GET_RX_CHANNEL_INFO
remote_state = GET_RX_CHANNEL_INFO(channel, state);
remote_state = GET_RX_CHANNEL_INFO(channel, state);
head = GET_RX_CHANNEL_INFO(channel, head);
tail = GET_RX_CHANNEL_INFO(channel, tail);
tail = GET_RX_CHANNEL_INFO(channel, tail);
tail = GET_RX_CHANNEL_INFO(channel, tail);
tail = GET_RX_CHANNEL_INFO(channel, tail);
remote_state = GET_RX_CHANNEL_INFO(channel, state);