Yes, I removed the flag (0) and nothing change in both cases the request_irq
return 0 which is good.
Then I added enable_irq and I recived :
Unbalanced enable for IRQ 74
------------[ cut here ]------------
Badness at c0043578 [verbose debug info unavailable]
Call Trace:
[C76C9D00] [C0008648] show_stack+0x48/0x194 (unreliable)
[C76C9D30] [C0139364] report_bug+0x84/0xac
[C76C9D40] [C000E398] program_check_exception+0xe0/0x538
[C76C9D80] [C000FE04] ret_from_except_full+0x0/0x4c
--- Exception: 700 at enable_irq+0x80/0xb0
LR = enable_irq+0x80/0xb0
[C76C9E50] [C907423C] CreateGPIOHandler+0x28/0x7c [modexample]
[C76C9E70] [C9074728] init_module+0x2c/0x8c [modexample]
[C76C9E80] [C003B568] sys_init_module+0x1c4/0x165c
[C76C9F40] [C000F7BC] ret_from_syscall+0x0/0x38
--- Exception: c01 at 0xff311f0
LR = 0x100316a8
By the way this is my code :
static irqreturn_t GPIOinterrupt_handler(int i,void *n,struct pt_regs *
myRegs)
{
printk("GPIO recived and handled !!!!!!!!!!!!!!!!!!!...\n");
return IRQ_HANDLED;
}
void CreateGPIOHandler()
{
unsigned int myirq=irq_create_mapping(NULL,74);
enable_irq(74);
printk("myirq is : %d \n",myirq);
int ret;
ret=- request_irq(74, GPIOinterrupt_handler,0, "GPIO", NULL);
printk("ret is : %d \n",ret);
}
-----Original Message-----
From: Scott Wood [mailto:[EMAIL PROTECTED]
Sent: Wednesday, August 01, 2007 9:36 PM
To: Yoni Levin
Cc: [email protected]
Subject: Re: GPIO interrupts on mpc8313e
On Wed, Aug 01, 2007 at 02:45:05PM +0300, Yoni Levin wrote:
> request_irq(74,handler,IRQF_DISABLED,"GPIO",NULL);
^^^^^^^^^^^^^
Did you try removing that flag (or calling enable_irq())?
-Scott
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