System Information

PowerTOP Version 2.12 ran at Tue Jul 7 15:44:38 2020
Kernel Version Linux version 5.7.7-arch1-1
System Name LG ElectronicsWhite Tip Mountain0.1
CPU Information 4 Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz
OS Information Arch Linux



Top 10 Power Consumers

Usage Events/s Category Description PW Estimate
177% 2.6 kWork intel_atomic_commit_work 7.20 W
0.2% 11.2 Process [PID 84289] /usr/bin/pulseaudio --daemonize=no 2.19 W
42.9 pkts/s Device Network interface: wlp1s0 (iwlwifi) 1.41 W
100.0% Device Radio device: btusb 539 mW
1.3% 4.5 Process [PID 84438] mplayer -loop 0 sf-fog.flv 51.8 mW
0.4% 18.7 Process [PID 84332] /usr/local/bin/enlightenment 19.0 mW
0.4% 2.4 Process [PID 84318] /usr/lib/Xorg -nolisten tcp vt07 -auth /var/run/slim.auth 14.6 mW
0.3% 66.8 Timer tick_sched_timer 13.1 mW
0.2% 7.0 kWork fence_work 7.95 mW
0.2% 1.1 Interrupt [7] sched(softirq) 6.53 mW

Processor Idle State Report

Package 0
   
   
   
C2 (pc2) 25.2%
C3 (pc3) 1.2%
C6 (pc6) 5.9%
C7 (pc7) 25.2%
C8 (pc8) 0.0%
C9 (pc9) 0.0%
C10 (pc10) 0.0%
   
   
Core 0
   
   
   
   
C3 (cc3) 0.7%
C6 (cc6) 0.4%
C7 (cc7) 73.8%
   
   
   
   
   
Core 1
   
   
   
   
C3 (cc3) 0.4%
C6 (cc6) 0.3%
C7 (cc7) 80.4%
   
   
   
   
   
GPU 1868787570
   
Powered On 32.6%
RC6 67.4%
RC6p 0.0%
RC6pp 0.0%
   
   
   
   
   
   
   
  CPU 0 CPU 1
C0 active 8.2%   6.6%  
POLL 0.0% 0.0 ms 0.0% 0.1 ms
C1 0.0% 0.0 ms 0.0% 0.1 ms
       
C3 0.7% 0.2 ms 0.5% 0.2 ms
C6 0.4% 0.4 ms 0.3% 0.4 ms
C7s 3.1% 0.7 ms 1.7% 0.6 ms
C8 12.1% 1.3 ms 7.4% 1.0 ms
C9 51.0% 2.3 ms 45.7% 2.0 ms
       
C10 17.0% 7.1 ms 32.2% 2.9 ms
C1E 0.1% 0.1 ms 0.1% 0.1 ms
  CPU 2 CPU 3
C0 active 5.9%   5.2%  
POLL 0.0% 0.0 ms 0.0% 0.0 ms
C1 0.0% 0.0 ms 0.0% 0.0 ms
       
C3 0.5% 0.3 ms 0.3% 0.2 ms
C6 0.3% 0.4 ms 0.2% 0.4 ms
C7s 2.3% 0.7 ms 1.2% 0.5 ms
C8 10.8% 1.3 ms 4.8% 1.0 ms
C9 67.2% 2.3 ms 30.3% 2.2 ms
       
C10 7.6% 7.1 ms 53.4% 5.4 ms
C1E 0.1% 0.1 ms 0.0% 0.1 ms
 

Processor Frequency Report

Package 0
   
Idle  
1500 MHz  
1400 MHz  
1.60 GHz  
1100 MHz  
1200 MHz  
1000 MHz  
900 MHz  
800 MHz  
2.60 GHz  
1.71 GHz  
1300 MHz  
1.80 GHz  
1.91 GHz  
2.10 GHz  
2.00 GHz  
2.21 GHz  
2.50 GHz  
2.40 GHz  
2.31 GHz  
Core 0
   
Idle  
1500 MHz  
1400 MHz  
1.60 GHz  
1100 MHz  
1000 MHz  
1200 MHz  
900 MHz  
800 MHz  
2.60 GHz  
1.71 GHz  
1300 MHz  
1.80 GHz  
1.91 GHz  
2.10 GHz  
2.00 GHz  
2.21 GHz  
2.50 GHz  
2.40 GHz  
2.31 GHz  
Core 1
   
