I am installing this driver:
http://www.alsa-project.org/alsa-doc/doc-php/template.php?company=Cirrus+Logic&card=.&chip=CS4280%2C+CS4610%2C+CS4612%2C+CS4614%2C+CS4615%2C+CS4622%2C+CS4624%2C+CS4630&module=cs46xx

And I have followed all the steps and completed them successfully  until I got to modprobe section. This was the output:

debian:/usr/src/alsa-lib-1.0.9rc4# modprobe snd-cs46xx;modprobe snd-pcm-oss;modprobe snd-mixer-oss;modprobe snd-seq-oss
WARNING: Could not open '/lib/modules/2.6.17/kernel/sound/core/seq/snd-seq.ko': No such file or directory
WARNING: Could not open '/lib/modules/2.6.17/kernel/sound/core/seq/snd-seq-midi-event.ko': No such file or directory
FATAL: Could not open '/lib/modules/2.6.17/kernel/sound/core/seq/oss/snd-seq-oss.ko': No such file or directory


Btw, I am using Debian Sarge (stable) with the latest kernel. I custom configured my kernel as well, don't know if I incorporated these modules. Maybe someone can provide them to me in a link if possible. I truly would appreciate it.