gpio_add_raw_irq_handler_with_order_priority() function

Adds a raw GPIO IRQ handler for a specific GPIO on the current core In addition to the default mechanism of a single GPIO IRQ event callback per core (see gpio_set_irq_callback), it is possible to add explicit GPIO IRQ handlers which are called independent of the default callback. The order relative to the default callback can be controlled via the order_priority parameter(the default callback has the priority GPIO_IRQ_CALLBACK_ORDER_PRIORITY which defaults to the lowest priority with the intention of it running last). This method adds such a callback, and disables the "default" callback for the specified GPIO. A raw handler should check for whichever GPIOs and events it handles, and acknowledge them itself; it might look something like: \code{.c} void my_irq_handler(void) { if (gpio_get_irq_event_mask(my_gpio_num) & my_gpio_event_mask) { gpio_acknowledge_irq(my_gpio_num, my_gpio_event_mask); // handle the IRQ } } \endcode