Could a user space program be driven by hardware interrupts ? I'm looking of an efficient way to make my program (user space) react to some data written on the serial port by device. Otherwise... I'd maybe have to code my own driver that calls the other process by signals.
This is somewhat related to my previous (resolved) thread
http://www.linuxquestions.org/questi...d.php?t=547580 but this is another matter...