RTWN_BULK_TX_BE
rtwn_config[RTWN_BULK_TX_BE].endpoint = addr[2];
uc->wme2qid[WME_AC_BE] = RTWN_BULK_TX_BE;
uc->wme2qid[WME_AC_BK] = RTWN_BULK_TX_BE;
rtwn_config[RTWN_BULK_TX_BE].endpoint = addr[1];
rtwn_config[RTWN_BULK_TX_BE].endpoint = addr[0];
[RTWN_BULK_TX_BE] = {
rtwn_bulk_tx_callback_qid(xfer, error, RTWN_BULK_TX_BE);
#define RTWN_BULK_TX_FIRST RTWN_BULK_TX_BE