[alsa-devel] Backported sbxfi driver (UNTESTED!)
xarteras at nostalgicnetworxx.org
Thu Oct 16 14:03:41 CEST 2008
Takashi Iwai <tiwai <at> suse.de> writes:
> $SUBJECT is now on my sound-unstable git tree:
> together with other experimental patches.
> If you're using 2.6.27-rc* git tree, pull the master branch of the
> tree above into yours, and run make oldconfig. That is,
> % cd /your/git-tree
> % git pull git://...../sound-unstable-2.6.git master
> If you are not using 2.6.27-rc*, or not familiar with git, you can try
> alsa-driver-unstable snapshot tarball available at
> Run configure, make and make install as usual ALSA-driver tarball.
> (I didn't check whether the tarball correctly includes the sbxfi
> stuff. It should have been generated automatically. If not, wait
> for a while. If it still doesn't include sbxfi code, please report.
> I'll fix it tomorrow morning.)
> The driver is built only for 2.6.26 or later. If you have an older
> kernel, edit alsa-driver*/kconfig-vers and change the version of
> CONFIG_SND_SBXFI to 2.6.24 or whatever you want. Then run
> ./gitcompile, instead of configure in this case to update the
> configure script.
> The driver is totally untested. It's just compiled without errors,
> but not reviewed after a quick writing. So, don't expect it ever runs
> at the first try. A crash is highly possible.
> There are some build conditions found in sound/pci/sbxfi/sbxfi.c,
> starting with XXX_*. You can change it if you want. As default, it's
> for non-fullduplex but accept different rates. Not sure whether this
> works at all.
> Any test- (and better debugging-) reports are appreciated.
I finally managed to play music over xmms with this driver.
I needed to modify something, because most music is 44100Hz and the driver did
not work with this rate.
< #undef XXX_48K_ONLY
< #define XXX_CONT_RATE
> #define XXX_48K_ONLY
> #undef XXX_CONT_RATE
> case 44100:
> ratec = 0x4c;
It also needs to run in 48000Hz mode or else it will playback way to slow.
I think this flag in ratec switches to 96KHz mode in the X-Fi, in windows this
mode is only available in Audio creation mode, so it must be handled in a
special way somehow.
Great work with the driver, finally I have sound under linux as creative's
driver only oopsed the kernel for me :)
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