On Tue, 11 Dec 2012, Timur wrote: > I am talking about both devices loosing external power at the same time. Losing external power is different from losing power. > The N7 will then switch to it's internal battery. Right. It will continue running, because the battery continues to supply power. There is no interruption in the power flow. > I guess anything could cause a loss of power. Turning off the car > ignition, for example. What happens if the N7 doesn't lose its external power but the slave does? If there's still a problem, that's a pretty good indication that the N7 is working okay but the slave isn't. > Good hint. I found a reference to linux-tegra and will contact them. > > Allow me to say that I got a little scared when you told me to "try > unplugging the slave" as a solution. Maybe you weren't all serious with > a list newbie? I was perfectly serious. It's a legitimate debugging technique. Unplug the USB cable, then plug it back in, then see what happens. 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
