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cpu/sam0_common: gpio: warn if EXTI line is re-used

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This commit is contained in:
Benjamin Valentin 2023-09-04 15:43:06 +02:00
parent f1df27b381
commit 4ebf58d47a
1 changed files with 4 additions and 0 deletions
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4
cpu/sam0_common/periph/gpio.c
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@ -333,6 +333,10 @@ int gpio_init_int(gpio_t pin, gpio_mode_t mode, gpio_flank_t flank,
return -1;
}
if (gpio_config[exti].cb) {
DEBUG("gpio: Warning - interrupt line %u already in use\n", exti);
}
/* save callback */
gpio_config[exti].cb = cb;
gpio_config[exti].arg = arg;