[LAD] embedded high end audio
dmills at exponent.myzen.co.uk
Thu Jul 31 00:50:15 UTC 2008
On Wed, 2008-07-30 at 20:21 -0400, Lee Revell wrote:
> Heh, this might be crazy enough to work, with O_DIRECT|O_SYNC and
> exclusive access to the raw block device.
> Heck, I've seen embedded audio devices that implement PCM as a stream
> of MIDI messages ;-)
> Wouldn't recommend it if your time has any value, but it would be a neat hack.
I was not planning on using the VFS layer, but thinking about it,
mmap /dev/sdc does have amusing possibilities....
playing a .raw file with a call to sendto.....
It was the physical layer interface that interested me, fairly quick,
well documented, parallel, and unlike the pci bus, the state machine is
It actually feels a lot simpler then some of the approaches using
conventional soundcard chipsets.
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