On Fri, 17 Sep 1999, Wojciech Zabolotny wrote: > > > Is it possible to make a part of my program a "critical section", so that > > > during execution of this part of code my program can not be suspended? > > > I'd like to be able to send a data through the serial port at the known > > time,
Jumping in late... Linux is faster than your serial port is. Unless you are using a very slow (386) computer you will not have trouble with that. Do you really need the signal sent out the serial port at *precisely* such a time or do you need to just guarantee that you don't miss things. If you need that precision you probably have to use RT/Linux. Otherwise you shouldnt have trouble. > I agree, but what about the root's processes? Root or not root, it's all the same for this. You need a kernel module for non preemptable code.
