awawa

home-manager/features/scarlett-air.nix

@@ -0,0 +1,51 @@
+{ pkgs, ... }: let
+  amixer = "${pkgs.alsa-utils}/bin/amixer";
+  script = pkgs.writeScriptBin "scarlett-air" ''
+    #!${pkgs.stdenv.shell}
+    which=0
+    controlName=""
+    newValue=$${1:-2}
+
+    find_control() {
+      for i in /dev/snd/controlC*; do
+        r=$(${amixer} controls -c $which | grep "name='Line In 2 Air Capture Enum'")
+
+        if [[ -z $r ]]; then
+          ((which++))
+          continue
+        else
+          break
+        fi
+
+        echo "found: $r"
+
+        controlName=$r
+      done
+    }
+
+    for n in {1..30}; do
+      find_control
+      if [[ -z $controlName ]]; then
+        echo "control not found this loop, waiting..."
+        sleep 1s
+        continue
+      fi
+
+      ${amixer} cset -c $which "$controlName" "$newValue" && exit 0
+    done
+  '';
+in {
+  home.packages = [
+    script
+  ];
+
+  # systemd.user.services.scarlett-air = {
+  #   enable = true;
+  #   wantedBy = [ "graphical-session.target" ];
+  #   description = "Enables yellow Air on the DAC";
+  #   serviceConfig = {
+  #     Type = "oneshot";
+  #     ExecStart = "${script}/bin/scarlett-air";
+  #   };
+  # };
+}