Add fastmouse script

3 files changed, 44 insertions, 2 deletions

diff --git a/patch.sh b/patch.sh
index c78e526..f8cd2a2 100755
--- a/patch.sh
+++ b/patch.sh
@@ -9,4 +9,4 @@ rm ./linux/drivers/hid/hid-input.c
 cp ./src/hid-input.c ./linux/drivers/hid/hid-input.c
 
 cd ./linux
-git diff >> ../fastmouse.patch
+git diff > ../fastmouse.patch
diff --git a/scripts/fastmouse b/scripts/fastmouse
new file mode 100755
index 0000000..238b614
--- /dev/null
+++ b/scripts/fastmouse
@@ -0,0 +1,42 @@
+#!/bin/bash
+
+default_accel="-0.90"
+
+set_pointer_accel() {
+	devices=$(busctl --user -- call \
+		org.kde.KWin \
+		/org/kde/KWin/InputDevice \
+		org.freedesktop.DBus.Properties \
+		Get ss org.kde.KWin.InputDeviceManager devicesSysNames \
+		| cut -d' ' -f4- | tr -d '"')
+
+	for device in $devices; do
+		busctl --user -- call \
+			org.kde.KWin \
+			"/org/kde/KWin/InputDevice/${device}" \
+			org.freedesktop.DBus.Properties \
+			Set ssv org.kde.KWin.InputDevice pointerAcceleration d "${1}"
+	done
+}
+
+
+division="${1}"
+if [ "${division}" -le 1 ]; then
+	printf "${0}: divisor must be more than or equal to one\n"
+	exit 1
+fi
+shift
+
+if [[ "${1}" != "--" ]]; then
+	printf "Usage: ${0} [divisor] -- [command...]\n"
+	exit 1
+fi
+shift
+
+sudo su -c "echo ${division} > /sys/module/hid/parameters/division"
+set_pointer_accel $(echo "((1.0 + ${default_accel}) * ${division}) - 1.0" | bc)
+
+"${@}"
+
+sudo su -c "echo 1 > /sys/module/hid/parameters/division"
+set_pointer_accel "${default_accel}"
diff --git a/setup.sh b/setup.sh
index e94e68a..3b01dde 100755
--- a/setup.sh
+++ b/setup.sh
@@ -4,6 +4,6 @@
 
 set -x
 
-rm "${PWD}"/linux/drivers/hid/hid-input.c
+rm ./linux/drivers/hid/hid-input.c
 ln -s "${PWD}"/src/hid-input.c "${PWD}"/linux/drivers/hid/hid-input.c