REG_OFDM0_AGC_PARM1
rtl8xxxu_write8(priv, REG_OFDM0_AGC_PARM1 + 2, 0x50);
val32 = rtl8xxxu_read32(priv, REG_OFDM0_AGC_PARM1);
rtl8xxxu_write32(priv, REG_OFDM0_AGC_PARM1, val32);