postinst is in i2c-tools 3.1.1-1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | #!/bin/sh
set -e
case "$1" in
configure)
# Add the i2c group unless it's already there
if ! getent group i2c >/dev/null; then
addgroup --quiet --system i2c || true
fi
# Create the device node if MAKEDEV exists
if [ -x /sbin/MAKEDEV ] && [ ! -c /dev/i2c-0 ]; then
(cd /dev && MAKEDEV i2c)
for i in `seq 1 16` ; do
dev=/dev/i2c-$i
if [ -c $dev ]; then
chmod 0660 $dev
chown root:i2c $dev
fi
done
fi
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
# Automatically added by dh_installudev
if [ "$1" = configure ]; then
if [ -e "/etc/udev/rules.d/z60_i2c-tools.rules" ]; then
echo "Preserving user changes to /etc/udev/rules.d/40-i2c-tools.rules ..."
if [ -e "/etc/udev/rules.d/40-i2c-tools.rules" ]; then
mv -f "/etc/udev/rules.d/40-i2c-tools.rules" "/etc/udev/rules.d/40-i2c-tools.rules.dpkg-new"
fi
mv -f "/etc/udev/rules.d/z60_i2c-tools.rules" "/etc/udev/rules.d/40-i2c-tools.rules"
fi
fi
# End automatically added section
exit 0
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