From alsa-devel-owner@alsa.jcu.cz  Sun Mar  8 11:12:55 1998
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From: "John Butler" <john@sandy.force9.co.uk>
To: "Jaroslav Kysela" <perex@jcu.cz>
Cc: <alsa-devel@alsa.jcu.cz>
Subject: Re: Problems with driver version 0.0.5
Date: Sun, 8 Mar 1998 09:57:41 -0000
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Hi!

> > I've just compiled the 0.0.5 version of the driver, and it won't work
> > with my SBPro.. It detects it and installs the driver okay, but when I
> > try to play an au file, nothing happens, and cat just blocks.
> 
> OK. I should only verify again if it works with ES1688 chip which
emulates
> SB Pro because I don't have access to old 8-bit SB soundcards.
 
First of all, I managed to get it to work if I installed the snd-pcm-oss
driver as well. so is tghere a bug that means the snd-pcm driver wrongly
needs something in the snd-pcm-oss driver? (Surely, I should be able to use
the native interface without the OSS part too?).

Another thing was, whats the different between the /dev/audio and the
/dev/dsp? Is it that one is mono and one is stereo? A mono sound file is a
bit mangled coming out of /dev/dsp, but okay out of /dev/audio. This would
make sense as the sound file will only have one byte for each little bit,
whereas the soundcard needs one for each speaker. If this is the case, is
there a native interface for mono output?

> This is header from sb8.c file:
> 
> /*
>  *  Copyright (c) by Jaroslav Kysela <perex@jcu.cz>
>  *  Routines for control of 8-bit SoundBlaster cards and clones
>  *  Code needs to be debugged... I don't have old SB soundcards.
>  */
> 
> I looked again to code and I found only this bug, but this bug should not
> change anything for command 'cat file > /dev/audio':

If you like, I could help to debug the code, and also take over maintaining
it (do I remember a ??? by the maintainer section of the 8bit cards?).

Chris Butler <chrisb@sandy.force9.co.uk>

