Hello, Thanks. If the timer you are talking about is not an interrupt driven timer than it is not suitable; or if it uses the usual linux timer interrupt than it is not suitable because this timer interrupt occurs many times in a second. My aim is to write a simple module which generate single interrupts which can be generated from user space or by some hw (like a keyboard sequence). For what is this good ? I want to use it as a tool for tracing the interrupt mechanism of Xen , which is a bit different than the ordinary one on Linux. Since I don't want to add printk messages in a way which will bloat and cause the kernel hang, I want to use a driver like this. Generating single interrupts upon some predefined action will help me a lot; and also this explains (I hope) why I do not want to use timer (or other device which causes a lot of interrupts per second): timer interrupts frequency is too high. I will gladly answer any other questions regarding this. John On 7/26/05, Thomas Petazzoni <thomas.petazzoni@xxxxxxxx> wrote: > Hello, > > John Que wrote: > > > If there is a way to do such a thing : to register a device interreupt > > (in the range 1-16), so that a use space program (like ioctl , or cat > > /dev/mymodle , etc.) will > > generate such interrupt ? ( Or let's say pressing some keyboard combinatiion ?) > > Can you be more precise about the condition under which your interrupt > handler should be called ? > > I have the feeling that what you need is not an interrupt handler per-se > but rather a timer. But give more details first. > > Sincerly, > > Thomas > -- > Thomas Petazzoni > thomas.petazzoni@xxxxxxxx > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
