REG_ARFR4
wlk = !!(rtw_read8(rtwdev, REG_ARFR4) & BIT_WL_RFK);
{REG_ARFR4, MASKDWORD, "SP"},
rtwdev, REG_ARFR4, BIT_WL_RFK);
rtwdev, REG_ARFR4,
rtw_write32(rtwdev, REG_ARFR4, WLAN_RTS_RATE_FB_RATE4);