On Mon, May 28, 2012 at 2:57 AM, richard -rw- weinberger <[email protected]> wrote: > On Sun, May 27, 2012 at 2:02 AM, Mark Farnell <[email protected]> wrote: >> In the kernel, how can I find out the interrupt vector number of a >> given IRQ (for example, IRQ7)? >> >> Within the kernel module, I would like to manually set the IRQ using >> the assembly code: >> >> asm("int $<irq vector>"); >> >> and let the IRQ handler installed by a different module catch that interrupt. >> >> Is this possible? > > No really because not all IRQ have an interrupt line to the CPU. > Linux can multiplex and emulate them. Think of GPIO drivers with > interrupt support. Can you please describe this in detail?It would really help a lot of people like me.Does multiplex mean that all numbers starting from 0,1,2,3,...... TOTAL-interrupt will have interrupt lines associated with it eventhough all interrupt numbers are not linear? > Anyway, why to you think you need to trigger the raw IRQ manually? > This sounds really odd... > > > -- > Thanks, > //richard > > _______________________________________________ > Kernelnewbies mailing list > [email protected] > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
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