Function esp_openthread_rcp_version_set 

pub unsafe extern "C" fn esp_openthread_rcp_version_set(
    version_str: *const c_char,
) -> esp_err_t

@brief Set the RCP version string.

@note This function should be called before esp_openthread_init. When the RCP version string is not an empty string, compatibility checks will be performed during the initialization of the ESP OpenThread radio spinel. The esp_openthread_compatibility_error_callback will be triggered if the desired RCP version does not match the actual version running on the RCP. If needed, a NULL parameter can be passed to clear the version string.

@param[in] version_str The pointer to RCP version string.

@return - ESP_OK on success - ESP_FAIL if fail to set RCP version string