akjmicro I'm about to all but give up on faust.... :/
the "fun" thing here is that this is not FAUST's fault: FAUST is just a C++ project that uses Bela's Midi class, just like PureData and Csound and the C++ code below do. So it should work well just the same!
akjmicro ALSA lib rawmidi_hw.c:233🙁snd_rawmidi_hw_open) open /dev/snd/midiC1D0 failed: No such device
That means that there is another program using that port (this should be hw:1,0,0). Did you stop any amidi -d -p hw:1,0,0 running when you started the FAUST project? Only one program at a time can access that port.
Can you try to run the program below ? If it runs successfully, stop it and run the faust program immediately after it. Does it still show the same ALSA lib error line ?
If the error persists, to find out what process has the port open, run:
find /proc/*/fd -lname "/dev/snd/*" -exec bash -c 'ps -`echo {} | sed "s:/proc/\([0-9]*\)/fd/.*:\1:"`' \;
#include <Bela.h>
#include <libraries/Midi/Midi.h>
Midi gMidi;
bool setup(BelaContext *context, void *userData)
{
// Initialise the MIDI device
if(gMidi.readFrom("hw:1,0,0") < 0) {
fprintf(stderr, "Unable to read from MIDI port\n");
return false;
}
gMidi.enableParser(true);
return true;
}
void noteOn(int noteNumber, int velocity)
{
printf("note on: %d %d\n", noteNumber, velocity);
}
void noteOff(int noteNumber)
{
printf("note off: %d\n", noteNumber);
}
void render(BelaContext *context, void *userData)
{
// At the beginning of each callback, look for available MIDI
// messages that have come in since the last block
while(gMidi.getParser()->numAvailableMessages() > 0) {
MidiChannelMessage message;
message = gMidi.getParser()->getNextChannelMessage();
message.prettyPrint(); // Print the message data
// A MIDI "note on" message type might actually hold a real
// note onset (e.g. key press), or it might hold a note off (key release).
// The latter is signified by a velocity of 0.
if(message.getType() == kmmNoteOn) {
int noteNumber = message.getDataByte(0);
int velocity = message.getDataByte(1);
// Velocity of 0 is really a note off
if(velocity == 0) {
noteOff(noteNumber);
}
else {
noteOn(noteNumber, velocity);
}
}
else if(message.getType() == kmmNoteOff) {
// We can also encounter the "note off" message type which is the same
// as "note on" with a velocity of 0.
int noteNumber = message.getDataByte(0);
noteOff(noteNumber);
}
}
}
void cleanup(BelaContext *context, void *userData)
{
}
snd_rawmidi_hw_open) open /dev/snd/midiC1D0 failed: No such device