Return-path: Received: from mail022-1.exch022.serverdata.net ([64.78.22.98]:37846 "EHLO mail022-1.exch022.serverdata.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754674Ab2K1NXh (ORCPT ); Wed, 28 Nov 2012 08:23:37 -0500 Message-ID: <50B61054.3090604@posedge.com> (sfid-20121128_142340_682764_9F204D1A) Date: Wed, 28 Nov 2012 18:53:32 +0530 From: Saravana MIME-Version: 1.0 To: Johannes Berg CC: linux-wireless@vger.kernel.org Subject: [PATCH] mac80211: add debugfs file for current tx rate Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: Add a debugfs file showing the current tx rate. The information available in the rc_stats file doesn't evidently provides us the current tx rate. This patch adds the support for the same. Signed-off-by: Saravana --- net/mac80211/debugfs_sta.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index 89281d2..b10ae46 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -321,6 +321,20 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, } STA_OPS(ht_capa); +static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct sta_info *sta = file->private_data; + struct rate_info rinfo; + u16 rate; + sta_set_rate_info_tx(sta, &sta->last_tx_rate, &rinfo); + rate = cfg80211_calculate_bitrate(&rinfo); + + return mac80211_format_buffer(userbuf, count, ppos, "%d.%d MBit/s\n", + rate/10, rate%10); +} +STA_OPS(current_tx_rate); + #define DEBUGFS_ADD(name) \ debugfs_create_file(#name, 0400, \ sta->debugfs.dir, sta, &sta_ ##name## _ops); @@ -369,6 +383,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta) DEBUGFS_ADD(dev); DEBUGFS_ADD(last_signal); DEBUGFS_ADD(ht_capa); + DEBUGFS_ADD(current_tx_rate); DEBUGFS_ADD_COUNTER(rx_packets, rx_packets); DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);