outb() and hard-realtime

Marco Pantaleoni marco.pantaleoni at gmail.com
Wed Jun 21 12:34:43 CEST 2006

I'd like to call outb() from inside the cycle of a LXRT hard-realtime task
in userspace, to toggle a pin on the parallel port. I wonder if doing so
will force my task in soft-realtime.
I don't think so, because the in*(), out*() functions should expand to
inline calls to their equivalents, but I'd like a more informed answer.

Thanks in advance.

Marco Pantaleoni
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