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#!/bin/sh -e
#
# Scans /proc/bus/input/devices for the given device.
#
# (c) 2004 Darren Salt <linux@youmustbejoking.demon.co.uk>
# GPL v2 or later applies.
[ "$1" ] || exit 0
# input device name, less leading "input/"
DEVICE=${1#input/}
# "|"-separated list.
# The first found in the given device's "N:" line will be output.
DEFAULT_KEYWORDS='dvb|saa7134'
KEYWORDS=${2:-$DEFAULT_KEYWORDS}
exec sed -nre '
/^I:/ {
: gather
N
/\nH:/! b gather
/'"$DEVICE"'/ {
s/^.*\nN:[^\n]*("|\b)('"$KEYWORDS"')("|\b)[^\n]*\n.*$/inputdev/
T
p
}
}
' < /proc/bus/input/devices
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