Il Wed, Jun 14, 2006 at 04:20:25PM +0000, Jason Lunz ha scritto:
> [EMAIL PROTECTED] said:
> > [EMAIL PROTECTED] said:
> >> Or if somebody wants to make a scriptlet to support it (use the
> >> sysfs_power_state scriptlet as a guide), I'll happily merge it for
> >> the next release.
> >
> > That's exactly what I did. I'll post it tonight when my laptop's on.
> > It's completely straightforward.
>
> Here's the scriptlet I'm currently using. It's adapted from
> the sysfs_power_state scriptlet. I've tried to future-proof it by
> calling the 'suspend' program 's2disk'.
Hi Jason,
I'm familiar with hibernate script, but I see a couple of minor issues:
> # -*- sh -*-
> # vim:ft=sh:ts=8:sw=4:noet
>
> AddConfigHandler USuspendConfigEnabler
> AddOptionHandler USuspendOptionHandler
>
> AddConfigHelp "UseUSuspend" "Enables the use of the 's2disk' program for
> suspending the machine. This requires a kernel supporting the /dev/snapshot
> interface."
>
> AddShortOption "n"
> AddLongOption "no-suspend"
> AddOptionHelp "-n, --no-suspend (requires UseUSuspend to be set)" "Disables
> actually suspending the system. This is useful for testing the suspend script
> itself."
>
> SUSPEND_PROG=/usr/local/sbin/s2disk
> SUSPEND_STATE_FILE=/sys/power/state
>
> USuspendConfigEnabler() {
> [ "$1" != "useususpend" ] && return 1
> [ -n "$USING_SUSPEND_STATE" ] && return 0
> UsingSuspendMethod new_suspend
> AddSuspendHook 10 EnsureUSuspendCapable
> AddSuspendHook 99 DoUSuspend
> USING_SUSPEND_STATE=$2
> return 0
> }
>
> USuspendOptionHandler() {
> [ -z "$USING_SUSPEND_STATE" ] && return 1
> case $1 in
> -n|--no-suspend)
> SUSPEND_STATE_NO_SUSPEND=1
> ;;
> *)
> return 1
> esac
> return 0
> }
>
> DoUSuspend() {
> if [ -z "$SUSPEND_STATE_NO_SUSPEND" ] ; then
> vecho 1 "$EXE: Running $SUSPEND_PROG ..."
> $SUSPEND_PROG
suspend may fail, yet you don't propagate the return value. Is this
correct?
> else
> vecho 1 "$EXE: Not actually suspending (--no-suspend given)"
> fi
> return 0
> }
>
> # EnsureUSuspendCapable: makes sure we have /sys/power/state and that
> # the selection option is one of the available suspend modes.
> EnsureUSuspendCapable() {
> if ! test -f $SUSPEND_PROG ; then
> vecho 0 "Your kernel does not have $SUSPEND_PROG."
It's not really kernel fault here ;)
Also in this function you may want to check for /dev/snapshot as well.
> return 2
> fi
> if ! test -f $SUSPEND_STATE_FILE ; then
> vecho 0 "Your kernel does not have power management built in."
> return 2
> fi
>
> return 0
> }
Luca
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