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raedbenz

07-29-2008 08:38 AM

timer driver error!

HI .
i am tying to build this module that generates periodic interrupts from a ARM's timer 2.
i defined interrupt like that:

Code:

request_irq(IRQ_EP93XX_TIMER2, interrupt_tick_update, 0,"t2int",NULL);

http://lxr.linux.no/linux/include/as...-ep93xx/irqs.h. the "device name "t2int" i selected it randomly.
here is what i get:

Code:

error: implicit declaration of function 'request_irq'

and

Code:

error: implicit declaration of function 'free_irq'

any hints?
thanks

ra2008

07-29-2008 02:37 PM

try to check if u had added the correct header file
<linux/interrupt.h>

cheers

raedbenz

07-29-2008 04:31 PM

yea thats worked.
but now, i defined interrupt like that:

Code:

request_irq( IRQ_EP93XX_TIMER2, interrupt_tick_update, 0,"t2int",NULL);

and the handler is :

Quote:

irqreturn_t interrupt_tick_update(int irq, void *dev_id, struct pt_regs *regs)
{
Tick_count_G++;
printk(<1>"Tick count %d" Tick_count_G++);
return IRQ_HANDLED ;
}

and i get this when i compile:

Quote:

warning: passing argument 2 of 'request_irq' from incompatible pointer type

any hints?
thanks

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