On Thu, 28 Mar 2013, Lan Tianyu wrote: > > How long do you think the power should remain turned off? This code > > will leave it off for only a few milliseconds at most. That may not > > even be long enough for the voltage to drop all the way to 0. > > > > The delay probably should be at least 100 ms. Maybe more, I don't > > know. > I think this depends on the device. I don't find the answer on spec. > I find the cool down delay of over-current for port is 100ms > and one for hub is 500ms. Could we reference these delay? > 500ms would be safe. Okay, then use 500 ms. 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
