On Mon, 23 Jul 2012, Bjørn Mork wrote: > Hello, > > I have no idea where to start debugging this. But USB hotplug does not > seem to work at all in linux-next if autosuspend is enabled. > > I am running next-20120723 with this: > > nemi:/tmp# grep . /sys/bus/usb/devices/usb*/power/control > /sys/bus/usb/devices/usb1/power/control:auto > /sys/bus/usb/devices/usb2/power/control:auto > /sys/bus/usb/devices/usb3/power/control:auto > /sys/bus/usb/devices/usb4/power/control:auto > /sys/bus/usb/devices/usb5/power/control:auto > /sys/bus/usb/devices/usb6/power/control:auto > /sys/bus/usb/devices/usb7/power/control:auto > /sys/bus/usb/devices/usb8/power/control:auto > > > Connecting a device to any port, whether it is external or internal > (using rfkill to "connect") has no effect. Nothing in the log. No > uevent. > > Setting control to "on" on a port will reenable hotplug on that port. > Any device connected while in "auto" state will suddenly be discovered. This sounds like a bug in the host controller driver. What HCDs are you using? Does the host controller also get suspended? Alan Stern -- 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
