On Mon, Oct 02, 2000 at 09:14:38PM +0100, christophe.menival wrote:
> 1/ As i use request_RTirq(7,...) in RTL V1.2, is irq 7 always available
> to Linux or should i wait for free_RTirq(7) before linux could manage it ?
> The problem is not on irq=7, but on the ability of sharing an irq number
> between Linux and Rt-Linux at the same time.
If there is a RTL driver installed, you must pend the interrupt for Linux in order
to run the linux driver.
>
> 2/ About interrupt emulation, in the same document, i read two sentences
> that seems to me to be opposite: "All hardware interrupts are caught by the
> emulator" and "...real-time interrupts that do not pass through the
> emulator". Who could help me to understand these both sentences ?
Poor wording. All hardware interrupts are caught by RTL low level intercept code.
RT interrupts do not pass though the emulator that Linux sees.
>
> Thanx.
>
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