System Information

PowerTOP Version 2.12 ran at Tue Jul 7 14:53:20 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
0.1% 5.9 Process [PID 79212] /usr/bin/pulseaudio --daemonize=no 2.28 W
43.9 pkts/s Device Network interface: wlp1s0 (iwlwifi) 1.61 W
100.0% Device Radio device: btusb 180 mW
3.6% 10.6 Process [PID 79210] mplayer -loop 0 sf-fog.flv 169 mW
0.6% 0.14 Process [PID 79190] /usr/lib/Xorg -nolisten tcp vt07 -auth /var/run/slim.auth 27.4 mW
0.2% 57.5 Timer tick_sched_timer 9.16 mW
0.2% 12.5 Process [PID 79213] /usr/bin/pulseaudio --daemonize=no 7.40 mW
0.1% 2.5 Interrupt [7] sched(softirq) 6.26 mW
0.1% 4.0 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 4.86 mW
0.1% 2.2 Process [PID 79211] mplayer -loop 0 sf-fog.flv 3.30 mW

Processor Idle State Report

Package 0
   
   
   
C2 (pc2) 28.9%
C3 (pc3) 0.8%
C6 (pc6) 7.0%
C7 (pc7) 30.2%
C8 (pc8) 0.0%
C9 (pc9) 0.0%
C10 (pc10) 0.0%
   
   
Core 0
   
   
   
   
C3 (cc3) 0.3%
C6 (cc6) 0.2%
C7 (cc7) 82.0%
   
   
   
   
   
Core 1
   
   
   
   
C3 (cc3) 0.1%
C6 (cc6) 0.1%
C7 (cc7) 85.9%
   
   
   
   
   
GPU 1868787570
   
Powered On 12.5%
RC6 87.5%
RC6p 0.0%
RC6pp 0.0%
   
   
   
   
   
   
   
  CPU 0 CPU 1
C0 active 6.3%   3.2%  
POLL 0.0% 0.0 ms 0.0% 0.0 ms
C1 0.0% 0.0 ms 0.0% 0.3 ms
       
C3 0.3% 0.3 ms 0.1% 0.2 ms
C6 0.2% 0.5 ms 0.0% 0.4 ms
C7s 1.2% 0.7 ms 0.3% 0.6 ms
C8 5.1% 1.3 ms 1.0% 1.0 ms
C9 33.5% 2.7 ms 6.4% 2.3 ms
       
C10 47.4% 8.2 ms 85.9% 8.0 ms
C1E 0.0% 0.1 ms 0.0% 0.0 ms
  CPU 2 CPU 3
C0 active 3.8%   3.8%  
POLL 0.0% 0.0 ms 0.0% 0.0 ms
C1 0.0% 0.0 ms 0.0% 0.0 ms
       
C3 0.2% 0.2 ms 0.0% 0.2 ms
C6 0.1% 0.4 ms 0.0% 0.4 ms
C7s 0.5% 0.7 ms 0.1% 0.6 ms
C8 2.3% 1.2 ms 0.4% 1.0 ms
C9 32.6% 2.7 ms 3.3% 2.5 ms
       
C10 56.9% 10.7 ms 88.9% 12.0 ms
C1E 0.0% 0.1 ms 0.0% 0.1 ms
 

Processor Frequency Report

Package 0
   
Idle  
2.60 GHz  
1400 MHz  
1300 MHz  
1500 MHz  
1100 MHz  
1000 MHz  
900 MHz  
800 MHz  
1.60 GHz  
1200 MHz  
2.00 GHz  
1.91 GHz  
1.80 GHz  
1.71 GHz  
2.21 GHz  
2.10 GHz  
2.50 GHz  
2.31 GHz  
2.40 GHz  
Core 0
   
Idle  
2.60 GHz  
1400 MHz  
1500 MHz  
1300 MHz  
1100 MHz  
1000 MHz  
900 MHz  
800 MHz  
1.60 GHz  
1200 MHz  
2.00 GHz  
1.91 GHz  
1.80 GHz  
1.71 GHz  
2.21 GHz  
2.10 GHz  
2.50 GHz  
2.31 GHz  
2.40 GHz  
Core 1
   
