I am using this hub too, and it works pretty good.
I am using my raspberry as a squeezebox player using squeezelite, connected to the server through a (logilink) wifi dongle.
Here is the USB hub in my Radio Cassette Player housing..
I have the USB port of the Pi connected to the mini-usb port of the hub (which is port 1).
Then I have USB powered speakers connected to the "High power" port, which is port 2.
The port next to it, port 3, is connected to the micro usb power input port of the Pi.
In port 4 is the WiFi dongle and port 5 is for the USB soundcard.
I came to this setup because if I connect the Pi "power" line to another port, say 4 or 5, I get soft popping or crackling noises on the sound output.
Apparently the power line causes distortion to the usb sound card.
With this setup the popping noises are almost completely gone.
As mentioned in the previous post, you cannot connect the Pi power line to the "high power" port. This is because that port is switched on or off according to the input the hub gets from port 1 ( I think).
Now when I switch the Pi off (sudo shutdonw -h now) , the Pi powers off, and I see the led of the PC speakers switch off, and, then switch on again... I think the hub switches to "recharge" mode once the Pi is switched off.
That's nice if you want to charge something, but not very handy for my PC speakers.
Also, when I start the Pi (plug in the power adapter of the hub) I see the speakers switch on, switch off, and switch on again... I don't now why it's doing that.
All is working fine right now, but I want to see if I can make this shutdown and startup sequence a bit less messy.
My idea is to cut the micro USB power lead for the pi and connect it directly to the power cable of the HUB power adapter. This will free up a USB port, and cannot cause any interference with the USB ports anymore.
The power to the Pi might be more stable, and I can then plug the PC speakers into a "normal" port of the hub.
What do you guys think, good idea, or not?