Idle  
1500 MHz  
1400 MHz  
1.60 GHz  
1100 MHz  
1200 MHz  
1000 MHz  
900 MHz  
800 MHz  
2.60 GHz  
1.71 GHz  
1300 MHz  
1.80 GHz  
1.91 GHz  
2.10 GHz  
2.00 GHz  
2.21 GHz  
2.50 GHz  
2.40 GHz  
2.31 GHz  
  CPU 0 CPU 1
Average 1215 MHz 1260 MHz
Idle    
1500 MHz    
1400 MHz    
1.60 GHz    
1100 MHz    
1200 MHz    
1000 MHz    
900 MHz    
800 MHz    
2.60 GHz    
1.71 GHz    
1300 MHz    
1.80 GHz    
1.91 GHz    
2.10 GHz    
2.00 GHz    
2.21 GHz    
2.50 GHz    
2.40 GHz    
2.31 GHz    
  CPU 2 CPU 3
Average 1226 MHz 1246 MHz
Idle    
1500 MHz    
1.60 GHz    
1400 MHz    
1100 MHz    
1200 MHz    
1000 MHz    
900 MHz    
800 MHz    
2.60 GHz    
1.71 GHz    
1300 MHz    
1.80 GHz    
1.91 GHz    
2.10 GHz    
2.00 GHz    
2.21 GHz    
2.50 GHz    
2.40 GHz    
2.31 GHz    
 

