Return-path: Received: from mail022-1.exch022.serverdata.net ([64.78.22.98]:55896 "EHLO mail022-1.exch022.serverdata.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753039Ab2K2Nwm (ORCPT ); Thu, 29 Nov 2012 08:52:42 -0500 Message-ID: <50B768A5.1040701@posedge.com> (sfid-20121129_145245_070820_F092E5EB) Date: Thu, 29 Nov 2012 19:22:37 +0530 From: Saravana MIME-Version: 1.0 To: Johannes Berg CC: linux-wireless@vger.kernel.org Subject: [PATCH v2] 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 1566941..1090c24 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -322,6 +322,20 @@ 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); @@ -371,6 +385,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta) DEBUGFS_ADD(last_signal); DEBUGFS_ADD(ht_capa); DEBUGFS_ADD(last_ack_signal); + DEBUGFS_ADD(current_tx_rate); DEBUGFS_ADD_COUNTER(rx_packets, rx_packets); DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);