Thanks! I'll follow your advice!
By the way, I've used this option (CONFIG_SOUND_VIA82CXXX=m) in my configuration, but alsaconf doesn't find appropriate module. When I used previous kernel alsaconf added thit to my modules.conf:
alias char-major-116 snd
alias char-major-14 soundcore
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias snd-card-0 snd-via82xx
alias sound-slot-0 snd-via82xx
But there is no option for via82xx in Sound options.
It exists for via82cxxx, but not for via82xx.