Hi Attila,
We are not finding that the switchover works. That is, with the system set to continue and hooked up to a 1A wall wart AND the USB the expectation is that the USB cable could be pulled and the diode would switch over to the wall wart. I think you are saying to have a powered USB hub and then when you disconnect that from the computer there would be no need for the wall wart anyway but power would stay exactly the same when the hub uplink to the PC was pulled.
It seems like perhaps there is an unacceptable dropout unless the wall wart has a higher voltage like 5.75V. I thought that setting continue would fix things, not having used that interface before, but it did not.
In spite of the complex explanation of the various modes the bottom line is that it won't switch fast enough to prevent a fatal dropout. You have to use a powered hub anyway.
Do you see a flaw in my argument?
thanks,
Steve