On Fri, Feb 22, 2013 at 05:51:10PM +0800, Lan Tianyu wrote:At last, this mean usb port power off mechanism should not work.
> > > Nothing major, lots of gadget fixes, and of course, xhci stuff.
> > I get no USB devices recognised when I insert them any more, which
> > I think is pretty major. I suspect it has something to do with this ?
> > > Lan Tianyu (12):
> > > usb: add runtime pm support for usb port device
> > > usb: add usb port auto power off mechanism
> > It looks like every port on my laptop is powered down, as I can't
> > even charge devices with it.
> Do you enable the port/power/pm_qos_no_power_off?
> cat /sys/bus/usb/devices/(dev)/port/power/pm_qos_no_power_off to show.
I changed them to 0, made no difference.How about"sudo lsusb -s 1:1 -v" or "2:1"?
> > What can I do to debug this ?
> Can you attach the output of dmesg with CONFIG_USB_DEBUG?