Function esp_idf_svc::sys::gpio_new_etm_task

source ·
pub unsafe extern "C" fn gpio_new_etm_task(
    config: *const gpio_etm_task_config_t,
    ret_task: *mut *mut esp_etm_task_t,
    ...
) -> i32
Expand description

@brief Create an ETM task object for the GPIO peripheral

@note The created ETM task object can be deleted later by calling esp_etm_del_task @note The GPIO ETM task works like a container, a newly created ETM task object doesn’t have GPIO members to be managed. You need to call gpio_etm_task_add_gpio to put one or more GPIOs to the container. @note Every success call to this function will acquire a free GPIO ETM task channel

@param[in] config GPIO ETM task configuration @param[out] ret_task Returned ETM task handle @param[out] … Other returned ETM task handles if any (the order of the returned task handles is aligned with the array order in field actions in gpio_etm_task_config_t) @return - ESP_OK: Create ETM task successfully - ESP_ERR_INVALID_ARG: Create ETM task failed because of invalid argument - ESP_ERR_NO_MEM: Create ETM task failed because of out of memory - ESP_ERR_NOT_FOUND: Create ETM task failed because all tasks are used up and no more free one - ESP_FAIL: Create ETM task failed because of other reasons