From 998a1d9aaf53e671e5e70f090846c28100bc6690 Mon Sep 17 00:00:00 2001
From: Kyle Isom <kyle@imap.cc>
Date: Wed, 25 Mar 2026 16:29:04 -0700
Subject: [PATCH] fix stylus support

---
 hw/vade/default.nix | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/hw/vade/default.nix b/hw/vade/default.nix
index 9ad39aa..bd90145 100644
--- a/hw/vade/default.nix
+++ b/hw/vade/default.nix
@@ -26,4 +26,16 @@
   boot.extraModprobeConfig = ''
     options snd_hda_intel power_save=1
   '';
+
+  # ILITEK USI stylus/touchscreen support
+  # The stylus device is misclassified as a keyboard by the default evdev
+  # catchall. Force it to use libinput as a tablet device.
+  services.xserver.inputClassSections = [
+    ''
+      Identifier "ILITEK stylus tablet"
+      MatchProduct "ILIT2901:00 222A:5539 Stylus"
+      MatchDevicePath "/dev/input/event*"
+      Driver "libinput"
+    ''
+  ];
 }