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authorSaravana <saravanad@posedge.com>2012-11-29 19:54:19 +0530
committerJohannes Berg <johannes.berg@intel.com>2012-11-29 15:33:06 +0100
commit1f2e651c9aa4be5ace193b6a8f48e4b068a60207 (patch)
treef6e354bf381244ffbaa3a20e570851dd43585f1d /net/mac80211
parent003e676af5044c2168dafbb49c7b8d61dd68cc60 (diff)
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mac80211: add debugfs file for last rx rate
Add a debugfs file showing the rate at which the last packet is received. Signed-off-by: Saravana <saravanad@posedge.com> [fix whitespace] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/debugfs_sta.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index b6fd9f6ed80c..49a1c70bbd70 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -337,6 +337,23 @@ static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf,
}
STA_OPS(current_tx_rate);
+static ssize_t sta_last_rx_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_rx(sta, &rinfo);
+
+ rate = cfg80211_calculate_bitrate(&rinfo);
+
+ return mac80211_format_buffer(userbuf, count, ppos,
+ "%d.%d MBit/s\n",
+ rate/10, rate%10);
+}
+STA_OPS(last_rx_rate);
+
#define DEBUGFS_ADD(name) \
debugfs_create_file(#name, 0400, \
sta->debugfs.dir, sta, &sta_ ##name## _ops);
@@ -387,6 +404,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
DEBUGFS_ADD(ht_capa);
DEBUGFS_ADD(last_ack_signal);
DEBUGFS_ADD(current_tx_rate);
+ DEBUGFS_ADD(last_rx_rate);
DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);