Tightening kernel for Mac Mini G4
Andreas Tobler
andreast-list at fgznet.ch
Wed Jan 22 18:19:58 UTC 2014
On 22.01.14 17:25, Justin Hibbits wrote:
> On Wed, 22 Jan 2014 15:33:23 +0000
> Alexey Dokuchaev <danfe at FreeBSD.org> wrote:
>> Fourth question is of less importance, but still. In
>> powerpc/GENERIC, I see this sound support section:
>>
>> device sound # Generic sound driver (required)
>> device snd_ai2s # Apple I2S audio
>> device snd_davbus # Apple DAVBUS audio
>> device snd_uaudio # USB Audio
>>
>> But nonetheless:
>>
>> $ mixer
>> mixer: /dev/mixer: No such file or directory
>>
>> Is internal sound card supported? If yes, which module should I load?
>>
>> Thanks,
>>
>> ./danfe
>
> Can you drop the output of 'ofwdump -ap' somewhere (freefall?) and I
> can take a look at it. Internal sound on most PowerPC Apple hardware
> is supported, I'm curious why yours isn't.
Sound works but it lacks a 'visible' codec. In the device tree there is
no codec mentioned. It has a simple DAC called toonie. And the driver
for this is missing.
If the codec is missing, the mixer device is also missing.
It is enough when you have:
device sound # Generic sound driver (required)
device snd_ai2s # Apple I2S audio
If you have an external USB gadget then you can use snd_audio.
Works fine with low-cost (high-quality) usb-ad/da.
Andreas
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