On Wed, Jun 15, 2016 at 12:12:24AM +0100, Chemsi Mehdi wrote: > Dear experts, > > I am too new in ALSA, trying to read a little bit and understand. > I want to underatnd how ALSA userspace API calls kernel space code ? > for example when I call snd_pcm_open() which code is called in kernel > sound code ? easist would be to start gdb on alsa-lib snd_pcm_open() and start tracing the steps. > and how the link is made ? via IOCTL/write ? IOCTL, see sound/core/pcm_native.c on kernel side.. -- ~Vinod _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
