On Tue, Oct 12, 2010 at 7:09 PM, Maulik Mankad <mankad.maulik@xxxxxxxxx> wrote: > Seems like the below commit added that support to sysfs. > > commit 8d4b9d1bfef117862a2889dec4dac227068544c9 > Author: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx> > Date: Mon Jul 19 02:01:06 2010 +0200 > > PM / Runtime: Add runtime PM statistics (v3) > > I will see if I can apply this to my kernel and provide the stats you need. > I applied the relevant patches to 2.6.35 related to runtime PM and collected the below statistics. cat /sys/bus/usb/devices/1-1/power/active_duration 120609 cat /sys/bus/usb/devices/1-1/power/autosuspend 0 cat /sys/bus/usb/devices/1-1/power/connected_duration 220398 cat /sys/bus/usb/devices/1-1/power/control auto cat /sys/bus/usb/devices/1-1/power/level auto cat /sys/bus/usb/devices/1-1/power/persist 1 cat /sys/bus/usb/devices/1-1/power/runtime_active_time 120523 cat /sys/bus/usb/devices/1-1/power/runtime_status suspended cat /sys/bus/usb/devices/1-1/power/runtime_suspended_time 159773 cat /sys/bus/usb/devices/1-1/power/wakeup enabled cat /sys/bus/usb/devices/1-1/power/wakeup_count 0 I am not familiar with the runtime pm statistics and can't interpret the above values. Let me know if this information is helpful and if you need anything else. Regards, Maulik -- 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
