GPIO interrupts on Carambola2

[Sebastian Zietz]

Hi all,

since I am not much into device driver programming jet I hope you can help me with my problem. I have a hardware button on GPIO pin 22 and can’t generate interrupts on it. In sys/mips/atheros/ar71xx_gpio.c I’d like to do something like:

331 static void
332 ar71xx_gpio_intr(void *arg)
333 {
334         struct ar71xx_gpio_softc *sc = arg;
335         GPIO_LOCK(sc);
336         /* TODO: something useful */
337         devctl_notify("GPIO", "pin22", "notify", NULL);
338         GPIO_UNLOCK(sc);
339 }


To get it working I tried this without success:

410         /* Configure all pins as input */
411         /* disable interrupts for all pins */
412         GPIO_WRITE(sc, AR71XX_GPIO_INT_MASK, 0);
413         GPIO_WRITE(sc, AR71XX_GPIO_INT_MASK, (1 << 22));


I didn’t managed to come up with pin 22 as input either. I am thankful for any help!