Guennadi Liakhovetski wrote:
>
> On Mon, 17 Dec 2001, John Levon wrote:
>
> > > What is the meaning of the typename field in struct hw_interrupt_type in
> > > irq.h and what values it can take?
> >
> > it is the name of the interrupt handler installed for that IRQ and
> > is printed out in /proc/interrupts
>
> Ok, thanks, now I'll have to find out what the following 2 lines
>
> if (IRQ_DESC[i].handler->typename[0] == 'I') {
> ...
> } else if (IRQ_DESC[i].handler->typename[0] == 'X') {
> ...
>
> are checking for, i.e. which 2 ISR names begin with 'I' and 'X'...
>
Ask the writer of the code. Do "cat /proc/interrupts" on an SMP machine
and you'll discover that 'I' is the first character of IO-APIC and 'X'
of XT-PIC.
Paolo.
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