Um, it's possible, but you have to basically pass them to the kernel at boot time, which is unpleasant to say the least. Collect enough of these and what you type to lilo just to get the machine to boot could become a small novella.
The drivers for Intel HDA in particular are currently undergoing "heavy flux" (which is a nice way of saying "changing like mad") and compiling them statically is nowhere close to a useful thing to do. Don't bother.
If you're having trouble with Intel HDA sound, the only thing that's actually likely to work is to upgrade your kernel. The only worrisome part is that since kernel 2.6.23.x is using ALSA 1.0.15 as it's base, and not ALSA 1.0.14 (which is the version of the libraries and so forth that Slackware ships) you might wind up needing to upgrade all the ALSA userspace stuff--then again you might not. At the very least check the ALSA changelog for anything relating to the chipset variant you have or just try the latest 2.6.22.x kernel, since it still uses the same userspace stuff as what Slackware ships. If that sorts it you can stop there instead of having to try 2.6.23.x.
(FWIW, I am using 18.104.22.168 on my laptop for this very reason.)
Last edited by evilDagmar; 12-26-2007 at 08:27 AM.