@Rxich, @AndyBurns, and anyone else who had troubles with physical switches (switch controls more than 1 output)...
I decided to revisit this device, because it's a perfect fit for my purposes, and noticed the same behavior you guys experienced. Looked into it, and... well, it's completely my fault. 
I fixed the driver, sorry for the inconvenience.
Hopefully @markus will support this device in his awesome new driver set, and no one will be dependent on my poorly maintained drivers... 
