[PD] pd linux doesn't like sharing midi devices
Maurizio Umberto Puxeddu
mauriziopuxeddu at yahoo.it
Sun Apr 20 18:54:07 CEST 2003
With the ALSA sequecer API Antonis wouldn't need to use any MIDI device
(physical or virtual). PD could just open one or more sequencer ports
and people would connect them with other applications' ports or physical
Here there are some example by Mattias Nagorni:
Maurizio Umberto Puxeddu.
On Sun, 2003-04-20 at 18:44, Miller Puckette wrote:
> Yes, Pd is using OSS MIDI (/dev/midi, /dev/midi1, etc.) I'm unaware there's
> any way to get two applications to share a MIDI device (perhaps ALSA can do
> On Sun, Apr 20, 2003 at 04:40:41PM +0000, Antonis Galanopoulos wrote:
> > hi all
> > I have that problem with pd. What I want to do is control ardour from pd using
> > midi MMC. I have set up a working virtual midi card in my system for that
> > reason. If I start pd first it will open the midi devices it is supposed to
> > open (i.e mididev 1,2,3). I start ardour afterwards but no luck, it cannot
> > open the midi device it is supposed to receive midi because *I think* (and I
> > might be wrong) pd opened it first. Same thing happens if I start ardour
> > first,it will open the midi dev but pd wont be able to open the device ardour
> > is using.
> > I also had a similar problem with another application called seq24, a few
> > weeks ago.
> > Does anybody knows what is going on?
> > Is pd using oss for midi I/O?
> > Any ideas welcome
> > --
> > regards
> > anton
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