SB X-Fi driver fixes (Re: Testers wanted: New SB X-Fi driver)

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At Sun, 07 Jun 2009 18:10:32 +0200,
I wrote:
> 
> At Sun, 07 Jun 2009 14:00:26 +0200,
> MonsieurWeller wrote:
> > 
> > Thanks for reply. Hope Creative engineers read this :D.
> > Two other little things :D:
> > - The sound seems really really to loud compared to my audigy2 zs ( for
> > the same level: pcm/master/etc... 74 in alsamixer for the audigy vs 26
> > for the xfi)
> 
> Yes, it's a known issue.  100% doesn't correspond to 0dB but
> overdriving. 0dB is about 70% or so, and the volume scale doesn't look 
> logarithmic.

FYI, the latest version I committed right now contains the following
fixes:

- The volume scale is corrected; 100% corresponds to 0dB now
- The dB scale is also shown (in the supported mixers)
- The native timer interrupt is used for updating PCM streams on
  emu20k1 so that you get more accurate updates.  On emu20k2, still
  the system timer is used.  PA should work better now on emu20k1.
- Mixer controls have device number 0 (just internal issue)
- 64bit DMA support
- SG-buffer support
- Fix surround / rear name confusion
- Fix build on non-intel architectures
- Lots of code clean-ups


Try the latest alsa-driver snapshot or GIT tree below:
  ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz
  git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6.git


Takashi
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