Advanced Linux Sound Architecture

The SiS735 has nearly the same design like the
intel8x0. I found two differences between the chips:
1.) The status registers are not at offset 6, but at 8.
The position in current buffer is not at offset 8, but
at 6.
2.) The size of a buffer is not given in samples, but
in bytes.

I've made a copy of the intel8x0 driver and performed
the modifications due to the differences. After that
the SiS735 is supported as an AC'97 codec at fix rate.

It runs ok with aplay, kde (artsd), xmms, but can't
play sounds on other rates than 48k.

Because I also don't have documentation to the SiS735 I
don't know if it was a good idea to create a copy of
the intel8x0. Perhaps it's better to support intel8x0
and sis735 in one file, because the modifications were
only little.

The patch contains new files for a sound card 'sis735'.
I've made one patch against the 0.5 version and one
against the 0.9.