Overview of Software Power Consumers

Usage Wakeups/s GPU ops/s Disk IO/s GFX Wakeups/s Category Description PW Estimate
1777 ms/s 2.6 kWork intel_atomic_commit_work 7.20 W
1.8 ms/s 11.2 Process [PID 84289] /usr/bin/pulseaudio --daemonize=no 2.19 W
12.7 ms/s 4.5 2.4 Process [PID 84438] mplayer -loop 0 sf-fog.flv 51.8 mW
4.5 ms/s 18.7 6.9 Process [PID 84332] /usr/local/bin/enlightenment 19.0 mW
3.6 ms/s 2.4 0.8 Process [PID 84318] /usr/lib/Xorg -nolisten tcp vt07 -auth /var/run/slim.auth 14.6 mW
2.5 ms/s 66.8 Timer tick_sched_timer 13.1 mW
1.9 ms/s 7.0 kWork fence_work 7.95 mW
1.6 ms/s 1.1 Interrupt [7] sched(softirq) 6.53 mW
1.5 ms/s Timer delayed_work_timer_fn 6.20 mW
1.2 ms/s 2.3 Interrupt [42] i915 5.13 mW
0.7 ms/s Timer process_timeout 2.92 mW
688.5 us/s 0.06 Process [PID 84487] pool-udisksd 2.79 mW
638.9 us/s 0.01 Interrupt [1] timer(softirq) 2.59 mW
572.2 us/s 0.08 Interrupt [9] RCU(softirq) 2.32 mW
571.4 us/s 0.02 kWork acpi_ec_event_handler 2.32 mW
469.8 us/s 1.4 Process [PID 40301] sshd: raster@pts/0,pts/1,pts/2,pts/6,pts/4,pts/3,pts/5,pts/7,pts/8,pts/9 1.96 mW
426.9 us/s 2.5 kWork flush_to_ldisc 1.83 mW
407.7 us/s 2.1 kWork __i915_gem_free_work 1.74 mW
380.9 us/s 0.4 Interrupt [9] acpi 1.56 mW
313.7 us/s 1.7 Timer hrtimer_wakeup 1.34 mW
250.9 us/s 6.8 kWork kfree_rcu_work 1.30 mW
286.4 us/s 2.5 kWork intel_atomic_cleanup_work 1.27 mW
238.8 us/s 4.1 kWork engine_retire 1.14 mW
212.4 us/s 3.7 1.9 Process [PID 381] [irq/47-iwlwifi] 1.02 mW
171.1 us/s 7.2 kWork kfree_rcu_monitor 996 uW
165.7 us/s Process [PID 82323] [kworker/u17:0] 671 uW
99.6 us/s 5.8 Process [PID 11] [rcu_preempt] 647 uW
109.5 us/s 1.3 Interrupt [47] iwlwifi 499 uW
121.1 us/s 0.01 0.0 Process [PID 83105] [kworker/u16:4] 491 uW
94.5 us/s Process [PID 84230] [kworker/u16:1] 383 uW
86.7 us/s 0.02 kWork acpi_os_execute_deferred 352 uW
72.3 us/s Process [PID 82819] [kworker/1:1] 293 uW
70.1 us/s kWork __intel_wakeref_put_work 284 uW
49.2 us/s 0.02 kWork acpi_ec_event_processor 200 uW
38.7 us/s 0.6 kWork psi_avgs_work 183 uW
42.3 us/s Process [PID 184] [kworker/0:1H] 171 uW
40.7 us/s Process [PID 81184] [kworker/3:2] 165 uW
40.1 us/s 0.01 Process [PID 83894] /usr/lib/gvfs-udisks2-volume-monitor 163 uW
30.4 us/s 0.8 kWork gc_worker 155 uW
32.5 us/s Process [PID 84192] [kworker/2:1] 132 uW
17.8 us/s 1.1 kWork rps_work 117 uW
24.5 us/s 0.4 Process [PID 35] [ksoftirqd/3] 115 uW
25.8 us/s 0.17 Process [PID 84433] powertop --time=120 --html=e.html 112 uW
20.4 us/s 0.4 Process [PID 21] [ksoftirqd/1] 0 mW
23.3 us/s Process [PID 82875] [kworker/0:3] 0 mW
17.7 us/s Timer clocksource_watchdog 0 mW
16.7 us/s Process [PID 84275] [kworker/u16:0] 0 mW
14.3 us/s 0.02 Process [PID 42027] /usr/lib/upowerd 0 mW
13.2 us/s kWork vmstat_update 0 mW
9.2 us/s 0.01 kWork wb_workfn 0 mW
8.8 us/s Process [PID 188] [kworker/2:1H] 0 mW
6.9 us/s 0.12 Interrupt [4] block(softirq) 0 mW
7.9 us/s kWork intel_atomic_helper_free_state_ 0 mW
7.4 us/s 0.02 kWork delayed_fput 0 mW
6.7 us/s 0.07 Process [PID 9] [ksoftirqd/0] 0 mW
5.4 us/s 0.12 kWork iwl_mvm_tcm_work 0 mW
5.1 us/s Interrupt [41] ahci[0000:00:1f.2] 0 mW
4.8 us/s Process [PID 145] [kworker/3:1H] 0 mW
3.1 us/s 0.12 Interrupt [6] tasklet(softirq) 0 mW
4.3 us/s Process [PID 531] /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only 0 mW
2.8 us/s 0.08 kWork pci_pme_list_scan 0 mW
3.6 us/s Timer blk_stat_timer_fn 0 mW
2.3 us/s 0.11 Timer watchdog_timer_fn 0 mW
2.7 us/s 0.06 kWork blk_mq_run_work_fn 0 mW
2.6 us/s 0.02 Process [PID 955] /usr/lib/udisks2/udisksd 0 mW
2.4 us/s Timer tcp_delack_timer 0 mW
1.2 us/s 0.09 Timer sched_rt_period_timer 0 mW
1.7 us/s 0.05 kWork blk_mq_requeue_work 0 mW
1.9 us/s 0.01 Process [PID 189] [jbd2/sda3-8] 0 mW
1.9 us/s Timer tcp_keepalive_timer 0 mW
1.9 us/s Process [PID 28] [ksoftirqd/2] 0 mW
0.8 us/s 0.06 kWork ieee80211_iface_work 0 mW
1.4 us/s Process [PID 161] [kworker/1:1H] 0 mW
1.4 us/s Timer neigh_timer_handler 0 mW
1.1 us/s 0.02 Process [PID 83903] /usr/lib/gvfs-udisks2-volume-monitor 0 mW
1.1 us/s 0.01 Process [PID 50770] jed evas_private.h 0 mW
1.0 us/s 0.02 Process [PID 84361] /usr/lib/PackageKit/packagekitd 0 mW
1.0 us/s 0.01 Process [PID 84487] udisksd 0 mW
0.9 us/s 0.02 kWork drm_mode_rmfb_work_fn 0 mW
0.1 us/s 0.09 kWork vmstat_shepherd 0 mW
1.0 us/s kWork power_supply_changed_work 0 mW
0.9 us/s Timer writeout_period 0 mW
0.8 us/s Timer laptop_mode_timer_fn 0 mW
0.8 us/s Process [PID 78023] jed power-usage.txt 0 mW
0.8 us/s Timer blk_rq_timed_out_timer 0 mW
0.5 us/s 0.02 kWork ext4_end_io_rsv_work 0 mW
0.5 us/s 0.02 Process [PID 42030] /usr/lib/accounts-daemon 0 mW
0.6 us/s kWork free_work 0 mW
0.5 us/s 0.01 Process [PID 549] /usr/bin/wpa_supplicant -u -s -O /run/wpa_supplicant 0 mW
0.4 us/s 0.02 kWork iwl_mvm_async_handlers_wk 0 mW
0.2 us/s 0.03 kWork handle_update 0 mW
0.4 us/s kWork neigh_periodic_work 0 mW
0.4 us/s Timer commit_timeout 0 mW
0.3 us/s kWork __cfg80211_scan_done 0 mW
0.3 us/s 0.01 Process [PID 986] /usr/lib/rtkit-daemon 0 mW
0.2 us/s 0.01 kWork ieee80211_scan_work 0 mW
0.2 us/s 0.01 kWork blk_mq_timeout_work 0 mW
0.1 us/s 0.01 kWork iwl_pcie_rx_allocator_work 0 mW






