/* Generate NEC header value: active 9ms + negative 4.5ms.  */
static void nec_fill_item_header(rmt_item32_t *item)
/* Generate NEC header value: active 9ms + negative 4.5ms.  */
static void nec_fill_item_header(rmt_item32_t *item)
{
    nec_fill_item_level(item, NEC_HEADER_HIGH_US, NEC_HEADER_LOW_US);
}