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# -*- sh -*-
# vim:ft=sh:ts=8:sw=4:noet
AddConfigHandler ACPISleepConfigEnabler
AddOptionHandler ACPISleepOptionHandler
AddConfigHelp "UseACPISleep <state>" "Enables the use of /proc/acpi/sleep for suspending the machine. Be aware that this method is deprecated in favour of using /sys/power/state (with the sysfs_power_state scriptlet). This requires a kernel with ACPI support built in. <state> should generally be 3 (for suspend-to-RAM), or 4 (for suspend-to-disk). Note: You should not use this if you want to use TuxOnIce."
AddShortOption "n"
AddLongOption "no-suspend"
ACPI_SLEEP_FILE=/proc/acpi/sleep
ACPISleepConfigEnabler() {
[ "$1" != "useacpisleep" ] && return 1
[ -n "$USING_ACPI_SLEEP" ] && return 0
if [ -n "$NO_COMPLAIN_UNSUPPORTED" ] ; then
# Just bail silently if we don't detect it.
if ! test -f $ACPI_SLEEP_FILE ; then
return 0
fi
fi
UsingSuspendMethod acpi_sleep
AddSuspendHook 10 EnsureACPISleepCapable
AddSuspendHook 99 DoACPISleep
USING_ACPI_SLEEP=$2
return 0
}
ACPISleepOptionHandler() {
[ -z "$USING_ACPI_SLEEP" ] && return 1
case $1 in
-n|--no-suspend)
ACPI_SLEEP_NO_SUSPEND=1
;;
*)
return 1
esac
return 0
}
DoACPISleep() {
if [ -z "$ACPI_SLEEP_NO_SUSPEND" ] ; then
vecho 1 "$EXE: Activating ACPI sleep state $USING_ACPI_SLEEP ..."
/bin/echo -n $USING_ACPI_SLEEP > $ACPI_SLEEP_FILE
else
vecho 1 "$EXE: Not actually suspending (--no-suspend given)"
fi
return 0
}
# EnsureACPISleepCapable: makes sure we have /proc/acpi/sleep.
EnsureACPISleepCapable() {
if ! test -f $ACPI_SLEEP_FILE ; then
vecho 0 "Your kernel does not appear to have ACPI sleep support."
return 2
fi
return 0
}
# $Id$
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