On Friday 18 January 2013 14:09:26 Alan Stern wrote: > The autosuspend delay at the USB level probably should be set to 0; > then the autosuspend delay at the SCSI disk level will control the > actual power changes. What about things like lsusb? Should we better not go down quite to zero? > Note that drives with removable media are polled automatically by the > kernel at intervals of 2 seconds by default. If the autosuspend delay > is longer than that, it will never have a chance to take effect. Unfortunately most storage devices in the usual dongle shape, even if they do not have a removable medium claim to have a removable medium. Actually I consider this a bug in the spec. It should specify a method for the device to tell the driver whether medium removal or insertation will trigger remote wakeup. Regards Oliver -- 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