Gentoo power-save - ThinkPad T430

#!/bin/sh

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#
#   ThinkPad T430
#
#   i5-3320M, 3rd Gen Intel GFX, SSD Intel 240G
#
#   https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-devices-power
#
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# Sound system
sudo echo '1' > '/sys/module/snd_hda_intel/parameters/power_save'
# Virt mem
sudo echo '1500' > '/proc/sys/vm/dirty_writeback_centisecs'
# I2C devices
#sudo echo 'auto' > '/sys/bus/i2c/devices/i2c-5/device/power/control'
#sudo echo 'auto' > '/sys/bus/i2c/devices/i2c-9/device/power/control'
# PCI devices
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:00:00.0/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.1/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.0/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:02:00.0/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:00:1d.0/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:00:14.0/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.2/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.2/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.0/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:00:1a.0/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:00:16.0/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:00:1b.0/power/control'
# TODO: Try to fix issue Gigabit Ethernet preventing sleep
sudo echo 'on' > '/sys/bus/pci/devices/0000:00:19.0/power/control'
#sudo echo 'auto' > '/sys/bus/pci/devices/0000:03:00.0/power/control'
# SCSI interfaces
#sudo echo 'min_power' > '/sys/class/scsi_host/host0/link_power_management_policy'
#sudo echo 'min_power' > '/sys/class/scsi_host/host1/link_power_management_policy'
#sudo echo 'min_power' > '/sys/class/scsi_host/host2/link_power_management_policy'
#sudo echo 'min_power' > '/sys/class/scsi_host/host3/link_power_management_policy'
#sudo echo 'min_power' > '/sys/class/scsi_host/host4/link_power_management_policy'
#sudo echo 'min_power' > '/sys/class/scsi_host/host5/link_power_management_policy'
# USB devices
sudo echo 'auto' > '/sys/bus/usb/devices/1-1.4/power/control'
sudo echo 'auto' > '/sys/bus/usb/devices/1-1.6/power/control'