Function esp_idf_sys::ledc_fade_func_install

pub unsafe extern "C" fn ledc_fade_func_install(
    intr_alloc_flags: c_int
) -> esp_err_t

@brief Install LEDC fade function. This function will occupy interrupt of LEDC module. @param intr_alloc_flags Flags used to allocate the interrupt. One or multiple (ORred) ESP_INTR_FLAG_* values. See esp_intr_alloc.h for more info.

@return - ESP_OK Success - ESP_ERR_INVALID_STATE Fade function already installed.