udev not passively adding alsa-oss devices...

[Aaron Gaudio <prothonotar tarnation dyndns org>]

Whenever I boot up my laptop, I have /etc/rc.modules manually load the
various alsa-oss modules. However, udev does not appear to be getting
events and adding devices (e.g. /dev/dsp) for these. When I manually
run /sbin/udev_start, the appropriate devices get created.

Is this a udev problem or is it caused by the alsa-oss devices not
registering correctly with hotplug, etc. (or is it something I might be
doing)?