openwrtv3/package/libs/sysfsutils/files/sysfsutils
Rodolfo Giometti 2437e0f670 package sysfsutils: add support for sysfs settings at boot
This patch is based on sysfsutils package's behaviour on Debian OS.

Signed-off-by: Rodolfo Giometti <giometti@linux.it>
2018-05-22 20:47:20 +02:00

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#!/bin/sh /etc/rc.common
# Copyright (C) 2017 Rodolfo Giometti <giometti@enneenne.com>
#
# Based on Debian's script /etc/init.d/sysfsutils by
# Martin Pitt <mpitt@debian.org>
load_conffile() {
FILE="$1"
sed 's/#.*$//; /^[[:space:]]*$/d;
s/^[[:space:]]*\([^=[:space:]]*\)[[:space:]]*\([^=[:space:]]*\)[[:space:]]*=[[:space:]]*\(.*\)/\1 \2 \3/' \
$FILE | {
while read f1 f2 f3; do
if [ "$f1" = "mode" -a -n "$f2" -a -n "$f3" ]; then
if [ -f "/sys/$f2" ] || [ -d "/sys/$f2" ]; then
chmod "$f3" "/sys/$f2"
else
echo "unknown attribute $f2"
fi
elif [ "$f1" = "owner" -a -n "$f2" -a -n "$f3" ]; then
if [ -f "/sys/$f2" ]; then
chown "$f3" "/sys/$f2"
else
echo "unknown attribute $f2"
fi
elif [ "$f1" -a -n "$f2" -a -z "$f3" ]; then
if [ -f "/sys/$f1" ]; then
# Some fields need a terminating newline, others
# need the terminating newline to be absent :-(
echo -n "$f2" > "/sys/$f1" 2>/dev/null ||
echo "$f2" > "/sys/$f1"
else
echo "unknown attribute $f1"
fi
else
echo "syntax error in $CONFFILE: '$f1' '$f2' '$f3'"
exit 1
fi
done
}
}
START=11
start() {
for file in /etc/sysfs.conf /etc/sysfs.d/*.conf; do
[ -r "$file" ] || continue
load_conffile "$file"
done
}