Huang Ying <ying.huang@xxxxxxxxx> writes: > On Wed, 2012-07-25 at 06:08 +0200, Bjørn Mork wrote: >> Enabling autosuspend for USB causes hotplug failure in the current >> linux-next. Newly plugged devices are not detected at all until the >> port/controller is manually powered on by writing "on" to power/control. >> Testing is pretty simple: >> >> 1) for f in /sys/bus/usb/devices/*/power/control; do echo auto > $f; done > > Have you done: > > for f in /sys/bus/pci/devices/*/power/confol; do echo auto > $f; done > > ? > > If not, the pci device will not be suspended at all. Yes, sorry for missing that. I had it automatically enabled. Yes, autosuspend for the PCI device and all child devices must be enabled for the device to be suspended at all, of course. >> 2) wait for the controllers to suspend >> 3) plugin a new USB device > > After plugin the new USB device, is there anything in dmesg? No. Absolutely nothing, so the USB devices is not enumerated. Another indication of the same: Plugging a device like an Android phone, which normally detects being connected to a host and presents a device type menu to the user, results in the charging LED lighting up but no menu. Trying to show the sequence of events: 1) the controllers are suspended: Jul 25 11:27:12 nemi kernel: [ 38.962792] uhci_hcd 0000:00:1a.2: power state changed by ACPI to D2 Jul 25 11:27:12 nemi kernel: [ 39.006718] uhci_hcd 0000:00:1d.0: power state changed by ACPI to D2 Jul 25 11:27:15 nemi kernel: [ 41.808471] uhci_hcd 0000:00:1a.0: power state changed by ACPI to D2 Jul 25 11:27:15 nemi kernel: [ 41.824123] ehci_hcd 0000:00:1a.7: power state changed by ACPI to D2 Jul 25 11:27:15 nemi kernel: [ 41.824194] ehci_hcd 0000:00:1d.7: power state changed by ACPI to D2 2) I connect a new USB device here 3) I read all power/files triggering this warning (as expected), included for timing info - this happens a while after connecting the USB device: Jul 25 11:28:34 nemi kernel: [ 121.440558] WARNING! power/level is deprecated; use power/control instead 4) I wake up the usb2 bus I connected the device to, and it is immediately found (no info about power state change here?): nemi:/home/bjorn# echo on > /sys/bus/usb/devices/usb2/power/control Jul 25 11:29:32 nemi kernel: [ 179.121418] ehci_hcd 0000:00:1d.7: setting latency timer to 64 Jul 25 11:29:32 nemi kernel: [ 179.364088] usb 2-1: new high-speed USB device number 3 using ehci_hcd Jul 25 11:29:33 nemi kernel: [ 179.500042] usb 2-1: New USB device found, idVendor=0fce, idProduct=2138 Jul 25 11:29:33 nemi kernel: [ 179.500055] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jul 25 11:29:33 nemi kernel: [ 179.500063] usb 2-1: Product: SEMC HSUSB Device Jul 25 11:29:33 nemi kernel: [ 179.500069] usb 2-1: Manufacturer: SEMC Jul 25 11:29:33 nemi kernel: [ 179.500075] usb 2-1: SerialNumber: 43423531314D42573144 Doing the same with commit 448bd857d reverted: 1) the controllers are suspended (to state D3? instead of D2?): Jul 25 11:34:01 nemi kernel: [ 37.064955] uhci_hcd 0000:00:1a.2: power state changed by ACPI to D3 Jul 25 11:34:01 nemi kernel: [ 37.106586] uhci_hcd 0000:00:1d.0: power state changed by ACPI to D3 Jul 25 11:34:04 nemi kernel: [ 39.808329] uhci_hcd 0000:00:1a.0: power state changed by ACPI to D3 Jul 25 11:34:04 nemi kernel: [ 39.840054] ehci_hcd 0000:00:1d.7: power state changed by ACPI to D3 Jul 25 11:34:04 nemi kernel: [ 39.840068] ehci_hcd 0000:00:1a.7: power state changed by ACPI to D3 2) plugging a USB device causes immediate