IWM_RFH_Q0_URBDCB_WIDX
iwm_write_prph(sc, IWM_RFH_Q0_URBDCB_WIDX, 0);
#define IWM_RFH_Q_URBDCB_WIDX(q) (IWM_RFH_Q0_URBDCB_WIDX + (q) * 4)