On Mon, Apr 10, 2000 at 02:24:49PM +0200, Roland Lang wrote:
> Hi.
>
> I have setup a ISR on the 8254 Timer Hardware Interrupt 0.
> I am not using the scheduler. I need to program a detection
> mechanism whether the ISR is again called before the last one has
> terminated. I need to do this because of a compatibility to
> another system. But it seems the HW Interrupts are turned off
> while the ISR is running so that this detection doesn't work.
>
> My Question: How can I generate a reentrant ISR using RTL2.2?
You must use
rtl_hard_enable_irq(0); /* on intel boards, re-enables on 8259*/
rtl_allow_interrupts(); /* does a hard sti */
>
> Thanks for any help.
> Kind regards, Roland.
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