Device Power Report

Usage Device Name PW Estimate
181.7% CPU misc 6.17 W
100.0% Audio codec hwC1D0: Realtek (pulseaudio ) 2.19 W
42.9 pkts/s Network interface: wlp1s0 (iwlwifi)
181.7% DRAM 658 mW
100.0% Radio device: btusb 539 mW
181.7% CPU core 538 mW
100.0% USB device: Atmel maXTouch Digitizer (Atmel) 0 mW
100.0% USB device: usb-device-0424-2512 0 mW
100.0% USB device: Windows 8 Sensor Hub (Invensense) 0 mW
100.0% USB device: xHCI Host Controller 0 mW
25.0% Display backlight 0 mW
0.0% Audio codec hwC0D0: Intel 0 mW
0.0% USB device: USB2.0-CRW (Generic) 0 mW
0.0% USB device: xHCI Host Controller 0 mW
0.0% USB device: LG HD WebCam (Generic) 0 mW
0.0% USB device: usb-device-8087-07dc 0 mW
0.0% USB device: usb-device-0424-2512 0 mW
100.0% PCI Device: Intel Corporation 8 Series SATA Controller 1 [AHCI mode]
100.0% PCI Device: Intel Corporation 8 Series HD Audio Controller
100.0% runtime-HID-SENSOR-200073.3.auto
100.0% Radio device: iwlwifi
100.0% PCI Device: Intel Corporation 8 Series PCI Express Root Port 1
100.0% PCI Device: Intel Corporation 8 Series LPC Controller
100.0% PCI Device: Intel Corporation 8 Series HECI #0
100.0% PCI Device: Intel Corporation Wireless 7260
100.0% PCI Device: Intel Corporation Haswell-ULT Thermal Subsystem
100.0% runtime-HID-SENSOR-200083.5.auto
100.0% PCI Device: Intel Corporation 8 Series USB xHCI HC
100.0% PCI Device: Intel Corporation Haswell-ULT DRAM Controller
100.0% PCI Device: Intel Corporation Haswell-ULT Integrated Graphics Controller
0.0% runtime-INT33D3:00
0.0% USB device: usb-device-8087-8000
0.0% runtime-ACPI0003:00
0.0% runtime-PNP0C0A:00
0.0% runtime-PNP0C09:00
0.0% runtime-reg-dummy
0.0% runtime-alarmtimer.0.auto
0.0% runtime-PNP0C14:00
0.0% PCI Device: Intel Corporation 8 Series USB EHCI #1
0.0% PCI Device: Intel Corporation Haswell-ULT HD Audio Controller
0.0% PCI Device: Intel Corporation 8 Series SMBus Controller
0.0% runtime-regulatory.0
0.0% runtime-microcode
0.0% runtime-intel_rapl_msr.0
0.0% runtime-rtsx_usb_sdmmc.8.auto
0.0% runtime-PNP0C0C:00
0.0% runtime-ACPI0008:00
0.0% runtime-rtc-efi.0
0.0% runtime-INT0800:00
0.0% runtime-HID-SENSOR-20008a.7.auto
0.0% runtime-lg-laptop
0.0% runtime-efi-framebuffer.0
0.0% runtime-coretemp.0
0.0% I2C Adapter (i2c-4): i915 gmbus dpb
0.0% runtime-LGEX0816:00
0.0% runtime-HID-SENSOR-200076.4.auto
0.0% I2C Adapter (i2c-7): SMBus I801 adapter at efa0
0.0% runtime-PNP0C0E:00
0.0% runtime-PNP0103:00
0.0% runtime-HID-SENSOR-200001.2.auto
0.0% runtime-rtsx_usb_ms.9.auto
0.0% runtime-efivars.0
0.0% runtime-serial8250
0.0% runtime-i8042
0.0% runtime-iTCO_wdt.1.auto
0.0% USB device: EHCI Host Controller
0.0% runtime-INT3400:00
0.0% runtime-pcspkr
0.0% runtime-HID-SENSOR-200086.6.auto
0.0% I2C Adapter (i2c-5): i915 gmbus dpd
0.0% runtime-intel-spi
0.0% I2C Adapter (i2c-3): i915 gmbus dpc
0.0% I2C Adapter (i2c-1): i915 gmbus vga
0.0% I2C Adapter (i2c-6): AUX A/port A
0.0% I2C Adapter (i2c-0): i915 gmbus ssc
0.0% I2C Adapter (i2c-2): i915 gmbus panel
0.0% runtime-LGEX0815:00

