Re: [patch] little-endian dmasound silently fails

On Fri, Feb 4, 2000, Takashi Oe [off-list ref] wrote:

Maybe because it does support it?  Well, seriously, I've just checked the
driver is okay wrt *S16_LE/BE at least on AWACS rev. 2.

First, I wrote an app to play a sound file correctly when AFMT_S16_BE is
specified.  Then, I modified the app so that it will byte swap the 16-bit
data but still with AFMT_S16_BE.  As expected, it made some annoying
noise when it was asked to play the same sound file.  Now, I modified the
code again to let it specify AFMT_S16_LE instead.  Well, it played the
sound file correctly just as hoped.

I know a lot of people are not happy about our sound driver, but I
don't think this is dmasound's fault.  Luckily for us, many "broken"
OSS-compatible apps tend to work just fine if we simply modify them to ask
for AFMT_S16_NE not *_LE, though performance critical apps should be fixed
with more effort.

Actually, I had some reports about this problem too and I'm wondering if
all revisions of AWACS actually support byte swapping. (I think I
remember seeing a comment on this list telling explicitely that some
revisions didn't support it).


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