Well, there's a way - we fix gnome-volume-control / PulseAudio to work with your device
Please file a bug at http://bugzilla.redhat.com
on the pulseaudio component (Fedora version 'rawhide'), explaining the problem, and including the output of the 'alsa-info.sh --no-upload' script.
When it works right, you should get a drop-down menu on the Input tab of gnome-volume-control, labelled 'Connector', which lets you pick the appropriate input. If you don't have that menu, or it doesn't list the input you want to use, that's a bug that should be filed as I describe above.