Process Device Activity

Process Device
systemd /dev/autofs
/dev/kmsg
/dev/rfkill
systemd-journal /dev/kmsg
/dev/kmsg
acpid /dev/input/event0
/dev/input/event1
/dev/input/event10
/dev/input/event11
/dev/input/event12
/dev/input/event13
/dev/input/event2
/dev/input/event3
/dev/input/event4
/dev/input/event7
/dev/input/event8
/dev/input/event9
connmand /dev/rfkill
systemd-logind /dev/input/event0
/dev/input/event1
/dev/input/event2
/dev/input/event4
wpa_supplicant /dev/rfkill
/dev/rfkill
bluetoothd /dev/rfkill
gvfsd-fuse /dev/fuse
pulseaudio /dev/snd/controlC0
/dev/snd/controlC1
/dev/snd/controlC1
/dev/snd/controlC1
/dev/snd/controlC1
/dev/snd/pcmC1D0p
Xorg /dev/dri/card0
/dev/dri/card0
/dev/dri/card0
/dev/input/event0
/dev/input/event1
/dev/input/event14
/dev/input/event15
/dev/input/event16
/dev/input/event2
/dev/input/event3
/dev/input/event4
/dev/input/event5
/dev/vga_arbiter
enlightenment /dev/dri/card0
/dev/dri/card0
/dev/dri/card0
/dev/zero
efreetd /dev/zero

AHCI ALPM Residency Statistics - Not supported on this macine

Software Settings in Need of Tuning

Description Script
VM writeback timeout echo '1500' > '/proc/sys/vm/dirty_writeback_centisecs';
Autosuspend for USB device Atmel maXTouch Digitizer [Atmel] echo 'auto' > '/sys/bus/usb/devices/2-3/power/control';
Autosuspend for USB device Windows 8 Sensor Hub [Invensense] echo 'auto' > '/sys/bus/usb/devices/2-6.2/power/control';
Runtime PM for PCI Device Intel Corporation 8 Series HECI #0 echo 'auto' > '/sys/bus/pci/devices/0000:00:16.0/power/control';
Runtime PM for PCI Device Intel Corporation 8 Series PCI Express Root Port 1 echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.0/power/control';
Runtime PM for disk sda echo 'auto' > '/sys/block/sda/device/power/control';
Runtime PM for port ata3 of PCI device: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.2/ata3/power/control';
Runtime PM for port ata4 of PCI device: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.2/ata4/power/control';
Runtime PM for port ata1 of PCI device: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.2/ata1/power/control';
Runtime PM for port ata2 of PCI device: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.2/ata2/power/control';

