As long as we are stuck with Trident, you'll never see a USB audio card work with MorphOS, Aros, Amithlon, Amiga OS, etc.
WTF has the settings app for Poseidon do to with wether such devices work or won't
Poseidon itself can do those isochronous transfers needed, but AFAIK it's currently only supported in the Deneb's driver.
