27 May
2003
27 May
'03
9:23 p.m.
Clemens,
Disreguard the previous message. I had a cable problem
and the system is now working.
Gotta run, session just walked in,
ron
--- Clemens Ladisch <clemens(a)ladisch.de> wrote:
R Parker wrote:
Well, what I said earlier isn't entirely correct,
accessing
/dev/snd/midiC1D0 will open the first free port.
Connecting ports will
open them, so the first free port in your case was
probably Port 8.
And when you connect port x to port 0, data from the
device at port x will
be written to port 0, but you won't be able to read
it from port 0 because
MIDI Out 1 and MIDI In 1 are different ports.
I think you really need virmidi to do what you want.
Please add the following lines (or modify them) in
your modules.conf:
options snd cards_limit=3
alias snd-card-2 snd-virmidi
alias snd-slot-2 snd-card-2
options snd-virmidi index=2
then connect the desired ports of the 8x8 to port
80:0, and then the
incoming data should be available at /dev/midi02.
No, dd doesn't use the ALSA library.
The ALSA library hides the device files behind
device names. Instead of
accessing the ALSA device files directly, you are
supposed to use some
program which uses the ALSA library.
There is an ugly test program which can display the
data from an ALSA
rawmidi port in the alsa-lib/test directory. Please
go there, run "make
rawmidi", and start it with
./rawmidi -v -i hw:1,x
HTH
Clemens
__________________________________
Do you Yahoo!?
The New Yahoo! Search - Faster. Easier. Bingo.
http://search.yahoo.com
--- Clemens Ladisch <clemens(a)ladisch.de>
wrote:
> R Parker wrote:
> > I still don't understand where the usb-midi
i/o
> device is.
> > ...
> > There's no messages passing through
> /dev/snd/midiC1D0
>
> This file handles all nine ports. The ALSA
library
> uses a magic IOCTL to
> select the desired port; when you access the
file
directly,
you get the
first port only.
After examining things a little closer, your reply
confirms my conclusion.
I think there's something wrong because no data is
making it to the /dev/snd/midiC1D0 file.
For demonstration, I've connected everything:
...
With this scenario anything that comes in port_N,8
should be seen in the file /dev/snd/midiC1D0. Am I
right? If
possible, you should use a program that can
access MIDI ports via the
ALSA library (the 8x8's ports would be named
"hw:1,x", x = 0..8).
I've always used dd to see check for incoming mmc
messages. It's always worked. Is this what you're
referring to?