FreeBSD 9-STABLE: missing mixer

[donat314 at gmx.com]

(wrong click: sorry)
Hi,
 I recently installed 9.0 amd64. Everything done, the fact that I was not getting any sound while having "/dev/dsp"s and mixer devices drag my attention, since
 device sound
 device snd_hda
 are now in GENERIC (snd_hda is the one I was using under 8.2). But, when I try to run the mixer command, I receive
 command not found: mixer

 Any idea?

 Eric.