OK I got ALSA working (after a good bit of rtfm, hint: try loading the snd.o module without any params first (eg insmod); in my case, explicitly specifying params with default values seemed to break things).
The full-duplex support works for me: I can play a wav file and record a different one at the same time. Compiled snd with ALSA support, this seems to work, but still no obvious way to full-duplex record. No PCM in button, no nothing. Hm. -chris > My current line of attack makes the assumption that the OSS/Free driver > included with my kernel does not support full-duplex operation on > the sb awe 64. The latest commercial OSS driver advertises this feature, > so I tried installing the demo version, but this failed completely as > their install script seems to consider Debian too nonstandard to be worth > supporting. So my next, and possibly only remaining, option is ALSA. > I've compiled the latest drivers, libs, and utils source from > alsa-project.org, > but I haven't successfully configured the drivers yet. There is a tool > called alsaconf, available from Debian, which puts some stuff in > /etc/modutils; unfortunately it did not detect my soundcard > (something about a missing module snd-detect), and adding it manually > didn't work. The fact that my card is isapnp (and that I've also got an isapnp > ethernet card) probably doesn't help. ALSA has its own isapnp support, > then there is isapnptools, so that alone makes three possible choices. > Alsa advertises full-duplex support, and snd checks for ALSA at compile time, > so I'm hoping that the two together will allow me to record in full-duplex. > (Maybe the pcm button you mention above will become enabled once the ALSA > driver is used, for example.) > > -chris > > >
