- From: Calin A. Culianu <calin_at_ajvar.org>
- Date: Tue, 24 Jan 2006 00:21:53 -0500 (EST)
Well regular RT tasks run with interrupts enabled anyway. They just pend linux interrupts until the RT system is idle. The small RTLinux and real-time ISRs always get to run, even in RTLinux, RTAi, etc. Not sure I agree with that design but that's the way it works. At least that's my understanding. Am I wrong? -Calin On Mon, 23 Jan 2006, Frank Mori Hess wrote: > On Sunday 22 January 2006 12:52 pm, Calin A. Culianu wrote: >> However, I am not sure why that decision was made. It normally is >> possible to share linux interrupts with RT interrupts if the drivers are >> written in such a way so as to support pending the interrupt to linux >> when it is not for them. I just assume it's because the comedi drivers >> don't support this pending feature. > > And it's a pretty worthless feature. The interrupt isn't RT at all if it > drops out of RT every time the other device generates an interrupt. > > -- > Frank > >
Received on 2006-01-24Z05:21:53