Re: Sound - Adlib/SB/PC Speaker

["Ben Kohlen" <bkohlen@hotmail.com>]

Writing an audio file to /dev/dsp || /dev/audio is the professional way to 
do it under linux.  Device files is how you access drivers->hardware on any 
UNIX.

If you want to see how a soundblaster driver works, look in the linux source 
under linux/drivers/sound/sb_*.c (particularly sb_audio.c).

Look at audio.c to see the implementation of the /dev/audio character 
device.

As far as the PC-speaker goes, i've never thought about it, and I am not 
aware of a /dev/ device associated with it, although i am sure there is one. 
You always seemed like a guy that didn't mind bare-metal programming, so if 
you are interested, find the IO range of the hardware and write your own 
character device for it. (you know how to use inp()/outp() right?) In fact, 
if anyone wanted a good introduction to writing device drivers under linux, 
that would be an almost ideal project, as the hardware isn't too complicated 
and you could mostly focus on learning how linux drivers work. Just get 
yourself a copy of "Linux Device Drivers" from O'Reilly first, as it is the 
new definitive guide.

Real-time sound? no, in fact, i don't think i follow... explain?

>From: Lionel Pinkhard <lionelp@worldonline.co.za>
>Reply-To: gameprogrammer@gameprogrammer.com
>To: gameprogrammer@gameprogrammer.com
>Subject: Sound - Adlib/SB/PC Speaker
>Date: Thu, 03 Jan 1980 02:25:47 +0000 (UTC)
>
>Hey guys,
>
>Can somebody tell me how does Linux sound work? I'm especially interrested
>in the PC Speaker, since that's what I know the LEAST about, I know that
>with the other two, it's possible to write a sound file to /dev/audio, or
>/dev/dsp, but is there a more 'professional' way of doing this? Actually,
>I'm talking about real-time sound, and not sound from a file, you guys
>know what I mean?
>
>Well, hope somebody can help!!!
>
>Lionel
>
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