On Fri, Feb 20, 2009 at 08:27:54PM -0600, Lopez Cruz, Misael wrote:
> Hi,
> 
> I'm interested in bringing headset detection feature for audio. The detection 
> is done through TWL GPIO_2. How can I configure a GPIO pin to generate an 
> interrupt? Is there any API? Could you please point out another driver using 
> that functionality so I can use as reference?

gpio_request(GPIO_NUMBER, "Headset IRQ");
gpio_direction_input(GPIO_NUMBER);
request_irq(client->irq, lm8323_irq, flags | IRQF_SHARED, DRIVER_NAME, dev);

that should do it :-)

see that GPIO_NUMBER will be gpio_base + 2, base is board-specific

-- 
balbi
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