hotplug.sh

#!/bin/sh
# /usr/local/sbin/hotplug
# sysctl -w kernel.hotplug=/usr/local/sbin/hotplug

dir=/usr/local/etc/hotplug

for script in `ls -1 "$dir"/*`; do
    [ -x "$script" ] && ( "$script" >/dev/null 2>&1 ) &
done

wacom-disable-touch.sh

#!/bin/sh -e
# /usr/local/etc/wacom-disable-touch.sh

log=/var/log/hotplug.log
internal='eDP1'
display='127.0.0.1:0'
wacom_device='Wacom ISD'
touch_device='Atmel maXTouch'

[ "x$1" = 'x-v' ] || log=/dev/null # silent unless -v

log() {
    echo "$@" >> "$log"
}

xsetwacom() {
    DISPLAY="$display" command xsetwacom "$@"
}

is_wacom_active() {
    xsetwacom list devices | grep "$wacom_device" >/dev/null || return 1
}

xinput() {
    DISPLAY="$display" command xinput "$@"
}

touch_device() {
    xinput --list | grep "$touch_device" | sed 's/^.*id=\([0-9]\+\).*$/\1/' || return 1
}

touch_enable() {
    id=`touch_device`
    [ -n "$id" ] && {
        xinput --enable "$id"
        log "[wacom] enable device $id"
    }
}

touch_disable() {
    id=`touch_device`
    [ -n "$id" ] && {
        xinput --disable "$id"
        log "[wacom] disable device $id"
    }
}

update() {
    [ -z "$INTERFACE" ] && return

    is_wacom_active && {
        touch_disable
        return
    }

    touch_enable
}

log "[$ACTION][$TYPE][$INTERFACE][$PRODUCT]\n$DEVPATH"

case "$ACTION" in
add|remove)
    ( sleep 1; update ) &
    ;;
esac

wacom-rotation.sh

#!/bin/sh
# /usr/local/etc/wacom-rotation.sh

log=/var/log/hotplug.log
internal='eDP1'
display='127.0.0.1:0'
wacom_device='Wacom ISD'

[ "x$1" = 'x-v' ] || log=/dev/null # silent unless -v

log() {
    echo "$@" >> "$log"
}

xrandr() {
    DISPLAY="$display" command xrandr "$@"
}

xsetwacom() {
    DISPLAY="$display" command xsetwacom "$@"
}

list_wacom_devices() {
    xsetwacom list devices | grep "$wacom_device" | sed 's/[ \t]*id: .*//'
}

current_rotation() {
    xrandr --verbose -q | grep "$internal" | grep 'connected' | cut -f 5 -d ' '
}

update_wacom() {
    [ -z "$INTERFACE" ] && return

    case `current_rotation` in
    normal)
        rotation=none
        ;;
    right)
        rotation=cw
        ;;
    inverted)
        rotation=half
        ;;
    left)
        rotation=ccw
    esac
    [ -z "$rotation" ] && return

    list_wacom_devices | while read device; do
        xsetwacom set "$device" Rotate "$rotation" >> "$log" 2>&1
        xsetwacom set "$device" MapToOutput "$internal" >> "$log" 2>&1
        log "[wacom] device="$device" rotation=$rotation"
    done
}

log "[$ACTION][$TYPE][$INTERFACE][$PRODUCT]\n$DEVPATH"

case "$ACTION" in
add)
    update_wacom
    ;;
esac