PowerMac G4, snd_ai2s and FreeBSD 8.x

[Torfinn Ingolfsen]

When I installed FreeBSD[2] 8.1-beta1 on my PowerMac G4[1], I could
load the snd_ai2s module with just 
snd_ai2s_load="YES"
in /boot/loader.conf

After upgrading to FreeBSD 8.2-prerelease (using csup / make
buildworld), it complained during boot: 

KLD file snd_ai2s.ko is missing dependencies

and when running 'kldstat' the snd_ai2s module wasn't
loaded. If I did 'kldload snd_ai2s' from the command line it loaded fine.
Now I find that I need the following in /boot/loader.conf in order for
the snd_ai2s module to load:
sound_load="YES"
snd_ai2s_load="YES"

Is it supposed to work like that?

References:
1) http://sites.google.com/site/tingox/powermac_g4
2) http://sites.google.com/site/tingox/powermac_g4_freebsd

-- 
Torfinn