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In kernel source where can I find the code which actually
identifies the IRQ number by reading the APIC mask and status registers. I am actually tracking the Interrupt handling code (from
lowest level to higher level) of kernel, just for learning, can somebody help. Also if someone knows about some good low level online article
or tutorials on Interrupt handling in Linux kernel, please do send me the link
to it. I have been reading the LDD2 (Rubini’s book), but that book talks
till a particular level. It tells you about some specific functions in Kernel
using which you can request, register or handle interrupts for your device, but
it does not talk in deep about interrupt handling mechanism at the lowest level
of kernel. Also please do let me know current Rubini’s mail id,
as I think he can clear lot of doubts about interrupts. Regards, Gaurav |