Idle  
2.60 GHz  
1400 MHz  
1300 MHz  
1500 MHz  
1100 MHz  
1000 MHz  
900 MHz  
800 MHz  
1.60 GHz  
1200 MHz  
2.00 GHz  
1.91 GHz  
1.80 GHz  
1.71 GHz  
2.21 GHz  
2.10 GHz  
2.50 GHz  
2.31 GHz  
2.40 GHz  
  CPU 0 CPU 1
Average 1191 MHz 1169 MHz
Idle    
2.60 GHz    
1400 MHz    
1500 MHz    
1100 MHz    
1000 MHz    
900 MHz    
800 MHz    
1300 MHz    
1.60 GHz    
1200 MHz    
2.00 GHz    
1.91 GHz    
1.80 GHz    
1.71 GHz    
2.21 GHz    
2.10 GHz    
2.50 GHz    
2.31 GHz    
2.40 GHz    
  CPU 2 CPU 3
Average 1191 MHz 1219 MHz
Idle    
2.60 GHz    
1400 MHz    
1300 MHz    
1500 MHz    
1100 MHz    
1000 MHz    
900 MHz    
800 MHz    
1200 MHz    
2.00 GHz    
1.91 GHz    
1.60 GHz    
1.80 GHz    
1.71 GHz    
2.21 GHz    
2.10 GHz    
2.50 GHz    
2.31 GHz    
2.40 GHz    
 

