Interrupt checking in QNX

Jagat · February 21, 2011, 9:53am

Hi,

is there any way to check the interrupts generated in QNX 6.5(like /proc/interrupts in linux) ?

mario · February 21, 2011, 2:50pm

Maybe you can be more explicit and don’t assume everybody here know about linux ;-)

maschoen · February 21, 2011, 7:37pm

What does check the interrupts generated mean? If you want a count of interrupts, it’s a very easy program to attach an interrupt handler to all of them and keep a count. You could access that count via a device using the resource manager structure. This occurs at the expense of overhead, which is fairly small unless you have a very fast interrupt.

Jagat · February 22, 2011, 4:06am

As I am porting a driver from linux to QNX , I have mentioned about linux.

maschoen · February 22, 2011, 5:23am

Ah ha! I think he is asking how to detect that an interrupt has occurred in QNX. So you have some choices. You can write your own interrupt handler and attach it, or you can have a thread that waits for an interrupt to occur.