On 18-Feb-02 Guenther Sohler wrote:
> Hello ALSA Gang,
>
> In my system i have primarily two important alsa ports for me
>
> 64:0 is the external midi keyboard
> 65:0 is the wavetable synth of my creative audixy
>
> I have written following code:
>
>
>#include<alsa/asoundlib.h>
>#include <stdio.h>
>#include <stdlib.h>
>#include <string.h>
>#include <errno.h>
>#include <ctype.h>
>#include <getopt.h>
>
>
>
>
>
> int main(int argc, char *argv[])
> {
> int xxx;
> snd_seq_event_t ev;
> snd_seq_t *handle;
> sscanf(argv[1],"%d",&xxx);
> snd_seq_open(&handle,"hw",SND_SEQ_OPEN_DUPLEX,0);
> bzero(&ev, sizeof(ev));
> ev.queue=SND_SEQ_QUEUE_DIRECT;
> ev.dest.client=xxx;
> ev.dest.port=0;
> ev.type = SND_SEQ_EVENT_NOTEON;
> ev.data.note.channel = 0;
> ev.data.note.note = 64;
> ev.data.note.velocity = 127;
> snd_seq_event_output_direct(handle, &ev);
this also causes the same error
> sleep(1);
> ev.type = SND_SEQ_EVENT_NOTEOFF;
> snd_seq_event_output_direct(handle, &ev);
Now I have found, that this command causes an error Nr 28
"No Space left on device" But I dont have an idea, why ?
> return 0;
> }
>
> this code works for outputting events to the wavetable, but it very seldom
> works for outputting to the external midi keyboard.
> If I integrate this code to my application. it works sometimes for outputting
> to the wavetable but i have never seen it working with external midi.
>
> Is there an inportant feature missing in my code to make its work more
> relyable
> ? (apart from error checking).
> Is a queue important for reliability ?
> And what about a polling descriptor ?
>
> I am looking forward to makeing my app reliable and working
>
>
> rds guenther
>
>
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Guenther Sohler
NewLogic Technologies AG
Millennium Park 6
A-6890 Lustenau
Phone: +43-5577-62000-507
E-Mail: [EMAIL PROTECTED] Fax: +43-5577-62000-988
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