My understanding of how to access USB MIDI keyboards on Linux is to use one of these: * ALSA * JACK But pulseaudio sits on top of ALSA, and maybe the user does not have JACK installed. Does pulseaudio provide an API for accessing USB MIDI keyboards? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20150320/57d0997b/attachment.html>