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From 4919443d69d529a9f5d09b7c4df429f99b1b225a Mon Sep 17 00:00:00 2001
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From: Yu Watanabe <watanabe.yu+github@gmail.com>
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Date: Mon, 12 Dec 2022 13:41:34 +0900
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Subject: [PATCH] hwdb: add comments about matching entries
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Follow-up for 57bb707d48131f4daad2b1b746eab586eb66b4f3.
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This makes the comments in 60-evdev.hwdb, 60-keyboard.hwdb, and
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70-pointingstick.hwdb consistent.
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(cherry picked from commit d3bee9f3008f748241ce482f53256cff38f8c11f)
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Related: RHEL-5950
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---
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hwdb.d/60-evdev.hwdb | 29 +++++++++++++++++++++++++---
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hwdb.d/60-keyboard.hwdb | 37 ++++++++++++++++++------------------
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hwdb.d/70-pointingstick.hwdb | 19 ++++++++++++++----
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3 files changed, 59 insertions(+), 26 deletions(-)
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diff --git a/hwdb.d/60-evdev.hwdb b/hwdb.d/60-evdev.hwdb
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index ef42637ed7..3fbe7ca8e7 100644
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--- a/hwdb.d/60-evdev.hwdb
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+++ b/hwdb.d/60-evdev.hwdb
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@@ -1,11 +1,34 @@
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# This file is part of systemd.
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#
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+# ########################### MATCHING #######################################
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+#
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# The lookup keys are composed in:
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# 60-evdev.rules
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#
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-# Match string formats:
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-# evdev:<modalias>
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-# evdev:name:<device name>:dmi:<dmi string>
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+# Supported hardware matches are:
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+# - Generic input devices match:
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+# evdev:input:bZZZZvYYYYpXXXXeWWWW-VVVV
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+# This matches on the kernel modalias of the input-device, mainly:
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+# ZZZZ is the bus-id (see /usr/include/linux/input.h BUS_*), YYYY, XXXX and
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+# WWWW are the 4-digit hex uppercase vendor, product and version ID and VVVV
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+# is a variable-length input-modalias describing the device capabilities.
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+# The vendor, product and version ID for a device node "eventX" is listed
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+# in /sys/class/input/eventX/device/id.
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+#
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+# - Input driver device name and DMI data match:
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+# evdev:name:<input device name>:dmi:bvn*:bvr*:bd*:svn<vendor>:pn*
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+# <input device name> is the name device specified by the
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+# driver, <vendor> is the firmware-provided string exported
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+# by the kernel DMI modalias, see /sys/class/dmi/id/modalias.
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+#
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+# - Extended input driver device name, properties and DMI data match:
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+# evdev:name:<input device name>:phys:<phys>:ev:<ev>:dmi:bvn*:bvr*:bd*:svn<vendor>:pn*
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+# <input device name> is the name device specified by the
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+# driver, <phys> is the physical-device-path, "cat
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+# /sys/class/input/input?/phys", <ev> is the event bitmask, "cat
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+# /sys/class/input/input?/capabilities/ev" and <vendor> is the
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+# firmware-provided string exported by the kernel DMI modalias,
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+# see /sys/class/dmi/id/modalias.
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#
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# To add local entries, create a new file
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# /etc/udev/hwdb.d/61-evdev-local.hwdb
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diff --git a/hwdb.d/60-keyboard.hwdb b/hwdb.d/60-keyboard.hwdb
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index cdf32107a9..9cfc2fb4ec 100644
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--- a/hwdb.d/60-keyboard.hwdb
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+++ b/hwdb.d/60-keyboard.hwdb
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@@ -19,14 +19,14 @@
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# This matches on the kernel modalias of the input-device, mainly:
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# ZZZZ is the bus-id (see /usr/include/linux/input.h BUS_*), YYYY, XXXX and
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# WWWW are the 4-digit hex uppercase vendor, product and version ID and VVVV
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-# is an arbitrary length input-modalias describing the device capabilities.
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+# is a variable-length input-modalias describing the device capabilities.
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# The vendor, product and version ID for a device node "eventX" is listed
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# in /sys/class/input/eventX/device/id.
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#
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# - AT keyboard DMI data matches:
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# evdev:atkbd:dmi:bvn*:bvr*:bd*:svn<vendor>:pn<product>:pvr*
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# <vendor> and <product> are the firmware-provided strings
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-# exported by the kernel DMI modalias, see /sys/class/dmi/id/modalias
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+# exported by the kernel DMI modalias, see /sys/class/dmi/id/modalias.
