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Date:      Thu, 18 Apr 2002 15:26:45 +0100
From:      Jean-Mark Dupoux <jmdupoux@lineone.net>
To:        questions@freebsd.org, multimedia@freebsd.org
Subject:   Kernel config parameters for soundcard - 4.4 release
Message-ID:  <3CBED7A5.2E42D328@lineone.net>

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Im having  problems with an option for soundcard  support to put in a
kernel config file. To begin with I added the following lines into the
config file:

device snd
device sb0 at isa? port 0x220 irq 5 drq 0 flags 0x11
device sbmidi0 at isa? port 0x330 irq 9
device opl0 at isa? port 0x388
device joy0 at isa? port 0x200

The kernel compiled properly and successfully loaded the soundblaster
pro 3.1  driver. But I still got  no sound out of the card, using cat
/filename > /dev/audio or > /dev/dsp  and got the same no  sound 
result  using play /filename

when I checked  cat /dev/sndstat it showed that no mixer was loaded,
which seemed like a fair explanation for the silence, so I dug  deeper
in man sb(4). This turned up an extra option for the Sound Galaxy pro
card that I am using which should specifically add mixer support - the
SG card  apparently has a slightly different  mixer from a basic  SB pro
which  includes bass/treble adjustment, and I hoped the problem would be
solved.
So I went ahead and added the suggestion from man sb

options __SGNXPRO__

into the config file, right after the sound devices  section, but  now
the  kernel doesnt compile any more. After running
ln -s /usr/local/kernels/MYKERNELFILE 
I then enter as usual: 
/usr/sbin/config MYKERNELFILE

but that's  as far as the process gets. The output on the screen is:
Error
Unknown option  __SGNXPRO__ (line xxx)

I've  checked and double-checked the relevant  documentation and im sure
I havnt made a typo or syntax error.
What's more that specific  option seems  to have been present going back
quite  a few releases, so I'm truly puzzled why config  wont  accept it

Has anyone else  got experience with this kind of card, or with 
options  parameters for soundcards generally, or should I be thinking
about reporting this to bugs ?

thanks in advance
Jean-Mark Dupoux
jmdupoux_@_lineone.net

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