record on new Powerbooks?

record on new Powerbooks?

[Niklas Werner]

Hi all,

I can't get the internal mic or recording from either usb or line-in to 
work on a new Powerbook 15" (Aluminium).
The driver works (detects a "snapper"), but only for playback (and DRC and 
bass/treble).

Is there any configuration feature I overlooked?
for the record: kernel 2.6.0-test9 with benh-patches.

details on the machine at: 
"http://developer.apple.com/documentation/Hardware/Developer_Notes/
Macintosh_CPUs-G4/15inchPowerBookG4/index.html"

I gladly test any patches .-)

Have fun*

Niklas



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Re: record on new Powerbooks?

[Takashi Iwai]

At Wed, 29 Oct 2003 19:03:02 +0100,
Niklas Werner wrote:
> 
> Hi all,
> 
> I can't get the internal mic or recording from either usb or line-in to 
> work on a new Powerbook 15" (Aluminium).
> The driver works (detects a "snapper"), but only for playback (and DRC and 
> bass/treble).

the capture on snapper may not work.  the code was added at the time i
had time to touch a powerbook for an hour and found that the capture
DMA exists.  but, apparently, some codec (preamp?) initialization
would be needed.

perhaps one can see more detailed information in drawin.


Takashi


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Re: record on new Powerbooks?

[Niklas Werner]

Am Mittwoch, 29. Oktober 2003 19:15 wurde geschrieben:
> At Wed, 29 Oct 2003 19:03:02 +0100,
>
> Niklas Werner wrote:
> > Hi all,
> >
> > I can't get the internal mic or recording from either usb or line-in
> > to work on a new Powerbook 15" (Aluminium).
> > The driver works (detects a "snapper"), but only for playback (and
> > DRC and bass/treble).
>
> the capture on snapper may not work.  the code was added at the time i
> had time to touch a powerbook for an hour and found that the capture
> DMA exists.  but, apparently, some codec (preamp?) initialization
> would be needed
errm, I found out, it sort of works... (playing with freqtweak)
well: the record level is sort of controlled with the master fader: 
sometimes the gain is reduced, sometimes there's just static noise 
(strange that). 
All in all it does not seem to be predictably controllable.
> perhaps one can see more detailed information in drawin.
>
maybe the darwin-sources help...
>
> Takashi

Niklas



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