On Mon, 2008-02-18 at 20:17 +0530, Pharaoh . wrote: > On Feb 15, 2008 10:23 PM, Takashi Iwai <tiwai@xxxxxxx> wrote: > > At Thu, 14 Feb 2008 20:54:28 +0530, > > Pharaoh . wrote: > > > Now, I have to support rawmidi interface also. Is it possible to write a > > > userspace > > > plugin for making MIDI work? Where can I get sample code etc? > > Another possibility is to write an ALSA sequencer client, and load > > snd-virmidi driver. Then you can connect to a rawmidi device as you > > like. > Thanks Takashi, I am not sure I understood this fully..Can you point me to > some sample > code or relevant documentation. Look the code of aseqdump from alsa-utils project. You don't need anything related to kernel, just a normal client that creates a port and listens for events. Once you receive a MIDI event, process it and do the magic in your card. $ aseqdump Waiting for data at port 129:0. Press Ctrl+C to end. Source_ Event_________________ Ch _Data__ $ aconnect -iol $ aplaymidi -p 129:0 /usr/share/denemo/manual/4for2new.midi Please note that with the alsaseq API you receive processed MIDI data... This could be a plus for your development (you don't have to implement the low-level midi parser). Timidity is a software synth that follow this approach. About snd-virmidi, is almost the same, but the port is a 'kernel port' and it represents a virtual card. I'm not sure what advantages has it. -- Aldrin Martoq <amartoq@xxxxxxxxxxxxx> _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
