Istvan,

Thanks for your quick reply. I did try PortMidi, and had similar problems. 
I'll try again.

However, if it's not hard, I'm sure not only I but others would benefit from 
and rejoice at having arbitrary /dev reading of MIDI streams back in the 
code, instead of a forced standard like ALSA or PortMIDI. After all, the 
Linux philosophy is about freedom of choice, right? ;)

One other major issue I noticed was that "-+rtaudio=alsa" seems broken, in 
that if I open my score with a dummy ftable for say 1000 seconds like so:

 f0 1000
 e

...then run it, my performance time is only a few seconds. Has anyone else 
noticed this? It worked as expected with the old Csound-4.23f12-GNU version 
available on Csounds.com.

FYI, I use a Slackware 10.1 system on a Dell Inspiron 8200 Laptop.

For now, I'm sticking with Csound4, but i'll happily help test Csound5 until 
it's workable for me.

Best,
Aaron.

On Tuesday 18 April 2006 3:12 am, Istvan Varga wrote:
> On Tuesday 18 April 2006 07:10, Aaron Krister Johnson wrote:
> > I'd like to use my serial port (/dev/ttyS0) for send MIDI data to Csound,
> > which worked fine in Csound4 (simple--- "-M/dev/ttyS0" and you're good to
> > go)
>
> Well, I am not sure if ALSA can use the serial port devices for MIDI,
> but you can work around the issue by piping MIDI data from /dev/ttyS0
> to a virtual MIDI or MIDI through device, for example:
>
>   dd if=/dev/ttyS0 of=/dev/snd/midiC1D0 bs=1
>
> > Why is such a simple thing so impossible with Csound5? I tried the
> > "-+rtmidi=alsa -Mhw:1,0" options, and Csound5 doesn't even recognize that
> > I have a virmidi driver in the kernel, complaining of no such device.
>
> Did you try using the PortMidi driver (which is the default) ?
> If you do use -+rtmidi=alsa then make sure that you select the right
> device name. Also, the virmidi driver in ALSA tends to behave in a
> somewhat buggy and inconsistent way; I often need to use hacks like
> this to pipe data from one virmidi port to another, and only then can
> I read MIDI:
>
>   dd if=/dev/snd/midiC1D0 of=/dev/snd/midiC1D1 bs=1
>
> > I tried the "-+rtmidi=null -M/dev/ttyS0" line, and that failed too....why
> > is this so hard?
>
> The 'null' MIDI driver, as its name says, is a dummy one, so you cannot
> expect it to read or write any actual MIDI devices.
>
> If you still cannot solve the problem, then the Csound4-style MIDI I/O
> that uses files in /dev can easily be added back as an -+rtmidi option.
>
>
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