From 07fc475ca17f106bfa2b7d1079d274d9d33be973 Mon Sep 17 00:00:00 2001
From: Dan Buch <dan@meatballhat.com>
Date: Tue, 26 Jan 2021 10:28:18 -0500
Subject: [PATCH] More fun with xinput

---
 local/bin/xinput-preferences | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/local/bin/xinput-preferences b/local/bin/xinput-preferences
index 3b19b87..ac9da1a 100755
--- a/local/bin/xinput-preferences
+++ b/local/bin/xinput-preferences
@@ -4,16 +4,27 @@ set -o pipefail
 
 main() {
   _setup_elan_touchpad
+  _setup_trackman_marble
 }
 
 _setup_elan_touchpad() {
   local etp='Elan Touchpad'
 
-  xinput list | if ! grep -q "${etp}"; then
+  if ! xinput list-props "${etp}" &>/dev/null; then
     return
   fi
   xinput set-prop "${etp}" 'libinput Tapping Enabled' 1
   xinput set-prop "${etp}" 'libinput Natural Scrolling Enabled' 1
 }
 
+_setup_trackman_marble() {
+  local tmm='Logitech USB Trackball'
+
+  if ! xinput list-props "${tmm}" &>/dev/null; then
+    return
+  fi
+  xinput set-prop "${tmm}" 'libinput Button Scrolling Button' 8
+  xinput set-prop "${tmm}" 'libinput Scroll Method Enabled' 0 0 1
+}
+
 main "${@}"