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-rw-r--r--nixos/modules/hardware/rtl-sdr.nix23
1 files changed, 23 insertions, 0 deletions
diff --git a/nixos/modules/hardware/rtl-sdr.nix b/nixos/modules/hardware/rtl-sdr.nix
new file mode 100644
index 00000000000..e85fc04e29b
--- /dev/null
+++ b/nixos/modules/hardware/rtl-sdr.nix
@@ -0,0 +1,23 @@
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.hardware.rtl-sdr;
+
+in {
+  options.hardware.rtl-sdr = {
+    enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      description = ''
+        Enables rtl-sdr udev rules, ensures 'plugdev' group exists, and blacklists DVB kernel modules.
+        This is a prerequisite to using devices supported by rtl-sdr without being root, since rtl-sdr USB descriptors will be owned by plugdev through udev.
+       '';
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    boot.blacklistedKernelModules = [ "dvb_usb_rtl28xxu" "e4000" "rtl2832" ];
+    services.udev.packages = [ pkgs.rtl-sdr ];
+    users.groups.plugdev = {};
+  };
+}