Re: [Xenomai-help] Handling a interrupt from user space on PPC405

[Heikki Lindholm <holindho@domain.hid>]

Niklaus Giger kirjoitti:
> Hi
> 
> I tried to use the FIT (Fixed Interrupt Timer) on my PPC405GPr board, which 
> uses 0x1010 as its interrupt vector in a user space (vxworks-skin) 
> application.
> <..>
>   RT_INTR FITnterrupt;
>   res = rt_intr_create(&FITnterrupt, 0, 0x1010, I_NOAUTOENA);
> <..>
> But I got -22 EINVAL as error.
> Could somebody please tell me, what is wrong with my example.

The 0x1010 is the HW interrupt vector, but the argument should be the 
interrupt _line_. Besides, last time I checked, the ppc405 FIT isn't 
even 'wired' in the kernel; actually, there's no space for the interrupt 
prologue code, which basically results that no handler is called when 
the FIT interrupt occurs.

-- Heikki Lindholm