sound driver for Dell Latitude CP (and other laptops)

sound driver for Dell Latitude CP (and other laptops)

[Tony Nugent]

Is it possible to get the sound card working on laptops?

What I have here is a Dell Latitude CP, but the docs for the hardware have
been lost or misplaced.  I have absolutely no idea what sort of sound card
it has :-(

The windoze setup on it mentions the following:
	Crystal PnP Audio System CODEC
	YAMAHA SXG50C Driver
	WaveStream Music Synthesizer

I've tried several things to get the sound working on it, but to no avail.
The Crystal chip mentioned with the RedHat sound config utility (v0.27 with
RH5.2) hasn't been successful.

I also have (not with me at the moment) an older 486-100 Osborne that I'd
also like to get the sound working on with linux.

Any hits would be appreciated.

Cheers
Tony
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  Tony Nugent <Tony.Nugent@usq.edu.au>           <linux@usq.edu.au>
  Computer Support Officer                       Faculty of Science
  University of Southern Queensland, Toowoomba Oueensland Australia
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Re: sound driver for Dell Latitude CP (and other laptops)

[Derrick J Brashear]

I have a Dell Latitude CPi; Based on what you said I assume the audio is
the same. I'm ucrrently using ALSA with the following configuration:
add to /etc/conf.modules:
alias char-major-14 snd
alias snd-minor-oss-0 snd-card-cs4232
alias snd-minor-oss-3 snd-pcm1-oss
alias snd-minor-oss-4 snd-pcm1-oss
alias snd-minor-oss-5 snd-pcm1-oss
alias snd-minor-oss-12 snd-pcm1-oss
alias snd-card-0 snd-card-cs4232
options snd snd_major\x14 snd_cards_limit=1
options snd-card-cs4232 snd_index=1 snd_port=0x530 snd_irq=5 snd_dma1=1 snd_dma2=0

Then:
modprobe snd-card-0

Then go; You will need to unmute the sound card before you can use it; 
cat /proc/asound/0/mixer0 | sed s/mute// > /proc/asound/0/mixer0

Note that I needed to configure e.g. the parallel port from within windows
to be not ECPP or something like that; Basically, if Windows can do duplex
audio, this will work, otherwise there are 3 things you must pick from,
which are ECPP, duplex audio, and something else, and I don't remember how
I discovered what was what.

-D

Re: sound driver for Dell Latitude CP (and other laptops)

[Derrick J Brashear]

On Sun, 29 Nov 1998, Tony Nugent wrote:
> 
> Many thanks for this invaluable help in pointing me in the right
> direction... it's very nice to have some noise come out of this neat little
> box :-)
> 
> I can only assume that this "ALSA" you mention is the OSS driver?

Nil, look at http://alsa.jcu.cz

-D

Re: sound driver for Dell Latitude CP (and other laptops)

[Tony Nugent]

On Sat Nov 28 1998 at 21:19, Derrick J Brashear wrote:

> I have a Dell Latitude CPi; Based on what you said I assume the audio is
> the same. I'm ucrrently using ALSA with the following configuration:
> add to /etc/conf.modules:

I'm using a RedHat 5.2 installation, with it's (original) pre-0.7 2.0.36
kernel.

None of this worked :-(

> alias snd-card-0 snd-card-cs4232

I don't have any modules called snd-<anything> but I do have a module
called cs4232.o

Which I tried.  I had to pre-load some other modules, then insmod the
cs4232 driver giving it io/dma/dma2/irq values.

Thanks to all the clues... it worked!   :-)

Many thanks for this invaluable help in pointing me in the right
direction... it's very nice to have some noise come out of this neat little
box :-)

I can only assume that this "ALSA" you mention is the OSS driver?

BTW, I've done all this from the command line.  When I get
/etc/conf.modules tweaked rignt to get it working, I'll post the results
here.

Surely this would be useful in an FAQ or some sort of home page devoted to
configuring laptops?  (Can someone point me in a good direction to post
this info to?)

Cheers
Tony
 -=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-
  Tony Nugent <Tony.Nugent@usq.edu.au>           <linux@usq.edu.au>
  Computer Systems Officer                       Faculty of Science
  University of Southern Queensland, Toowoomba Oueensland Australia
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