Hello
I try to register an interrupt handler for an externel interrupt(GPIO
105) in a xenomai (2.2.2) kernel module on a ARM processor (PXA 270).
I create a interrupt object with the rt_intr_create() function without
an error. After that I enable the interrupt with rt_intr_enable(). When
I run the kernel module on the PXA270 board and put a square signal to
the GPIO 105 pin the interrupt handler is never called.
// Interrupt Handler
int int_handler(struct xnintr *intr)
{
printk("Interrupt detected\n");
return RT_INTR_HANDLED;
}
----
// Enalbe Interrupt in init_module()
err = rt_intr_create(&intr_desc, "GPIO_INT", 10, &int_handler, NULL, NULL);
rt_intr_enable(&intr_desc);
On PXA270 all externel interrupts on GPIO's have the same interrupt
number (10). Is that a problem? When I get the pin status from the pin
level register GPLR3 I can detect the square signal at the pin. But the
interrupt handler function int_handler() is never called.
Is there any other initialization that I had to do?
Kind Regards
Niklaus Burren
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