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#!/usr/bin/env sh
# Find "real" keyboard devices and print their device path.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
#
# Copyright (C) 2009, Canonical Ltd.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
set -e
# returns OK if $1 contains $2
strstr() {
[ "${1#*$2*}" != "$1" ]
}
# returns OK if $1 contains $2 at the beginning
str_starts() {
[ "${1#$2*}" != "$1" ]
}
str_line_starts() {
while read a; do str_starts "$a" "$1" && return 0;done
return 1;
}
# print a list of input devices which are keyboard-like
keyboard_devices() {
# standard AT keyboard
for dev in `udevadm trigger --dry-run --verbose --property-match=ID_INPUT_KEYBOARD=1`; do
walk=`udevadm info --attribute-walk --path=$dev`
env=`udevadm info --query=env --path=$dev`
# filter out non-event devices, such as the parent input devices which
# have no devnode
if ! echo "$env" | str_line_starts 'DEVNAME='; then
continue
fi
if strstr "$walk" 'DRIVERS=="atkbd"'; then
echo -n 'AT keyboard: '
elif echo "$env" | str_line_starts 'ID_USB_DRIVER=usbhid'; then
echo -n 'USB keyboard: '
else
echo -n 'Unknown type: '
fi
udevadm info --query=name --path=$dev
done
# modules
module=$(udevadm trigger --verbose --dry-run --subsystem-match=input --attr-match=name='*Extra Buttons')
module="$module
$(udevadm trigger --verbose --dry-run --subsystem-match=input --attr-match=name='*extra buttons')"
module="$module
$(udevadm trigger --verbose --dry-run --subsystem-match=input --attr-match=name='Sony Vaio Keys')"
for m in $module; do
for evdev in $m/event*/dev; do
if [ -e "$evdev" ]; then
echo -n 'module: '
udevadm info --query=name --path=${evdev%%/dev}
fi
done
done
}
keyboard_devices
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