On Tue, 9 Nov 1999, Bret Indrelee wrote:
> I've got a case in the driver I'm working on. I have two operations to the
> device that must occur within ~45 uSeconds of each other. The closer they
> are spaced, the better. If I get interrupted between the two operations,
> this code will fail. The operation almost always takes less than 6 uSeconds,
> maximum of 50 uSeconds.
>
> In this case, I would have to lock out even the RT stuff, since that could
> easily exceed the ~30-40 uSeconds of slop I have.
IMO these are broken drivers, but if you're putting a realtime machine
together you usually have to look closer at the hardware and the current
RTLinux version has to ignore such problems and hopes everything still
works.
bye, Roman
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