Oliver Neukum <oliver@xxxxxxxxxx> writes: > Am Montag, 16. Januar 2012, 15:26:53 schrieb Bjørn Mork: >> > Have you tried with autosuspend activated? >> >> Have to ask the stupid questions... How do I do that? Is this it?: >> >> nemi:/lib/modules/3.1.0-1-amd64/misc# grep . /sys/class/usb/cdc-wdm0/device/../power/* >> /sys/class/usb/cdc-wdm0/device/../power/active_duration:1408128 >> /sys/class/usb/cdc-wdm0/device/../power/async:enabled >> /sys/class/usb/cdc-wdm0/device/../power/autosuspend:1 >> /sys/class/usb/cdc-wdm0/device/../power/autosuspend_delay_ms:1000 >> /sys/class/usb/cdc-wdm0/device/../power/connected_duration:1425880 >> /sys/class/usb/cdc-wdm0/device/../power/control:auto >> /sys/class/usb/cdc-wdm0/device/../power/level:auto >> /sys/class/usb/cdc-wdm0/device/../power/persist:1 >> /sys/class/usb/cdc-wdm0/device/../power/runtime_active_kids:0 >> /sys/class/usb/cdc-wdm0/device/../power/runtime_active_time:1407328 >> /sys/class/usb/cdc-wdm0/device/../power/runtime_enabled:enabled >> /sys/class/usb/cdc-wdm0/device/../power/runtime_status:suspended >> /sys/class/usb/cdc-wdm0/device/../power/runtime_suspended_time:17672 >> /sys/class/usb/cdc-wdm0/device/../power/runtime_usage:0 >> /sys/class/usb/cdc-wdm0/device/../power/wakeup:disabled > > Yes, this is it. But it shows a very low amount of suspended time. DId you switch > it on after a delay? I did echo 1 >/sys/class/usb/cdc-wdm0/device/../power/autosuspend echo auto >/sys/class/usb/cdc-wdm0/device/../power/control only a few seconds before catching the above output. Now it looks like: nemi:/lib/modules/3.1.0-1-amd64/misc# grep . /sys/class/usb/cdc-wdm0/device/../power/* /sys/class/usb/cdc-wdm0/device/../power/active_duration:1415120 /sys/class/usb/cdc-wdm0/device/../power/async:enabled /sys/class/usb/cdc-wdm0/device/../power/autosuspend:1 /sys/class/usb/cdc-wdm0/device/../power/autosuspend_delay_ms:1000 /sys/class/usb/cdc-wdm0/device/../power/connected_duration:2480008 /sys/class/usb/cdc-wdm0/device/../power/control:auto /sys/class/usb/cdc-wdm0/device/../power/level:auto /sys/class/usb/cdc-wdm0/device/../power/persist:1 /sys/class/usb/cdc-wdm0/device/../power/runtime_active_kids:0 /sys/class/usb/cdc-wdm0/device/../power/runtime_active_time:1414640 /sys/class/usb/cdc-wdm0/device/../power/runtime_enabled:enabled /sys/class/usb/cdc-wdm0/device/../power/runtime_status:suspended /sys/class/usb/cdc-wdm0/device/../power/runtime_suspended_time:1064492 /sys/class/usb/cdc-wdm0/device/../power/runtime_usage:0 /sys/class/usb/cdc-wdm0/device/../power/wakeup:disabled Well, if that is it, then I can confirm that the /dev/cdc-wdmX devices still work with autosuspend. Bjørn -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
