Re: Rawmidi bug or missed feature?

[Peter Enderborg <pme@ufh.se>]

Paul Davis wrote:

> >I don't know how to be more specific. I have a program that listen to
> >a raw midi stream generated by alsa. But I try.
>
> You have a program that uses the sequencer to read MIDI data. That's
> totally different from a program that uses the raw MIDI interface to
> read MIDI data. This is very, very important.
>
> >I have a midisport 8x8. It have a serial port. I have a computer
> >linux. Alsa don't have driver for the unit. So I have writen a daemon
> >that open the snd-card-virmidi with snd_rawmidi_open().
>
> This makes no sense at all to me. snd_rawmidi_open() is a way to
> get access to an ALSA low level, raw MIDI driver. For example, my
> trident card has a MIDI port on it, and the trident driver contains
> code to deliver and receive data from the port. If I want to
> read/write that data stream, I would use snd_rawmidi_open().
>

Yes, and my device is a midisport.

>
> But snd_rawmidi_open() has nothing to do with the sequencer, or with
> virmidi. virmidi exists to make sequencer ports available via the raw
> MIDI API so that programs which don't know about the sequencer can
> still read and write data to it.
>

I do. I is a connection. I gets a client ID. So it have very mush to do
with the
sequencser.

>
> If there is no ALSA driver for the unit (or for serial MIDI - I am not
> sure if we have such a thing, do we?), then why would you be calling
> snd_rawmidi_open()?
>

There is a serial driver. But it dont handle the same protocol as
midisport.
So how should I connect my device so I can use the midisport to talk to
my synths?
Rawmid on a snd-card-virmidi gives one way. Show me a better way instead
of say that
im wrong.

>
> >                                                        I have also
> >writen a processor that handels event on a sequencer level to
> >interface my Roland MCR-8 with varius applications, synths.
>
> Why are you using the sequencer for this?

It is the api for midi programming. I don't have to think about active
sensing, streaming or
anything on the low level. And I get tools for routing the data as I
like. I thougth that you should
know the concept. Almost everything is in realtime. But some mappings i
done in the time domain
as well. For example the dialer.

>
>
> --p

--
foo!




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