From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mtiwmhc13.worldnet.att.net ([204.127.131.117]:48270 "EHLO mtiwmhc13.worldnet.att.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750919AbZAZBhO (ORCPT ); Sun, 25 Jan 2009 20:37:14 -0500 Message-ID: <497D13B8.5090308@lwfinger.net> (sfid-20090126_023723_719139_85EFD328) Date: Sun, 25 Jan 2009 19:36:56 -0600 From: Larry Finger MIME-Version: 1.0 To: Hauke Mehrtens CC: "John W. Linville" , Herton Ronaldo Krzesinski , Hin-Tak Leung , barreyromartin@gmail.com, linux-wireless@vger.kernel.org Subject: [RFT] rtl8187: Fix OFDM power settings for RTL8187L References: <49790961.JdcKIZyYlMNFSiuO%Larry.Finger@lwfinger.net> <4979DD39.9000601@hauke-m.de> <20090123153144.GA13658@tuxdriver.com> <497B05AF.5050701@hauke-m.de> In-Reply-To: <497B05AF.5050701@hauke-m.de> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hauke, Please apply this patch on top of current wireless-testing, or compat-wireless. Larry ==================== 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. Signed-off-by: Larry Finger --- 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 @@ -536,7 +536,10 @@ 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);