They're not widely available, but I don't think much effort has gone into
making them available. Speaking purely from conjecture, I suppose that if the
idea is to keep the cost down, they could well be using off-the-shelf DSP
chips, and so we might not have too much trouble as long as they haven't
rubbed off all the markings or potted the things.
> I could imagine timing needs that might require one
> to extend Linux interrupt handling or scheduling a tiny bit, but that
> is about the only special need that comes to mind.
Not likely. The IRQ handling far surpasses anything available in Windows, and
scheduling isn't a problem when it's all in the kernel.
> Maybe the issue is that you have to implement some huge modem protocol stack?
I don't think that'll be necessary. They're fairly simple beasts - after all,
it's just a tty, essentially.
---- ---- ----
David Woodhouse, Robinson College, CB3 9AN, England. (+44) 0976 658355
Dave@imladris.demon.co.uk http://www.imladris.demon.co.uk
finger pgp@dwmw2.robinson.cam.ac.uk for PGP key.
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