Untunable Software Issues

Description
I2C Adapter i2c-6 has no runtime power management

Optimal Tuned Software Settings

Description
Enable SATA link power management for host1
Enable SATA link power management for host3
Enable SATA link power management for host0
Enable Audio codec power management
Enable SATA link power management for host2
Bluetooth device interface status
NMI watchdog should be turned off
Autosuspend for unknown USB device 1-1 (8087:8000)
Autosuspend for unknown USB device 2-5 (0424:2512)
Autosuspend for USB device USB2.0-CRW [Generic]
Autosuspend for USB device xHCI Host Controller [usb3]
Autosuspend for USB device EHCI Host Controller [usb1]
Autosuspend for USB device LG HD WebCam [Generic]
Autosuspend for USB device xHCI Host Controller [usb2]
Autosuspend for unknown USB device 2-4 (8087:07dc)
Runtime PM for I2C Adapter i2c-3 (i915 gmbus dpc)
Runtime PM for I2C Adapter i2c-4 (i915 gmbus dpb)
Runtime PM for I2C Adapter i2c-2 (i915 gmbus panel)
Runtime PM for I2C Adapter i2c-0 (i915 gmbus ssc)
Runtime PM for I2C Adapter i2c-7 (SMBus I801 adapter at efa0)
Runtime PM for I2C Adapter i2c-5 (i915 gmbus dpd)
Autosuspend for unknown USB device 2-6 (0424:2512)
Runtime PM for I2C Adapter i2c-1 (i915 gmbus vga)
Runtime PM for PCI Device Intel Corporation Wireless 7260
Runtime PM for PCI Device Intel Corporation 8 Series HD Audio Controller
Runtime PM for PCI Device Intel Corporation 8 Series SMBus Controller
Runtime PM for PCI Device Intel Corporation Haswell-ULT DRAM Controller
Runtime PM for PCI Device Intel Corporation Haswell-ULT HD Audio Controller
Runtime PM for PCI Device Intel Corporation 8 Series USB EHCI #1
Runtime PM for PCI Device Intel Corporation Haswell-ULT Integrated Graphics Controller
Runtime PM for PCI Device Intel Corporation Haswell-ULT Thermal Subsystem
Runtime PM for PCI Device Intel Corporation 8 Series LPC Controller
Runtime PM for PCI Device Intel Corporation 8 Series SATA Controller 1 [AHCI mode]
Runtime PM for PCI Device Intel Corporation 8 Series USB xHCI HC

Wake status of the devices

Description Script
Wake-on-lan status for device wlp1s0 echo 'enabled' > '/sys/class/net/wlp1s0/device/power/wakeup';
Wake status for USB device 2-6.1 echo 'enabled' > '/sys/bus/usb/devices/2-6.1/power/wakeup';
Wake status for USB device 2-3 echo 'enabled' > '/sys/bus/usb/devices/2-3/power/wakeup';
Wake status for USB device usb3 echo 'enabled' > '/sys/bus/usb/devices/usb3/power/wakeup';
Wake status for USB device usb1 echo 'enabled' > '/sys/bus/usb/devices/usb1/power/wakeup';
Wake status for USB device 2-6 echo 'enabled' > '/sys/bus/usb/devices/2-6/power/wakeup';
Wake status for USB device 1-1 echo 'enabled' > '/sys/bus/usb/devices/1-1/power/wakeup';
Wake status for USB device 2-6.2 echo 'enabled' > '/sys/bus/usb/devices/2-6.2/power/wakeup';
Wake status for USB device 2-4 echo 'enabled' > '/sys/bus/usb/devices/2-4/power/wakeup';
Wake status for USB device usb2 echo 'enabled' > '/sys/bus/usb/devices/usb2/power/wakeup';
Wake status for USB device 2-5 echo 'enabled' > '/sys/bus/usb/devices/2-5/power/wakeup';