hello,

I think the OSS midi system have been removed from ubuntu after 12.04.

about alsa, pd create devices. then they have to be connected using specific 
tools like aconnect or aconnectgui.
an iem external is also dedicated to this task.

according to aconnectgui, multiples devices out can be routed to a single midi 
input.

cheers
c

Le 24/08/2014 22:53, Miller Puckette a écrit :
I think the problem in Linux is that the "old fashioned" /dev/midi*
interface (traditionally but incorrectly callesd "OSS") doesn't give
applications any way to get the names of the MIDI devices.

The "ALSA" midi code (which I think was contributed long ago by Guenter
Geiger) doesn't seem to support any way of selecting devices - I believe it
just opens them all.

cheers
Miller

On Sun, Aug 24, 2014 at 10:07:30PM +0200, Ingo wrote:
Hi Miller,

the box that I'm building with pd uses 4 MIDI devices - 2 x MIDI, 2x MIDI
over USB. With the growing number of wireless MIDI over USB footswitches,
USB-MIDI CC pedales, etc. a number of 8 input devices sounds like a good
idea.

In the good old days (90's) I would have never made it with less than 16
MIDI in/outs ...

The problem that I'm fighting with (in Ubuntu) is still the order of the
devices. Modprobe.d looks like the only way for now. UDEV doesn't seem to be
reliable.

Here's a serious problem: when MIDI3 is not present MIDI4 is taking the
place of MIDI3 and all numberings shift down by 1 which makes reliable
numbering impossible.
(So when I heard that using the device names was possible I was pretty
excited - looks like it's not working, though.  :-(

What about a system of virtual MIDI ports that could assign device names to
fixed MIDI port numbers?

Ingo



-----Ursprüngliche Nachricht-----
Von: Pd-list [mailto:[email protected]] Im Auftrag von Miller
Puckette
Gesendet: Sonntag, 24. August 2014 20:56
An: Alexandre Torres Porres
Cc: Nicolas Montgermont; [email protected]
Betreff: Re: [PD] max midi in devices

Hmm - I had thought (in '98 or so) that MIDI was gradually disappearing
and the age of multiple MIDI devices was ending.  But now I guess with
all those USB "MIDI' devices coming around I need to imagine a future that
will never be MIDI free.

It would be easy for me to increase the number of possible deviced in the
MIDI dialog to some other arbitrary number... but I have no idea what
would
be a good one (7? 9?) - at some point it gets unmanageable (and makes the
window too big for anyone with a very small screen to work with).

So here's a question for Pd users everywhere - if you have more than 4
MIDI devices on your systems, how many do you actualy have?

cheers
Miller

On Sun, Aug 24, 2014 at 02:29:26AM -0300, Alexandre Torres Porres wrote:
but I don't have enough MIDI devices to test it out past 4 of
them. To get their names run

I have one that calls for 3 ports (Qnexus), and another for 2 (BCF) so
the
two alonw gac go over 4 :)



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