El Tue, May 20, 2008 at 10:48:42AM +0800 vichy ha dit:
> Usually we use request_irq to register our irq handler, but where is the
> entry point about kernel that receives HW's truly interrupt?
i suppose you are looking for this (in case of x86-32):
arch/x86/kernel/entry_32.S
common_interrupt:
SAVE_ALL
TRACE_IRQS_OFF
movl %esp,%eax
call do_IRQ
jmp ret_from_intr
ENDPROC(common_interrupt)
--
Matthias Kaehlcke
Embedded Linux Engineer
Barcelona
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