Just though I would pass this info along, in case it might help someone. I use the cs4232 OSS sound module to drive my PnP onboard sound card. The driver specifically supports PnP. When I switched to the 2.4.2 kernel from 2.2.18, I noticed that I could no longer insmod cs4232 - it said "no such device". After some poking around on the kernel list, I found that this was because I had enabled the ISA PnP feature in the kernel, as well as standard PnP. Apparently the kernel was grabbing the card before the sound driver had a chance to. Recompiling and leaving out ISA PnP support from the kernel fixed my problems.
Anyway, if you have a similar problem with this or other modules supporting PnP, give this a shot. HTH - Tom
