware/network/b43.nix
   ./hardware/network/intel-2100bg.nix
   ./hardware/network/intel-2200bg.nix
   ./hardware/network/intel-3945abg.nix