Return-path: Received: from mail022-1.exch022.serverdata.net ([64.78.22.98]:55468 "EHLO mail022-1.exch022.serverdata.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754526Ab2KZNWE (ORCPT ); Mon, 26 Nov 2012 08:22:04 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Date: Mon, 26 Nov 2012 05:22:03 -0800 From: saravanad@posedge.com To: Cc: Subject: [RFC] mac80211: add debugfs file for current tx rate Message-ID: <3cce329ee6381f0ab4dd4d86ea76c2da@posedge.com> (sfid-20121126_142208_666910_D91EB2C4) 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 --- The diff file is generated from wireless-testing git tree. net/mac80211/debugfs_sta.c | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-) diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index 89281d2..85d2279 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -321,6 +321,21 @@ 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 +384,7 @@ 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);