Hi,

On 10/26/06, Adrian Christiansen <adrian.christiansen@gmail.com> wrote:
> But at least I got X:) I'll send the modelines to the mailinglist if I
> find some that works.

Fine! :-)

> Next up is sound:)

Audio works great, since the eMac uses the TAS3004 audio chip
supported by the snapper(4) driver. You simply have to activate the
driver and build the kernel.

The complete documentation on building a kernel is available on the
NetBSD website:

http://www.netbsd.org/Documentation/kernel/#how_to_build_a_kernel

In the step 6 in which you edit the config file, you simply need to
activate the driver:

Search the string "snapper" to find the following line:

#snapper* at obio?			# Snapper audio device

Uncomment the line by removing the first hash character (#) .

Just a few lines above the snapper line you have this:

#ki2c*	at obio?			# Keywest I2C

You need to uncomment that line too since ki2c is needed by snapper(4)
to operate.

Then search again by "snapper" to find the following line:

#audio*	at snapper?

Again, uncomment it by removing the # character. This will attach the
audio(4) interface to the snapper(4) driver.

By the way you can uncomment the OFB_ENABLE_CACHE option too, since it
greatly improves the console speed:

# OFB_ENABLE_CACHE speeds up the console on many machines, but should
# not be enabled on some older machines, such as the rev. A-D iMacs.
#options 	OFB_ENABLE_CACHE	# Speed up console

Of course this is unrelated to audio and is not required.

Then save the file and compile the kernel as documented. Then install
it as /netbsd (keep the generic kernel as /netbsd.old just in case,
but it should work out-of-the-box).

Then audio will work fine. You can use mixerctl(1) to set the master
volume. In example:

mixerctl -w monitor.master=192

(use mixerctl -v -a to view all the controls)

To test it, you can play some WAV or AU file using the audioplay(1)
program which comes with NetBSD. In example:

audioplay -d /dev/audio file.wav

Then you can use pkgsrc to install what audio program you need, and it
should work out-of-the-box.

HTH

    -Marco