saving uncommitted changes in /etc prior to emerge run

hprofile/profiles/power/._cfg0000_default

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+adp

hprofile/profiles/power/._cfg0000_profiles

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+adp
+bat
+dyn
+med
+quiet

hprofile/profiles/power/._cfg0000_ptest

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+#
+# power/ptest
+#
+
+local state="$(echo /sys/class/power_supply/A*)"
+
+if test -n "$state" -a -r "$state"; then
+	state=$(< "$state")
+	case "$state" in
+		(1) echo "adp";;
+		(0) echo "bat";;
+	esac
+fi
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/power/README

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+This is a sample power profile setup. It's different from other profiles in
+that there are no configuration files to be switched. All the magic happens
+in the start scripts, found in the scripts/ directory. ptest is still used to 
+determine the current profile of course.

hprofile/profiles/power/default

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+AC

hprofile/profiles/power/profiles

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+AC
+Medium
+Battery
+Dynamic

hprofile/profiles/power/ptest

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+#!/bin/bash
+
+# This script should echo only the name of the profile that should be used
+# It should assume it is called before any other scripts. In particular, it
+# cannot rely on environment variables set in /etc/profile or elsewhere. The
+# script may assume it will be run as root.
+
+profile="AC"
+
+if test -f /proc/acpi/ac_adapter/AC0/state ; then
+	status="$(cat /proc/acpi/ac_adapter/AC0/state)"
+	case "${status}" in
+		*on-line)
+			profile="AC"
+			;;
+		*off-line)
+			profile="Battery"
+			;;
+	esac
+fi
+
+echo "${profile}"

hprofile/profiles/power/scripts/AC.start

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+#!/bin/bash
+
+speedfreq -p performance
+echo "15" > /proc/acpi/asus/brn

hprofile/profiles/power/scripts/Battery.start

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+#!/bin/bash
+
+speedfreq -p powersave
+echo "6" > /proc/acpi/asus/brn

hprofile/profiles/power/scripts/Dynamic.start

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+#!/bin/bash
+
+speedfreq -p dynamic
+

hprofile/profiles/power/scripts/Medium.start

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+#!/bin/bash
+
+speedfreq -p 1000
+echo "11" > /proc/acpi/asus/brn

hprofile/profiles/power/scripts/adp.start

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+#
+# power/scripts/adp.start
+#
+
+start "powersave" "auto" "auto" "min_power" "1" "0" "1000" "default"
+start-profile "disk" "adp"
+
+if [[ "$DISPLAY" ]]; then
+	xbacklight -set 30
+	xset dpms 300 400 600
+fi
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/power/scripts/bat.start

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+#
+# power/scripts/bat.start
+#
+#
+
+start "powersave" "auto" "auto" "min_power" "1" "0" "1500" "powersave"
+start-profile "disk" "bat"
+
+if [[ "$DISPLAY" ]]; then
+	xbacklight -set 30
+	xset dpms 300 400 600
+fi
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/power/scripts/dyn.start

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+#
+# power/scripts/dyn.start
+#
+
+start "performance" "on" "on" "mix_power" "0" "1" "500" "performance"
+start-profile "disk" "dyn"
+
+if [[ "$DISPLAY" ]]; then
+	xbacklight -set 30
+	xset dpms 300 400 600
+fi
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/power/scripts/med.start

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+#
+# power/scripts/med.start
+#
+
+start "performance" "on" "on" "min_power" "0" "1" "500" "performance"
+start-profile "disk" "adp"
+
+if [[ "$DISPLAY" ]]; then
+	xbacklight -set 30
+	xset dpms 300 400 600
+fi
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/power/scripts/quiet.start

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+#
+# power/scripts/quiet.start
+#
+
+start "powersave" "auto" "auto" "min_power" "1" "0" "2500" "powersave"
+start-profile "disk" "quiet"
+
+if [[ "$DISPLAY" ]]; then
+	xbacklight -set 30
+	xset dpms 300 400 600
+fi
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/power/start

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+#
+# $Header: profiles/power/start Exp $
+#
+
+local cpu pci usb hda nmi vmw aspm scsi
+declare -A opt
+opt=(
+	[cpu]=${1:-powersave}
+	[pci]=${2:-auto}
+	[usb]=${3:-auto}
+	[hda]=${5:-1}
+	[nmi]=${6:-0}
+	[vmw]=${7:-1000}
+	[aspm]=${8:-default}
+	[scsi]=${4:-min_power}
+)
+
+for cpu in /sys/devices/system/cpu/cpu[0-9]*; do
+	echo ${opt[cpu]} >$cpu/cpufreq/scaling_governor
+done
+
+[ -e /sys/module/pcie_aspm/parameters/policy ] &&
+	echo ${opt[aspm]} >/sys/module/pcie_aspm/parameters/policy >/dev/null 2>&1
+for scsi in /sys/class/scsi_host/host[0-9]*; do
+	[ -e $scsi/link_power_management_policy ] || continue
+	case "$(< $scsi/proc_name)" in
+		(ahci|usb-storage)
+			echo ${opt[scsi]} >$scsi/link_power_management_policy;;
+		(*) ;;
+	esac
+done
+
+# set usb host to auto powersave
+for usb in /sys/bus/usb/devices/{usb[0-9],[0-9]-[0-9]}; do
+	echo ${opt[usb]} >$usb/power/control
+done
+
+# pci power control
+for pci in /sys/bus/pci/devices/0000:0*; do 
+	echo ${opt[pci]} >$pci/power/control
+done
+
+# snd-hda-intel powersave
+[ -e /sys/module/snd_hda_intel/parameters/power_save ] &&
+	echo ${opt[hda]} >/sys/module/snd_hda_intel/parameters/power_save
+
+# turn off NMI watchdog
+[ -e /proc/sys/kernel/nmi_watchdog ] &&
+	echo ${opt[nmi]} >/proc/sys/kernel/nmi_watchdog
+
+# VM write back timeout
+[ -e /proc/sys/vm/dirty_writeback_centisecs ] &&
+	echo ${opt[vmw]} >/proc/sys/vm/dirty_writeback_centisecs
+
+unset opt
+
+[[ "${HPROFILE[power]}" == "network" ]] || return
+local iface running
+
+for iface in $(ifconfig | sed -nre 's/(^[ew].*[0-9]{1}):.*/\1/p'); do
+	running="$(ifconfig $iface | sed -nre /$iface/'s/.*(RUNNING).*/\1/p')"
+	[[ "$running" ]] || ifconfig "$iface" down
+done
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#