From 568d3f8d894c2dc56731d70019684c86a40ec1d9 Mon Sep 17 00:00:00 2001
From: clerie <git@clerie.de>
Date: Mon, 8 Jan 2024 15:44:28 +0100
Subject: [PATCH] hosts/krypton: Turn on keyboard backlight and display battery
 levels at cryptsetup askpass

---
 hosts/krypton/configuration.nix |  1 +
 hosts/krypton/initrd.nix        | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)
 create mode 100644 hosts/krypton/initrd.nix

diff --git a/hosts/krypton/configuration.nix b/hosts/krypton/configuration.nix
index 53bdecf..9f703ad 100644
--- a/hosts/krypton/configuration.nix
+++ b/hosts/krypton/configuration.nix
@@ -8,6 +8,7 @@
       ../../configuration/desktop
 
       ./backup.nix
+      ./initrd.nix
       ./network.nix
       ./programs.nix
     ];
diff --git a/hosts/krypton/initrd.nix b/hosts/krypton/initrd.nix
new file mode 100644
index 0000000..62a89f2
--- /dev/null
+++ b/hosts/krypton/initrd.nix
@@ -0,0 +1,17 @@
+{ ... }:
+
+{
+
+  boot.initrd.kernelModules = [ "thinkpad_acpi" ];
+
+  boot.initrd.preLVMCommands = ''
+    # Turn on keyboard backlight before asking for drive encryption password
+    echo 1 > /sys/class/leds/tpacpi::kbd_backlight/brightness
+
+    # Show battery levels
+    echo
+    echo "Battery level: External $(cat /sys/class/power_supply/BAT1/capacity)% Internal $(cat /sys/class/power_supply/BAT0/capacity)%"
+    echo
+  '';
+
+}