Re: module_init fails with OEM SoundBlaster Live!

[Takashi Iwai <tiwai@suse.de>]

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At Mon, 3 Nov 2003 15:56:06 +0000,
Peter Chapman wrote:
> 
> On Mon, Nov 03, 2003 at 03:45:52PM +0100, Takashi Iwai tiwai-at-suse.de |alsa-devel| wrote:
> > At Mon, 3 Nov 2003 13:20:12 +0000,
> > Peter Chapman wrote:
> > > 
> > > Is this what you mean?
> > > $ cat /proc/asound/card0/codec97#0/ac97#0-0
> > > 0-0/0: Cirrus Logic CS4297A rev 4
> > > 
> > > Capabilities     : -headphone out-
> > > DAC resolution   : 20-bit
> > > ADC resolution   : 18-bit
> > > 3D enhancement   : Crystal Semi 3D Stereo Enhancement
> > > 
> > > Current setup
> > > Mic gain         : +0dB [+0dB]
> > > POP path         : pre 3D
> > > Sim. stereo      : off
> > > 3D enhancement   : off
> > > Loudness         : off
> > > Mono output      : MIX
> > > Mic select       : Mic1
> > > ADC/DAC loopback : off
> > > Extended ID      : codec=0 rev=0 AMAP DSA=0
> > > Extended status  :
> > > SPDIF Control    : Consumer PCM Category=0x2 Generation=1 Rate=48kHz
> > > 
> > > I can't find any mention of IEC958, but then I don't really know what
> > > I'm doing! I can check the chips on the card itself when I get home, if
> > > that will help.
> > 
> > IEC958 is aka SPDIF.  you see it in the above too :)
> > 
> > does the board have spdif i/o?
> > 
> > 
> > Takashi
> 
> Oh, I see! :) Yes, there is an spdif connector on the card, however I've
> never managed to make it work, either under Linux or Windows. Not even
> using Dell's own Windows drivers.
> I've always suspected that I had a crippled version of the card from
> Dell, but maybe it's just defective?

no idea.  but you can try the attached patch.
it disables the ac97's spdif control but it still keeps the emu10k1's
one.  if you have an spdif receiver, give it a try.


Takashi

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Index: alsa-kernel/pci/emu10k1/emumixer.c
===================================================================
RCS file: /suse/tiwai/cvs/alsa/alsa-kernel/pci/emu10k1/emumixer.c,v
retrieving revision 1.16
diff -u -r1.16 emumixer.c
--- alsa-kernel/pci/emu10k1/emumixer.c	23 Oct 2003 17:00:15 -0000	1.16
+++ alsa-kernel/pci/emu10k1/emumixer.c	3 Nov 2003 18:09:48 -0000
@@ -540,6 +540,11 @@
 			return -ENOMEM;
 		if ((err = snd_ctl_add(card, kctl)))
 			return err;
+		if ((kctl = ctl_find(card, SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT))) != NULL) {
+			/* already defined by ac97, remove it */
+			/* FIXME: or do we need both controls? */
+			remove_ctl(card, SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT));
+		}
 		if ((kctl = snd_ctl_new1(&snd_emu10k1_spdif_control, emu)) == NULL)
 			return -ENOMEM;
 		if ((err = snd_ctl_add(card, kctl)))