wakeup (and logs changes state to D0): Jul 25 11:34:43 nemi kernel: [ 78.575357] ehci_hcd 0000:00:1d.7: power state changed by ACPI to D0 Jul 25 11:34:43 nemi kernel: [ 78.588162] ehci_hcd 0000:00:1d.7: power state changed by ACPI to D0 Jul 25 11:34:43 nemi kernel: [ 78.588292] ehci_hcd 0000:00:1d.7: setting latency timer to 64 Jul 25 11:34:43 nemi kernel: [ 78.832337] usb 2-1: new high-speed USB device number 3 using ehci_hcd Jul 25 11:34:43 nemi kernel: [ 78.968286] usb 2-1: New USB device found, idVendor=0fce, idProduct=2138 Jul 25 11:34:43 nemi kernel: [ 78.968300] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jul 25 11:34:43 nemi kernel: [ 78.968307] usb 2-1: Product: SEMC HSUSB Device Jul 25 11:34:43 nemi kernel: [ 78.968314] usb 2-1: Manufacturer: SEMC >> >> I've bisected the regression down to this commit: >> >> >> commit 448bd857d48e69b33ef323739dc6d8ca20d4cda7 >> Author: Huang Ying <ying.huang@xxxxxxxxx> >> Date: Sat Jun 23 10:23:51 2012 +0800 >> >> PCI/PM: add PCIe runtime D3cold support >> >> >> Looks like this somehow powers down my USB host controllers in such a >> way that they are unable to detect connections to their ports. The >> system is a pretty standard 4 year old intel based laptop. Full lspci >> listing is attached. >> >> Please let me know if you need further information. And please fix this >> before rc1. It effectively makes USB non-functional if autosuspend is >> enabled. > > Can you provide the output of the following command lines? > > grep . /sys/bus/pci/devices/*/power/* > grep . /sys/bus/usb/devices/*/power/* > lsusb > > After the controllers suspended. I've attached two copies of this output: - powerstate-withbug.txt, from a plain next-20120724 kernel - powerstate-reverted.txt, from a next-20120724 kernel with commit 448bd857d reverted I cannot really see any interesting differences in these. But the D3/D2 difference in the kernel log might be of interest? Bjørn
/sys/bus/usb/devices/1-0:1.0/power/async:enabled /sys/bus/usb/devices/1-0:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/1-0:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/1-0:1.0/power/runtime_status:suspended /sys/bus/usb/devices/1-0:1.0/power/runtime_usage:0 /sys/bus/usb/devices/1-6:1.0/power/async:enabled /sys/bus/usb/devices/1-6:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/1-6:1.0/power/runtime_enabled:disabled /sys/bus/usb/devices/1-6:1.0/power/runtime_status:unsupported /sys/bus/usb/devices/1-6:1.0/power/runtime_usage:0 /sys/bus/usb/devices/1-6:1.1/power/async:enabled /sys/bus/usb/devices/1-6:1.1/power/runtime_active_kids:0 /sys/bus/usb/devices/1-6:1.1/power/runtime_enabled:disabled /sys/bus/usb/devices/1-6:1.1/power/runtime_status:unsupported /sys/bus/usb/devices/1-6:1.1/power/runtime_usage:0 /sys/bus/usb/devices/1-6/power/active_duration:37124 /sys/bus/usb/devices/1-6/power/async:enabled /sys/bus/usb/devices/1-6/power/autosuspend:2 /sys/bus/usb/devices/1-6/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/1-6/power/connected_duration:119252 /sys/bus/usb/devices/1-6/power/control:auto /sys/bus/usb/devices/1-6/power/level:auto /sys/bus/usb/devices/1-6/power/persist:1 /sys/bus/usb/devices/1-6/power/runtime_active_kids:0 /sys/bus/usb/devices/1-6/power/runtime_active_time:36896 /sys/bus/usb/devices/1-6/power/runtime_enabled:enabled /sys/bus/usb/devices/1-6/power/runtime_status:suspended /sys/bus/usb/devices/1-6/power/runtime_suspended_time:82112 /sys/bus/usb/devices/1-6/power/runtime_usage:0 /sys/bus/usb/devices/2-0:1.0/power/async:enabled /sys/bus/usb/devices/2-0:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/2-0:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/2-0:1.0/power/runtime_status:suspended /sys/bus/usb/devices/2-0:1.0/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.0/power/async:enabled /sys/bus/usb/devices/2-4:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/2-4:1.0/power/runtime_status:suspended /sys/bus/usb/devices/2-4:1.0/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.19/power/async:enabled /sys/bus/usb/devices/2-4:1.19/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.19/power/runtime_enabled:enabled /sys/bus/usb/devices/2-4:1.19/power/runtime_status:suspended /sys/bus/usb/devices/2-4:1.19/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.20/power/async:enabled /sys/bus/usb/devices/2-4:1.20/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.20/power/runtime_enabled:disabled /sys/bus/usb/devices/2-4:1.20/power/runtime_status:unsupported /sys/bus/usb/devices/2-4:1.20/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.2/power/async:enabled /sys/bus/usb/devices/2-4:1.2/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.2/power/runtime_enabled:enabled /sys/bus/usb/devices/2-4:1.2/power/runtime_status:suspended /sys/bus/usb/devices/2-4:1.2/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.3/power/async:enabled /sys/bus/usb/devices/2-4:1.3/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.3/power/runtime_enabled:enabled /sys/bus/usb/devices/2-4:1.3/power/runtime_status:suspended /sys/bus/usb/devices/2-4:1.3/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.8/power/async:enabled /sys/bus/usb/devices/2-4:1.8/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.8/power/runtime_enabled:enabled /sys/bus/usb/devices/2-4:1.8/power/runtime_status:suspended /sys/bus/usb/devices/2-4:1.8/power/runtime_usage:0 /sys/bus/usb/devices/2-4/power/active_duration:36976 /sys/bus/usb/devices/2-4/power/async:enabled /sys/bus/usb/devices/2-4/power/autosuspend:2 /sys/bus/usb/devices/2-4/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/2-4/power/connected_duration:119000 /sys/bus/usb/devices/2-4/power/control:auto /sys/bus/usb/devices/2-4/power/level:auto /sys/bus/usb/devices/2-4/power/persist:1 /sys/bus/usb/devices/2-4/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4/power/runtime_active_time:36748 /sys/bus/usb/devices/2-4/power/runtime_enabled:enabled /sys/bus/usb/devices/2-4/power/runtime_status:suspended /sys/bus/usb/devices/2-4/power/runtime_suspended_time:82008 /sys/bus/usb/devices/2-4/power/runtime_usage:0 /sys/bus/usb/devices/2-4/power/wakeup:disabled /sys/bus/usb/devices/3-0:1.0/power/async:enabled /sys/bus/usb/devices/3-0:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/3-0:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/3-0:1.0/power/runtime_status:suspended /sys/bus/usb/devices/3-0:1.0/power/runtime_usage:0 /sys/bus/usb/devices/3-2:1.0/power/async:enabled /sys/bus/usb/devices/3-2:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/3-2:1.0/power/runtime_enabled:disabled /sys/bus/usb/devices/3-2:1.0/power/runtime_status:unsupported /sys/bus/usb/devices/3-2:1.0/power/runtime_usage:0 /sys/bus/usb/devices/3-2/power/active_duration:36736 /sys/bus/usb/devices/3-2/power/async:enabled /sys/bus/usb/devices/3-2/power/autosuspend:2 /sys/bus/usb/devices/3-2/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/3-2/power/connected_duration:118616 /sys/bus/usb/devices/3-2/power/control:auto /sys/bus/usb/devices/3-2/power/level:auto /sys/bus/usb/devices/3-2/power/persist:1 /sys/bus/usb/devices/3-2/power/runtime_active_kids:0 /sys/bus/usb/devices/3-2/power/runtime_active_time:36496 /sys/bus/usb/devices/3-2/power/runtime_enabled:enabled /sys/bus/usb/devices/3-2/power/runtime_status:suspended /sys/bus/usb/devices/3-2/power/runtime_suspended_time:81864 /sys/bus/usb/devices/3-2/power/runtime_usage:0 /sys/bus/usb/devices/3-2/power/wakeup:disabled /sys/bus/usb/devices/4-0:1.0/power/async:enabled /sys/bus/usb/devices/4-0:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/4-0:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/4-0:1.0/power/runtime_status:suspended /sys/bus/usb/devices/4-0:1.0/power/runtime_usage:0 /sys/bus/usb/devices/4-2:1.0/power/async:enabled /sys/bus/usb/devices/4-2:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/4-2:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/4-2:1.0/power/runtime_status:suspended /sys/bus/usb/devices/4-2:1.0/power/runtime_usage:0 /sys/bus/usb/devices/4-2:1.1/power/async:enabled /sys/bus/usb/devices/4-2:1.1/power/runtime_active_kids:0 /sys/bus/usb/devices/4-2:1.1/power/runtime_enabled:enabled /sys/bus/usb/devices/4-2:1.1/power/runtime_status:suspended /sys/bus/usb/devices/4-2:1.1/power/runtime_usage:0 /sys/bus/usb/devices/4-2:1.2/power/async:enabled /sys/bus/usb/devices/4-2:1.2/power/runtime_active_kids:0 /sys/bus/usb/devices/4-2:1.2/power/runtime_enabled:disabled /sys/bus/usb/devices/4-2:1.2/power/runtime_status:unsupported /sys/bus/usb/devices/4-2:1.2/power/runtime_usage:0 /sys/bus/usb/devices/4-2:1.3/power/async:enabled /sys/bus/usb/devices/4-2:1.3/power/runtime_active_kids:0 /sys/bus/usb/devices/4-2:1.3/power/runtime_enabled:disabled /sys/bus/usb/devices/4-2:1.3/power/runtime_status:unsupported /sys/bus/usb/devices/4-2:1.3/power/runtime_usage:0 /sys/bus/usb/devices/4-2/power/active_duration:26552 /sys/bus/usb/devices/4-2/power/async:enabled /sys/bus/usb/devices/4-2/power/autosuspend:2 /sys/bus/usb/devices/4-2/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/4-2/power/connected_duration:118200 /sys/bus/usb/devices/4-2/power/control:auto /sys/bus/usb/devices/4-2/power/level:auto /sys/bus/usb/devices/4-2/power/persist:1 /sys/bus/usb/devices/4-2/power/runtime_active_kids:0 /sys/bus/usb/devices/4-2/power/runtime_active_time:26376 /sys/bus/usb/devices/4-2/power/runtime_enabled:enabled /sys/bus/usb/devices/4-2/power/runtime_status:suspended /sys/bus/usb/devices/4-2/power/runtime_suspended_time:91568 /sys/bus/usb/devices/4-2/power/runtime_usage:0 /sys/bus/usb/devices/4-2/power/wakeup:disabled /sys/bus/usb/devices/5-0:1.0/power/async:enabled /sys/bus/usb/devices/5-0:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/5-0:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/5-0:1.0/power/runtime_status:suspended /sys/bus/usb/devices/5-0:1.0/power/runtime_usage:0 /sys/bus/usb/devices/6-0:1.0/power/async:enabled /sys/bus/usb/devices/6-0:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/6-0:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/6-0:1.0/power/runtime_status:suspended /sys/bus/usb/devices/6-0:1.0/power/runtime_usage:0 /sys/bus/usb/devices/7-0:1.0/power/async:enabled /sys/bus/usb/devices/7-0:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/7-0:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/7-0:1.0/power/runtime_status:suspended /sys/bus/usb/devices/7-0:1.0/power/runtime_usage:0 /sys/bus/usb/devices/8-0:1.0/power/async:enabled /sys/bus/usb/devices/8-0:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/8-0:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/8-0:1.0/power/runtime_status:suspended /sys/bus/usb/devices/8-0:1.0/power/runtime_usage:0 /sys/bus/usb/devices/usb1/power/active_duration:40060 /sys/bus/usb/devices/usb1/power/async:enabled /sys/bus/usb/devices/usb1/power/autosuspend:2 /sys/bus/usb/devices/usb1/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/usb1/power/connected_duration:119692 /sys/bus/usb/devices/usb1/power/control:auto /sys/bus/usb/devices/usb1/power/level:auto /sys/bus/usb/devices/usb1/power/runtime_active_kids:0 /sys/bus/usb/devices/usb1/power/runtime_active_time:40044 /sys/bus/usb/devices/usb1/power/runtime_enabled:enabled /sys/bus/usb/devices/usb1/power/runtime_status:suspended /sys/bus/usb/devices/usb1/power/runtime_suspended_time:79632 /sys/bus/usb/devices/usb1/power/runtime_usage:0 /sys/bus/usb/devices/usb1/power/wakeup:disabled /sys/bus/usb/devices/usb2/power/active_duration:40044 /sys/bus/usb/devices/usb2/power/async:enabled /sys/bus/usb/devices/usb2/power/autosuspend:2 /sys/bus/usb/devices/usb2/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/usb2/power/connected_duration:119680 /sys/bus/usb/devices/usb2/power/control:auto /sys/bus/usb/devices/usb2/power/level:auto /sys/bus/usb/devices/usb2/power/runtime_active_kids:0 /sys/bus/usb/devices/usb2/power/runtime_active_time:40028 /sys/bus/usb/devices/usb2/power/runtime_enabled:enabled /sys/bus/usb/devices/usb2/power/runtime_status:suspended /sys/bus/usb/devices/usb2/power/runtime_suspended_time:79636 /sys/bus/usb/devices/usb2/power/runtime_usage:0 /sys/bus/usb/devices/usb2/power/wakeup:disabled /sys/bus/usb/devices/usb3/power/active_duration:40024 /sys/bus/usb/devices/usb3/power/async:enabled /sys/bus/usb/devices/usb3/power/autosuspend:2 /sys/bus/usb/devices/usb3/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/usb3/power/connected_duration:119660 /sys/bus/usb/devices/usb3/power/control:auto /sys/bus/usb/devices/usb3/power/level:auto /sys/bus/usb/devices/usb3/power/runtime_active_kids:0 /sys/bus/usb/devices/usb3/power/runtime_active_time:40024 /sys/bus/usb/devices/usb3/power/runtime_enabled:enabled /sys/bus/usb/devices/usb3/power/runtime_status:suspended /sys/bus/usb/devices/usb3/power/runtime_suspended_time:79636 /sys/bus/usb/devices/usb3/power/runtime_usage:0 /sys/bus/usb/devices/usb3/power/wakeup:disabled /sys/bus/usb/devices/usb4/power/active_duration:31056 /sys/bus/usb/devices/usb4/power/async:enabled /sys/bus/usb/devices/usb4/power/autosuspend:2 /sys/bus/usb/devices/usb4/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/usb4/power/connected_duration:119656 /sys/bus/usb/devices/usb4/power/control:auto /sys/bus/usb/devices/usb4/power/level:auto /sys/bus/usb/devices/usb4/power/runtime_active_kids:0 /sys/bus/usb/devices/usb4/power/runtime_active_time:31056 /sys/bus/usb/devices/usb4/power/runtime_enabled:enabled /sys/bus/usb/devices/usb4/power/runtime_status:suspended /sys/bus/usb/devices/usb4/power/runtime_suspended_time:88600 /sys/bus/usb/devices/usb4/power/runtime_usage:0 /sys/bus/usb/devices/usb4/power/wakeup:disabled /sys/bus/usb/devices/usb5/power/active_duration:4020 /sys/bus/usb/devices/usb5/power/async:enabled /sys/bus/usb/devices/usb5/power/autosuspend:2 /sys/bus/usb/devices/usb5/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/usb5/power/connected_duration:119656 /sys/bus/usb/devices/usb5/power/control:auto /sys/bus/usb/devices/usb5/power/level:auto /sys/bus/usb/devices/usb5/power/runtime_active_kids:0 /sys/bus/usb/devices/usb5/power/runtime_active_time:4020 /sys/bus/usb/devices/usb5/power/runtime_enabled:enabled /sys/bus/usb/devices/usb5/power/runtime_status:suspended /sys/bus/usb/devices/usb5/power/runtime_suspended_time:115636 /sys/bus/usb/devices/usb5/power/runtime_usage:0 /sys/bus/usb/devices/usb5/power/wakeup:disabled /sys/bus/usb/devices/usb6/power/active_duration:2104 /sys/bus/usb/devices/usb6/power/async:enabled /sys/bus/usb/devices/usb6/power/autosuspend:2 /sys/bus/usb/devices/usb6/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/usb6/power/connected_duration:119652 /sys/bus/usb/devices/usb6/power/control:auto 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/sys/bus/pci/devices/0000:03:00.0/power/runtime_active_time:104580 /sys/bus/pci/devices/0000:03:00.0/power/runtime_enabled:enabled /sys/bus/pci/devices/0000:03:00.0/power/runtime_status:active /sys/bus/pci/devices/0000:03:00.0/power/runtime_suspended_time:0 /sys/bus/pci/devices/0000:03:00.0/power/runtime_usage:1 /sys/bus/pci/devices/0000:03:00.0/power/wakeup:disabled Bus 001 Device 004: ID 17ef:4807 Lenovo UVC Camera Bus 002 Device 002: ID 1199:68a2 Sierra Wireless, Inc. Bus 003 Device 002: ID 08ff:2810 AuthenTec, Inc. AES2810 Bus 004 Device 002: ID 0a5c:2145 Broadcom Corp. Bluetooth with Enhanced Data Rate II Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
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/sys/bus/usb/devices/1-6/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/1-6/power/connected_duration:70960 /sys/bus/usb/devices/1-6/power/control:auto /sys/bus/usb/devices/1-6/power/level:auto /sys/bus/usb/devices/1-6/power/persist:1 /sys/bus/usb/devices/1-6/power/runtime_active_kids:0 /sys/bus/usb/devices/1-6/power/runtime_active_time:34976 /sys/bus/usb/devices/1-6/power/runtime_enabled:enabled /sys/bus/usb/devices/1-6/power/runtime_status:suspended /sys/bus/usb/devices/1-6/power/runtime_suspended_time:35740 /sys/bus/usb/devices/1-6/power/runtime_usage:0 /sys/bus/usb/devices/2-0:1.0/power/async:enabled /sys/bus/usb/devices/2-0:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/2-0:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/2-0:1.0/power/runtime_status:suspended /sys/bus/usb/devices/2-0:1.0/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.0/power/async:enabled /sys/bus/usb/devices/2-4:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/2-4:1.0/power/runtime_status:suspended /sys/bus/usb/devices/2-4:1.0/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.19/power/async:enabled /sys/bus/usb/devices/2-4:1.19/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.19/power/runtime_enabled:enabled /sys/bus/usb/devices/2-4:1.19/power/runtime_status:suspended /sys/bus/usb/devices/2-4:1.19/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.20/power/async:enabled /sys/bus/usb/devices/2-4:1.20/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.20/power/runtime_enabled:disabled /sys/bus/usb/devices/2-4:1.20/power/runtime_status:unsupported /sys/bus/usb/devices/2-4:1.20/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.2/power/async:enabled /sys/bus/usb/devices/2-4:1.2/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.2/power/runtime_enabled:enabled /sys/bus/usb/devices/2-4:1.2/power/runtime_status:suspended /sys/bus/usb/devices/2-4:1.2/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.3/power/async:enabled /sys/bus/usb/devices/2-4:1.3/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.3/power/runtime_enabled:enabled /sys/bus/usb/devices/2-4:1.3/power/runtime_status:suspended /sys/bus/usb/devices/2-4:1.3/power/runtime_usage:0 /sys/bus/usb/devices/2-4:1.8/power/async:enabled /sys/bus/usb/devices/2-4:1.8/power/runtime_active_kids:0 /sys/bus/usb/devices/2-4:1.8/power/runtime_enabled:enabled /sys/bus/usb/devices/2-4:1.8/power/runtime_status:suspended /sys/bus/usb/devices/2-4:1.8/power/runtime_usage:0 /sys/bus/usb/devices/2-4/power/active_duration:35056 /sys/bus/usb/devices/2-4/power/async:enabled /sys/bus/usb/devices/2-4/power/autosuspend:2 /sys/bus/usb/devices/2-4/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/2-4/power/connected_duration:70708 /sys/bus/usb/devices/2-4/power/control:auto /sys/bus/usb/devices/2-4/power/level:auto /sys/bus/usb/devices/2-4/power/persist:1 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/sys/bus/usb/devices/3-2/power/async:enabled /sys/bus/usb/devices/3-2/power/autosuspend:2 /sys/bus/usb/devices/3-2/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/3-2/power/connected_duration:70324 /sys/bus/usb/devices/3-2/power/control:auto /sys/bus/usb/devices/3-2/power/level:auto /sys/bus/usb/devices/3-2/power/persist:1 /sys/bus/usb/devices/3-2/power/runtime_active_kids:0 /sys/bus/usb/devices/3-2/power/runtime_active_time:34580 /sys/bus/usb/devices/3-2/power/runtime_enabled:enabled /sys/bus/usb/devices/3-2/power/runtime_status:suspended /sys/bus/usb/devices/3-2/power/runtime_suspended_time:35488 /sys/bus/usb/devices/3-2/power/runtime_usage:0 /sys/bus/usb/devices/3-2/power/wakeup:disabled /sys/bus/usb/devices/4-0:1.0/power/async:enabled /sys/bus/usb/devices/4-0:1.0/power/runtime_active_kids:0 /sys/bus/usb/devices/4-0:1.0/power/runtime_enabled:enabled /sys/bus/usb/devices/4-0:1.0/power/runtime_status:suspended /sys/bus/usb/devices/4-0:1.0/power/runtime_usage:0 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/sys/bus/usb/devices/4-2:1.3/power/runtime_status:unsupported /sys/bus/usb/devices/4-2:1.3/power/runtime_usage:0 /sys/bus/usb/devices/4-2/power/active_duration:25788 /sys/bus/usb/devices/4-2/power/async:enabled /sys/bus/usb/devices/4-2/power/autosuspend:2 /sys/bus/usb/devices/4-2/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/4-2/power/connected_duration:69908 /sys/bus/usb/devices/4-2/power/control:auto /sys/bus/usb/devices/4-2/power/level:auto /sys/bus/usb/devices/4-2/power/persist:1 /sys/bus/usb/devices/4-2/power/runtime_active_kids:0 /sys/bus/usb/devices/4-2/power/runtime_active_time:25612 /sys/bus/usb/devices/4-2/power/runtime_enabled:enabled /sys/bus/usb/devices/4-2/power/runtime_status:suspended /sys/bus/usb/devices/4-2/power/runtime_suspended_time:44040 /sys/bus/usb/devices/4-2/power/runtime_usage:0 /sys/bus/usb/devices/4-2/power/wakeup:disabled /sys/bus/usb/devices/5-0:1.0/power/async:enabled /sys/bus/usb/devices/5-0:1.0/power/runtime_active_kids:0 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/sys/bus/usb/devices/usb1/power/active_duration:38188 /sys/bus/usb/devices/usb1/power/async:enabled /sys/bus/usb/devices/usb1/power/autosuspend:2 /sys/bus/usb/devices/usb1/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/usb1/power/connected_duration:71404 /sys/bus/usb/devices/usb1/power/control:auto /sys/bus/usb/devices/usb1/power/level:auto /sys/bus/usb/devices/usb1/power/runtime_active_kids:0 /sys/bus/usb/devices/usb1/power/runtime_active_time:38168 /sys/bus/usb/devices/usb1/power/runtime_enabled:enabled /sys/bus/usb/devices/usb1/power/runtime_status:suspended /sys/bus/usb/devices/usb1/power/runtime_suspended_time:33216 /sys/bus/usb/devices/usb1/power/runtime_usage:0 /sys/bus/usb/devices/usb1/power/wakeup:disabled /sys/bus/usb/devices/usb2/power/active_duration:38168 /sys/bus/usb/devices/usb2/power/async:enabled /sys/bus/usb/devices/usb2/power/autosuspend:2 /sys/bus/usb/devices/usb2/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/usb2/power/connected_duration:71384 /sys/bus/usb/devices/usb2/power/control:auto /sys/bus/usb/devices/usb2/power/level:auto /sys/bus/usb/devices/usb2/power/runtime_active_kids:0 /sys/bus/usb/devices/usb2/power/runtime_active_time:38152 /sys/bus/usb/devices/usb2/power/runtime_enabled:enabled /sys/bus/usb/devices/usb2/power/runtime_status:suspended /sys/bus/usb/devices/usb2/power/runtime_suspended_time:33216 /sys/bus/usb/devices/usb2/power/runtime_usage:0 /sys/bus/usb/devices/usb2/power/wakeup:disabled /sys/bus/usb/devices/usb3/power/active_duration:38152 /sys/bus/usb/devices/usb3/power/async:enabled /sys/bus/usb/devices/usb3/power/autosuspend:2 /sys/bus/usb/devices/usb3/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/usb3/power/connected_duration:71372 /sys/bus/usb/devices/usb3/power/control:auto /sys/bus/usb/devices/usb3/power/level:auto /sys/bus/usb/devices/usb3/power/runtime_active_kids:0 /sys/bus/usb/devices/usb3/power/runtime_active_time:38152 /sys/bus/usb/devices/usb3/power/runtime_enabled:enabled /sys/bus/usb/devices/usb3/power/runtime_status:suspended /sys/bus/usb/devices/usb3/power/runtime_suspended_time:33220 /sys/bus/usb/devices/usb3/power/runtime_usage:0 /sys/bus/usb/devices/usb3/power/wakeup:disabled /sys/bus/usb/devices/usb4/power/active_duration:30168 /sys/bus/usb/devices/usb4/power/async:enabled /sys/bus/usb/devices/usb4/power/autosuspend:2 /sys/bus/usb/devices/usb4/power/autosuspend_delay_ms:2000 /sys/bus/usb/devices/usb4/power/connected_duration:71372 /sys/bus/usb/devices/usb4/power/control:auto /sys/bus/usb/devices/usb4/power/level:auto /sys/bus/usb/devices/usb4/power/runtime_active_kids:0 /sys/bus/usb/devices/usb4/power/runtime_active_time:30168 /sys/bus/usb/devices/usb4/power/runtime_enabled:enabled /sys/bus/usb/devices/usb4/power/runtime_status:suspended /sys/bus/usb/devices/usb4/power/runtime_suspended_time:41204 /sys/bus/usb/devices/usb4/power/runtime_usage:0 /sys/bus/usb/devices/usb4/power/wakeup:disabled /sys/bus/usb/devices/usb5/power/active_duration:4156 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/sys/bus/pci/devices/0000:03:00.0/power/runtime_active_time:56836 /sys/bus/pci/devices/0000:03:00.0/power/runtime_enabled:enabled /sys/bus/pci/devices/0000:03:00.0/power/runtime_status:active /sys/bus/pci/devices/0000:03:00.0/power/runtime_suspended_time:0 /sys/bus/pci/devices/0000:03:00.0/power/runtime_usage:1 /sys/bus/pci/devices/0000:03:00.0/power/wakeup:disabled Bus 001 Device 004: ID 17ef:4807 Lenovo UVC Camera Bus 002 Device 002: ID 1199:68a2 Sierra Wireless, Inc. Bus 003 Device 002: ID 08ff:2810 AuthenTec, Inc. AES2810 Bus 004 Device 002: ID 0a5c:2145 Broadcom Corp. Bluetooth with Enhanced Data Rate II Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 004: ID 17ef:4807 Lenovo UVC Camera Bus 002 Device 003: ID 0fce:2138 Sony Ericsson Mobile Communications AB Xperia X10 mini pro (Debug) Bus 002 Device 002: ID 1199:68a2 Sierra Wireless, Inc. Bus 003 Device 002: ID 08ff:2810 AuthenTec, Inc. AES2810 Bus 004 Device 002: ID 0a5c:2145 Broadcom Corp. Bluetooth with Enhanced Data Rate II Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
