[alsa-devel] How to change the sound volume?

Hi,

How would a simple alsa-based sound player change the playback volume? I've been looking into the mixer interface, but there's no connection to snd_pcm_t*, so I'm not sure this is what I need to use. I only want to change the sound volume of my player, without altering the sound streams of the other applications.

Thanks,

Cosmin