Date: Thu, 25 Oct 2001 15:58:17 -0600
From: "Todd C. Miller" <[EMAIL PROTECTED]>
Subject: Re: [LIB] Sound in Openbsd

Works fine for me on both my 50CT and 100CT (in fact my 50CT is
operating as my mp3 jukebox).  The 50CT is really too slow to
use use the wss driver so I use sb there.

You do have to choose either wss or sb and disable the one you
are not using.  Also, you must make sure the sound settings in
the BIOS match the kernel config.

For sb, things should "just work" as long as you disable wss.
Here is the audio portion of the dmesg from my 50CT:

sb0 at isa0 port 0x220/24 irq 5 drq 1: dsp v3.01
midi0 at sb0: <SB MIDI UART>
audio0 at sb0
opl0 at sb0: model OPL3
midi1 at opl0: <SB Yamaha OPL3>

And here is my 100CT using wss:

wss0 at isa0 port 0x530/8 irq 5 drq 0: CS4231 or AD1845 (vers 4)
audio0 at wss0

Note that the default IRQ for wss in OpenBSD is IRQ 10 (I changed
it to IRQ 5 to match the BIOS).
I seem to recall that I had to change the BIOS to use drq 0
for both play and record.

Anyway, the only real trick is to make sure the BIOS audio settings
match your kernel.

 - todd




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