Subject: Re: CS4235 audio
To: Lennart Augustsson <>
From: Mark Brinicombe <>
List: tech-kern
Date: 09/22/1998 00:28:26
On Mon, 21 Sep 1998, Lennart Augustsson wrote:

> >   Has anyone had CS4235 based PnP audio cards workings ?
> There's something weird with the CS423x chips.  They don't seem to reset
> properly during the PnP reset phase.  The only way I've been able
> to get them to work is by doing an inb(0x388) before any PnP code
> runs.  This is a hack to horrible to go into NetBSD!
> So, yes, they can be made to work, but I don't know how to do it cleanly.
>     -- Lennart

  Had a go at trying this but it did not seem to help. I fiddled with some
of the debug printing from the probe code and get

wss0 at isapnp0 port 0x534/4,0x388/4,0x220/16 irq 5 drq 1,0
ad_detect_B (40/ff)
ad_detect_C (40/ff)
ad1848: unknown codec version 0x0c
wss0: ad1848_probe failed

I'll continue to fiddle.

The inb(0x388), did that come from trial and error or is it documented
somewhere ?