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#
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# - Input driver device name and DMI data match:
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# evdev:name:<input device name>:dmi:bvn*:bvr*:bd*:svn<vendor>:pn*
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@@ -41,7 +41,22 @@
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# /sys/class/input/input?/phys", <ev> is the event bitmask, "cat
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# /sys/class/input/input?/capabilities/ev" and <vendor> is the
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# firmware-provided string exported by the kernel DMI modalias,
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-# see /sys/class/dmi/id/modalias
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+# see /sys/class/dmi/id/modalias.
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+#
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+# To add local entries, create a new file
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+# /etc/udev/hwdb.d/61-keyboard-local.hwdb
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+# and add your rules there. To load the new rules execute (as root):
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+# systemd-hwdb update
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+# udevadm trigger /dev/input/eventXX
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+# where /dev/input/eventXX is the keyboard in question. If in doubt, simply use
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+# /dev/input/event* to reload all input rules.
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+#
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+# If your changes are generally applicable, preferably send them as a pull
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+# request to
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+# https://github.com/systemd/systemd
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+# or create a bug report on https://github.com/systemd/systemd/issues and
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+# include your new rules, a description of the device, and the output of
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+# udevadm info /dev/input/eventXX.
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# ######################### KEY MAPPING ######################################
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#
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@@ -76,22 +91,6 @@
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# Examples of such devices: Chromebooks where the top row is used for both
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# media and F1-F10 keys.
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-# To update this file, create a new file
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-# /etc/udev/hwdb.d/70-keyboard.hwdb
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-# and add your rules there. To load the new rules execute (as root):
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-# systemd-hwdb update
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-# udevadm trigger /dev/input/eventXX
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-# where /dev/input/eventXX is the keyboard in question. If in
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-# doubt, simply reload all input rules
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-# udevadm trigger --verbose --sysname-match="event*"
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-#
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-# If your changes are generally applicable, preferably send them as a pull
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-# request to
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-# https://github.com/systemd/systemd
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-# or create a bug report on https://github.com/systemd/systemd/issues and
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-# include your new rules, a description of the device, and the output of
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-# udevadm info /dev/input/eventXX.
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-
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##########################################
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# Acer
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##########################################
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diff --git a/hwdb.d/70-pointingstick.hwdb b/hwdb.d/70-pointingstick.hwdb
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index 00f28c6034..d1e8a7689f 100644
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--- a/hwdb.d/70-pointingstick.hwdb
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+++ b/hwdb.d/70-pointingstick.hwdb
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@@ -4,6 +4,8 @@
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# laptop pointingsticks have the same speed / feel, and per model adjustment
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# of the IBM TrackPoint driver's sensitivity setting
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#
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+# ########################### MATCHING #######################################
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+#
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# The lookup keys are composed in:
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# 60-evdev.rules
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#
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@@ -13,7 +15,7 @@
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# This matches on the kernel modalias of the input-device, mainly:
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# ZZZZ is the bus-id (see /usr/include/linux/input.h BUS_*), YYYY, XXXX and
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# WWW are the 4-digit hex uppercase vendor, product and version ID and VVVV
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-# is an arbitrary length input-modalias describing the device capabilities.
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+# is a variable-length input-modalias describing the device capabilities.
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# The vendor, product and version ID for a device node "eventX" is listed
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# in /sys/class/input/eventX/device/id.
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#
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@@ -21,15 +23,24 @@
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# evdev:name:<input device name>:dmi:bvn*:bvr*:bd*:svn<vendor>:pn*:*
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# <input device name> is the name device specified by the driver,
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# <vendor> is the firmware-provided string from the kernel DMI modalias,
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-# see /sys/class/dmi/id/modalias
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+# see /sys/class/dmi/id/modalias.
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+#
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+# - Extended input driver device name, properties and DMI data match:
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+# evdev:name:<input device name>:phys:<phys>:ev:<ev>:dmi:bvn*:bvr*:bd*:svn<vendor>:pn*
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+# <input device name> is the name device specified by the
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+# driver, <phys> is the physical-device-path, "cat
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+# /sys/class/input/input?/phys", <ev> is the event bitmask, "cat
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+# /sys/class/input/input?/capabilities/ev" and <vendor> is the
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+# firmware-provided string exported by the kernel DMI modalias,
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+# see /sys/class/dmi/id/modalias.
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#
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# To add local entries, create a new file
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|
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# /etc/udev/hwdb.d/71-pointingstick-local.hwdb
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# and add your rules there. To load the new rules execute (as root):
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# systemd-hwdb update
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# udevadm trigger /dev/input/eventXX
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-# where /dev/input/eventXX is the pointingstick in question. If in
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-# doubt, simply use /dev/input/event* to reload all input rules.
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+# where /dev/input/eventXX is the pointingstick in question. If in doubt, simply
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+# use /dev/input/event* to reload all input rules.
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#
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# If your changes are generally applicable, preferably send them as a pull
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# request to
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