What to do?

Who would I contact (or what would I do ) to make Ubuntu, Jack or FFADO recognize my Presonus 24 - 4 - 2 as having 24 inputs NOT sixteen.

Other than that I’m now in a position to start using Ardour for some recording. I have a Sapphire 40 Firewire and a GNX 3000 USB which are recognised OK.

For ffado issues I would send a message to the ffado users emai list - see http://www.ffado.org/?q=contact