Function gpio_init_callback

pub unsafe extern "C" fn gpio_init_callback(
    callback: *mut gpio_callback,
    handler: gpio_callback_handler_t,
    pin_mask: gpio_port_pins_t,
)

@brief Helper to initialize a struct gpio_callback properly @param callback A valid Application’s callback structure pointer. @param handler A valid handler function pointer. @param pin_mask A bit mask of relevant pins for the handler