On Mon, Dec 07, 2015 at 03:03:40PM -0600, Felipe Balbi wrote: > Josh Triplett <josh@xxxxxxxxxxxxxxxx> writes: > >> > Looking at the sysfs path for the input device as shown in dmesg, > >> > /sys/devices/pci0000\:00/0000\:00\:14.0/usb2/2-3/2-3.1/2-3.1.2/2-3.1.2\:1.1/supports_autosuspend > >> > did say "1". However, the device didn't actually appear to have > >> > autosuspend *enabled*. > >> > > >> > I'd appreciate any suggestions for how to debug this issue. > >> > >> what does 'control' on the power directory show ? > > I don't have a file "control" in the power directory when plugged in through > > the dock. The contents of all the files under power when plugged in via dock: > > huh ??? > > > ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.002D/power/control <== > > auto > > here's one enabling autosuspend > > > ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.002D/power/control <== > > auto > > and another, also enabling runtime pm. Change both of these from 'auto' > to 'on' and see if that helps. Copy/paste error; notice that both of those have the same path. The following files appear under the power directory when plugged in via the dock: ~$ head /sys/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1.2/2-3.1.2:1.1/power/* ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1.2/2-3.1.2:1.1/power/async <== enabled ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1.2/2-3.1.2:1.1/power/runtime_active_kids <== 0 ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1.2/2-3.1.2:1.1/power/runtime_enabled <== enabled ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1.2/2-3.1.2:1.1/power/runtime_status <== suspended ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1.2/2-3.1.2:1.1/power/runtime_usage <== 0 Notice that no file named "control" exists. By contrast, the following files appear under the power directory when plugged in directly: ~$ head /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.0032/power/* ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.0032/power/async <== disabled ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.0032/power/autosuspend_delay_ms <== head: error reading ‘/sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.0032/power/autosuspend_delay_ms’: Input/output error ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.0032/power/control <== auto ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.0032/power/runtime_active_kids <== 0 ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.0032/power/runtime_active_time <== 0 ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.0032/power/runtime_enabled <== disabled ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.0032/power/runtime_status <== unsupported ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.0032/power/runtime_suspended_time <== 0 ==> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.1/0003:17EF:6009.0032/power/runtime_usage <== 0 -- 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
