Subject: Re: Preliminary AC'97 modem support in auich(4)
To: None <>
From: Jared D. McNeill <>
List: current-users
Date: 04/12/2005 13:47:06
On Tue, 2005-04-12 at 18:42 +0200, Matthias Drochner wrote:
> Fwiw, I don't see any sign of the modem going off-hook
> nor a dial tone.

That's because it wasn't being powered up properly. The patch I just
posted to current-users should (hopefully) solve this; you will see a
message like this if it's not working:

  auich1: error setting modem controls (val=0xf200, status=0xff00)

status=0xff00 means "everything is shut off", which is the problem I'm
having with my Conexant codec -- I can't get the darn thing to power-up!


> It's a Dell Laptop. With a current kernel the boot messages are:
> auich0 at pci0 dev 31 function 5: i82801CA (ICH3) AC-97 Audio
> auich0: interrupting at irq 11
> auich0: The 2nd codec is ready.
> auich0: ac97: Crystal CS4205 codec; dedicated mic channel, tone, simulated 
> stere
> o, bass boost, 20 bit DAC, 18 bit ADC, SRS 3D
> auich0: ac97: ext id 209<AMAP,VRM,VRA>
> auich1 at pci0 dev 31 function 6: i82801CA (ICH3) AC-97 Modem
> auich1: interrupting at irq 11
> auich1: The 2nd codec is ready.
> auich1: ac97: ext mid 4001<LINE1>, secondary codec
> [...]
> auich0: measured ac97 link rate at 48004 Hz, will use 48000 Hz
> audio0 at auich0: full duplex, mmap, independent
> audio1 at auich1: full duplex, mmap, independent
> Before your last changes, I got an additional line:
> auich1: ac97: Silicon Laboratory unknown (0x53494c21) codec; no 3D stereo
> Didn't have any time to look into details yet.
> best regards
> Matthias