Re: [alsa-devel] question on hardware mixing

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