Real Time support for cards ?? from John Darrington on 2004-05-18 (gmane.linux.comedi)

From: John Darrington <jdarrington_at_customvis.com>
Date: Tue, 18 May 2004 10:50:57 +0800

What cards (if any) actually are supposed to work in real time, with
kcomedilib and are there any special procedures for building/installing comedi
with real time support?

I have been trying for about a week, but to no avail.  However, the one
comedi device that does work for me in real time is comedi_parport. This
works fine under both RTlinux and RTAI.  But I have tried a daqboard2000
and a national instruments (using the ni_pcimio driver), and they both give 
the same results: Under RTLinux, the kernel crashes when you try to configure 
them with comedi_config;  Under RTAI there's no crash, but the cards simply 
do nothing.

I've successfully written non-realtime programs using these cards so 
I'm confident the hardware is ok.  What special steps do I have to take to get
them to work in real time under RTAI or RTLinux ??

Received on 2004-05-18Z01:50:57