http://bugs.winehq.org/show_bug.cgi?id=28415
Summary: MIDI Broken (in, at least, the program VSTHost) Product: Wine Version: 1.3.28 Platform: x86 OS/Version: Mac OS X Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown AssignedTo: wine-bugs@winehq.org ReportedBy: dbmmbr@gmail.com
In Wine 1.3.28, in Mac OS X, the program VSTHost does not recognize any MIDI ports as existing.
In previous versions of Wine that I've used, up until, and including, Wine 1.3.27, VSTHost did recognize all of the available OS X MIDI ports.