Overview of Software Power Consumers

Usage Wakeups/s GPU ops/s Disk IO/s GFX Wakeups/s Category Description PW Estimate
1.4 ms/s 5.9 Process [PID 79212] /usr/bin/pulseaudio --daemonize=no 2.28 W
36.3 ms/s 10.6 4.4 Process [PID 79210] mplayer -loop 0 sf-fog.flv 169 mW
6.1 ms/s 0.14 Process [PID 79190] /usr/lib/Xorg -nolisten tcp vt07 -auth /var/run/slim.auth 27.4 mW
2.0 ms/s 57.5 Timer tick_sched_timer 9.16 mW
1.6 ms/s 12.5 Process [PID 79213] /usr/bin/pulseaudio --daemonize=no 7.40 mW
1.4 ms/s 2.5 Interrupt [7] sched(softirq) 6.26 mW
1.1 ms/s 4.0 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 4.86 mW
0.7 ms/s 2.2 Process [PID 79211] mplayer -loop 0 sf-fog.flv 3.30 mW
637.1 us/s 2.2 Timer hrtimer_wakeup 2.89 mW
604.2 us/s 0.01 Interrupt [1] timer(softirq) 2.74 mW
549.2 us/s 7.8 kWork flush_to_ldisc 2.49 mW
532.0 us/s Timer delayed_work_timer_fn 2.41 mW
529.9 us/s Timer process_timeout 2.40 mW
496.7 us/s 7.1 Process [PID 381] [irq/47-iwlwifi] 2.25 mW
436.5 us/s 8.1 kWork fence_work 1.98 mW
352.1 us/s 0.03 Interrupt [9] RCU(softirq) 1.59 mW
273.5 us/s 6.8 Interrupt [47] iwlwifi 1.24 mW
230.3 us/s 0.05 kWork acpi_ec_event_handler 1.04 mW
176.4 us/s 6.8 Process [PID 11] [rcu_preempt] 799 uW
124.3 us/s 0.6 Interrupt [9] acpi 563 uW
105.2 us/s Process [PID 77269] [kworker/u16:2] 477 uW
98.9 us/s Process [PID 79200] [kworker/u16:0] 448 uW
84.5 us/s 5.1 kWork kfree_rcu_work 383 uW
75.8 us/s 0.02 kWork acpi_os_execute_deferred 343 uW
66.5 us/s 0.01 Interrupt [42] i915 301 uW
63.4 us/s 6.8 kWork kfree_rcu_monitor 287 uW
59.4 us/s 0.05 kWork acpi_ec_event_processor 269 uW
53.9 us/s Process [PID 79060] [kworker/2:2] 244 uW
53.0 us/s Process [PID 68440] [kworker/3:3] 240 uW
44.9 us/s 2.0 kWork gc_worker 204 uW
43.2 us/s 1.4 kWork psi_avgs_work 195 uW
25.3 us/s kWork vmstat_update 115 uW
25.2 us/s 0.01 Process [PID 79061] [kworker/1:0] 114 uW
22.1 us/s 0.16 kWork retire_work_handler 100 uW
20.8 us/s 0.03 Process [PID 35] [ksoftirqd/3] 0 mW
16.9 us/s 0.5 kWork iwl_mvm_tcm_work 0 mW
16.0 us/s 0.4 Interrupt [4] block(softirq) 0 mW
15.7 us/s 0.12 kWork __i915_gem_free_work 0 mW
14.6 us/s Timer clocksource_watchdog 0 mW
13.0 us/s 0.12 kWork vmstat_shepherd 0 mW
12.9 us/s 0.8 kWork rps_work 0 mW
12.9 us/s 0.20 Process [PID 79205] powertop --time=120 --html=twm.html 0 mW
12.0 us/s 0.27 Timer watchdog_timer_fn 0 mW
11.9 us/s 0.11 Process [PID 42027] /usr/lib/upowerd 0 mW
11.4 us/s Process [PID 79164] [kworker/0:0] 0 mW
9.8 us/s 0.02 kWork wb_workfn 0 mW
8.6 us/s 0.28 kWork pci_pme_list_scan 0 mW
8.6 us/s 0.01 Process [PID 28] [ksoftirqd/2] 0 mW
8.1 us/s 0.13 kWork engine_retire 0 mW
7.9 us/s Interrupt [41] ahci[0000:00:1f.2] 0 mW
5.3 us/s 0.12 kWork active_work 0 mW
5.2 us/s 0.27 Timer sched_rt_period_timer 0 mW
4.9 us/s kWork __intel_wakeref_put_work 0 mW
4.7 us/s 0.02 Interrupt [6] tasklet(softirq) 0 mW
4.2 us/s Timer blk_stat_timer_fn 0 mW
3.9 us/s 0.02 Process [PID 189] [jbd2/sda3-8] 0 mW
3.5 us/s 0.06 Process [PID 42030] /usr/lib/accounts-daemon 0 mW
2.4 us/s 0.02 Process [PID 9] [ksoftirqd/0] 0 mW
2.3 us/s 0.02 Process [PID 21] [ksoftirqd/1] 0 mW
2.2 us/s 0.15 kWork blk_mq_run_work_fn 0 mW
1.8 us/s Process [PID 1] /sbin/init nospec_store_bypass_disable no_stf_barrier nospec_store_bypass_disable no_stf_barrier 0 mW
1.6 us/s 0.05 kWork blk_mq_requeue_work 0 mW
1.3 us/s 0.01 Process [PID 549] /usr/bin/wpa_supplicant -u -s -O /run/wpa_supplicant 0 mW
1.2 us/s 0.02 Timer timerfd_tmrproc 0 mW
1.2 us/s 0.01 Process [PID 48706] jed src/lib/evas/canvas/evas_object_smart.c 0 mW
1.2 us/s Timer laptop_mode_timer_fn 0 mW
1.2 us/s 0.04 Process [PID 986] /usr/lib/rtkit-daemon 0 mW
1.1 us/s 0.02 kWork ext4_end_io_rsv_work 0 mW
1.0 us/s kWork power_supply_changed_work 0 mW
1.0 us/s Timer blk_rq_timed_out_timer 0 mW
0.9 us/s Process [PID 33] [migration/3] 0 mW
0.9 us/s 0.02 kWork free_work 0 mW
0.8 us/s 0.01 Interrupt [43] xhci_hcd 0 mW
0.8 us/s 0.01 Process [PID 78023] jed power-usage.txt 0 mW
0.8 us/s Timer writeout_period 0 mW
0.7 us/s Process [PID 184] [kworker/0:1H] 0 mW
0.7 us/s 0.02 kWork neigh_periodic_work 0 mW
0.7 us/s Process [PID 145] [kworker/3:1H] 0 mW
0.7 us/s 0.04 kWork ieee80211_iface_work 0 mW
0.6 us/s Process [PID 26] [migration/2] 0 mW
0.6 us/s Interrupt [45] snd_hda_intel:card0 0 mW
0.5 us/s Process [PID 987] /usr/lib/rtkit-daemon 0 mW
0.5 us/s Process [PID 19] [migration/1] 0 mW
0.5 us/s Timer commit_timeout 0 mW
0.4 us/s 0.01 kWork delayed_fput 0 mW
0.4 us/s Process [PID 13] [migration/0] 0 mW
0.4 us/s 0.03 kWork iwl_mvm_async_handlers_wk 0 mW
0.4 us/s 0.01 kWork intel_atomic_cleanup_work 0 mW
0.3 us/s kWork key_garbage_collector 0 mW
0.3 us/s Timer neigh_timer_handler 0 mW
0.3 us/s Timer tcp_write_timer 0 mW
0.3 us/s kWork __cfg80211_scan_done 0 mW
0.3 us/s Process [PID 188] [kworker/2:1H] 0 mW
0.2 us/s 0.01 kWork iwl_pcie_rx_allocator_work 0 mW
0.2 us/s 0.02 kWork blk_mq_timeout_work 0 mW
0.2 us/s Timer tcp_delack_timer 0 mW
0.2 us/s kWork wireless_nlevent_process 0 mW






