[LAU] Writing midi events via Alsa/Jack

[Bill Purvis]

Dear LAU friends!

A long time ago I acquire a Korg X5DR synth module. I then wrote a 
simple midi sequencer that
wrote stuff out to the module via the serial port (the X5DR has a 56Kb 
serial input in addition to
the conventional 32Kb Midi ports). This worked fine and I had lots of 
fun playing it.

Things moved on and my machines now no longer have serial ports, but a 
USB/Serial adaptor cable
got me over that one.

More recently again, things have on a lot, and after a certain amount of 
trial and error I managed to
adapt my sequencer to talk to to Yoshimi via Jack using the Alsa 
routines and QJackCtl to set up the
links. One odd thing I noticed was that QJackCtl shows my programs 
output port and the Yoshimi input ports
on the ALSA page, rather than the MIDI page. I now want to connect up 
the Calf Fluidsynth, but that
shows the input ports on the MIDI page.

Anyone with enough knowhow of programming the ALSA interfaces willing to 
sort out my problem?
My present code for setting up the port has:

       out_port = snd_seq_create_simple_port(seq, "MFE: output port",
SND_SEQ_PORT_CAP_READ|SND_SEQ_PORT_CAP_SUBS_READ,
                     SND_SEQ_PORT_TYPE_APPLICATION);

which sounds odd (READ?) but I gather the parameters actually specify 
the far end, rather than the
near end.

I'd like to be able to use this with Fluidsynth and Yoshimi it different 
times, but I guess I'd need
to have a command line option to vary the code to get the different 
class of outputs.

Any pointers to something that can explain the difference between the 
two categories would be most helpful

Many thanks

Bill

-- 
+----------------------------------------+
| Bill Purvis                            |
| email: bill at billp.org                  |
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