From 0e9a2388bf9e1a3258b19ebd00da0a804875ad10 Mon Sep 17 00:00:00 2001
From: Griffin Smith <root@gws.fyi>
Date: Tue, 26 May 2020 10:29:39 -0400
Subject: [PATCH] Start of an RTL-SDR module

---
 home/machines/chupacabra.nix |  1 +
 home/modules/rtlsdr.nix      | 21 +++++++++++++++++++++
 system/modules/common.nix    |  1 +
 system/modules/rtlsdr.nix    | 17 +++++++++++++++++
 4 files changed, 40 insertions(+)
 create mode 100644 home/modules/rtlsdr.nix
 create mode 100644 system/modules/rtlsdr.nix

diff --git a/home/machines/chupacabra.nix b/home/machines/chupacabra.nix
index 86be9b361..69d1c604a 100644
--- a/home/machines/chupacabra.nix
+++ b/home/machines/chupacabra.nix
@@ -7,6 +7,7 @@ in {
 
     ../modules/common.nix
     ../modules/games.nix
+    ../modules/rtlsdr.nix
   ];
 
   system.machine = {
diff --git a/home/modules/rtlsdr.nix b/home/modules/rtlsdr.nix
new file mode 100644
index 000000000..a1c717617
--- /dev/null
+++ b/home/modules/rtlsdr.nix
@@ -0,0 +1,21 @@
+{ config, lib, pkgs, ... }:
+
+let
+
+  nixpkgs-gnuradio = import (pkgs.fetchFromGitHub {
+    owner = "doronbehar";
+    repo = "nixpkgs";
+    rev = "712561aa5f10bfe6112a1726a912585612a70d1f";
+    sha256 = "04yqflbwjcfl9vlplphpj82csqqz9k6m3nj1ybhwgmsc4by7vivl";
+  }) {};
+
+in
+
+{
+  home.packages = with pkgs; [
+    rtl-sdr
+    nixpkgs-gnuradio.gnuradio
+    nixpkgs-gnuradio.gnuradio.plugins.osmosdr
+    nixpkgs-gnuradio.gqrx
+  ];
+}
diff --git a/system/modules/common.nix b/system/modules/common.nix
index 230652c3d..c505d0d5d 100644
--- a/system/modules/common.nix
+++ b/system/modules/common.nix
@@ -7,6 +7,7 @@
       ./fonts.nix
       ./sound.nix
       ./kernel.nix
+      ./rtlsdr.nix
       /home/grfn/code/urb/urbos/system
     ];
 
diff --git a/system/modules/rtlsdr.nix b/system/modules/rtlsdr.nix
new file mode 100644
index 000000000..ce58ebb0d
--- /dev/null
+++ b/system/modules/rtlsdr.nix
@@ -0,0 +1,17 @@
+{ config, lib, pkgs, ... }:
+
+{
+
+  environment.systemPackages = with pkgs; [
+    rtl-sdr
+  ];
+
+  services.udev.packages = with pkgs; [
+    rtl-sdr
+  ];
+
+  # blacklist for rtl-sdr
+  boot.blacklistedKernelModules = [
+    "dvb_usb_rtl28xxu"
+  ];
+}