Device Power Report

Usage Device Name PW Estimate
100.0% Audio codec hwC1D0: Realtek (pulseaudio ) 2.27 W
43.9 pkts/s Network interface: wlp1s0 (iwlwifi)
5.7% DRAM 545 mW
5.7% CPU core 352 mW
5.7% CPU misc 256 mW
100.0% Radio device: btusb 180 mW
0.1% Audio codec hwC0D0: Intel 1.46 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
1.4% USB device: usb-device-8087-07dc 0 mW
0.0% USB device: USB2.0-CRW (Generic) 0 mW
0.0% USB device: usb-device-0424-2512 0 mW
0.0% USB device: LG HD WebCam (Generic) 0 mW
0.0% USB device: xHCI Host Controller 0 mW
100.0% Radio device: iwlwifi
100.0% PCI Device: Intel Corporation 8 Series HD Audio Controller
100.0% runtime-HID-SENSOR-200073.3.auto
100.0% PCI Device: Intel Corporation 8 Series SATA Controller 1 [AHCI mode]
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% runtime-HID-SENSOR-200083.5.auto
100.0% PCI Device: Intel Corporation Haswell-ULT Thermal Subsystem
100.0% PCI Device: Intel Corporation Haswell-ULT Integrated Graphics Controller
100.0% PCI Device: Intel Corporation 8 Series USB xHCI HC
100.0% PCI Device: Intel Corporation Haswell-ULT DRAM Controller
0.1% PCI Device: Intel Corporation Haswell-ULT HD Audio Controller
0.0% runtime-INT33D3:00
0.0% USB device: EHCI Host Controller
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 8 Series SMBus Controller
0.0% USB device: usb-device-8087-8000
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-2): i915 gmbus panel
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% runtime-LGEX0815:00
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-4): i915 gmbus dpb
0.0% I2C Adapter (i2c-0): i915 gmbus ssc

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
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
pulseaudio /dev/snd/controlC0
/dev/snd/controlC1
/dev/snd/controlC1
/dev/snd/controlC1
/dev/snd/controlC1
/dev/snd/pcmC1D0c
/dev/snd/pcmC1D0p

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';