RMC_COMM_DREQ_ST_WAIT
if (dis->dreq_state == RMC_COMM_DREQ_ST_WAIT) {
dis->dreq_state = RMC_COMM_DREQ_ST_WAIT;
while (dis->dreq_state == RMC_COMM_DREQ_ST_WAIT) {
dis->dreq_state = RMC_COMM_DREQ_ST_WAIT;