[alsa-devel] Can ALSA invoke a Callback ?

[Clemens Ladisch]

Ru Vuott wrote:
> I'm using Alsa "Seq" functions.
> 
> My midi-program - obviously - does not know exactly when the extern midi event 'll arrive....
> Has it to read uninterruptedly his port, waiting for the events.... ?

This is done only in single-purpose command-line programs like arecordmidi.
When you have other events, you collect the file descriptors of all your
devices/pipes/whatever, and wait for all of them in a poll()-based loop.

How does your program handle events?  Or are you using a GUI framework?


Regards,
Clemens