After reports of poor performance, a review of the latest vendor driver (rtl8187_linux_26.1025.0328.2007) for RTL8187L devices was undertaken. A difference was found in the code used to index the OFDM power tables. When the Linux driver was changed, my unit works at a much greater range than before. I think this fixes Bugzilla #12380 and has been tested by at least two other users. Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx> Tested-by: Martín Ernesto Barreyro <barreyromartin@xxxxxxxxx> Cc: Stable <stable@xxxxxxxxxx> --- John, This material should be included in 2.6.29. Although I have Cc'd stable, the patch will need to be respun due to the file renaming. Larry --- Index: wireless-testing/drivers/net/wireless/rtl818x/rtl8187_rtl8225.c =================================================================== --- wireless-testing.orig/drivers/net/wireless/rtl818x/rtl8187_rtl8225.c +++ wireless-testing/drivers/net/wireless/rtl818x/rtl8187_rtl8225.c @@ -285,7 +285,10 @@ static void rtl8225_rf_set_tx_power(stru ofdm_power = priv->channels[channel - 1].hw_value >> 4; cck_power = min(cck_power, (u8)11); - ofdm_power = min(ofdm_power, (u8)35); + if (ofdm_power > (u8)15) + ofdm_power = 25; + else + ofdm_power += 10; rtl818x_iowrite8(priv, &priv->map->TX_GAIN_CCK, rtl8225_tx_gain_cck_ofdm[cck_power / 6] >> 1); @@ -536,7 +539,10 @@ static void rtl8225z2_rf_set_tx_power(st cck_power += priv->txpwr_base & 0xF; cck_power = min(cck_power, (u8)35); - ofdm_power = min(ofdm_power, (u8)15); + if (ofdm_power > (u8)15) + ofdm_power = 25; + else + ofdm_power += 10; ofdm_power += priv->txpwr_base >> 4; ofdm_power = min(ofdm_power, (u8)35); -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
