REG_PRECNT_CTRL
rtw_write8(rtwdev, REG_PRECNT_CTRL, (u8)(pre_txcnt & 0xFF));
rtw_write8(rtwdev, REG_PRECNT_CTRL + 1, (u8)(pre_txcnt >> 8));
rtw_write8(rtwdev, REG_PRECNT_CTRL, (u8)(pre_txcnt & 0xFF));
rtw_write8(rtwdev, REG_PRECNT_CTRL + 1, (u8)(pre_txcnt >> 8));