Function lv_circle_buf_write 

pub unsafe extern "C" fn lv_circle_buf_write(
    circle_buf: *mut lv_circle_buf_t,
    data: *const c_void,
) -> lv_result_t

Write a value @param circle_buf pointer to buffer @param data pointer to the value to write @return LV_RESULT_OK: the value is written; LV_RESULT_INVALID: the value is not written