Harsha, Priya wrote: > If I define mixer controls to switch between each substream, I wrote "mixer controls to switch between these settings for each substream", i.e., each substream would have its own flag. > can I use snd_pcm_t->private_data to communicate if it's a voice or > audio ALSA does not have a predefined mechanism to set it from userspace. Your driver can initialize it when it is probed, or it can change it when opening the substream. HTH Clemens _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel