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authorBenoit Papillault <benoit.papillault@free.fr>2010-02-04 22:00:20 +0100
committerJohn W. Linville <linville@tuxdriver.com>2010-02-08 22:50:57 +0100
commit199d69f27326858b16449eb1cc1623299db64415 (patch)
tree3bfa43e22a63518ba3fd2eef2885c58404257e7f
parentlibertas: don't retry commands (diff)
downloadlinux-199d69f27326858b16449eb1cc1623299db64415.tar.xz
linux-199d69f27326858b16449eb1cc1623299db64415.zip
mac80211: Added a new debugfs file for reading channel_type
This file helps debugging HT channels since it displays if we are on ht20 or ht40+/ht40- Signed-off-by: Benoit Papillault <benoit.papillault@free.fr> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--net/mac80211/debugfs.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index b3bc32b62a5a..637929b65ccc 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -250,6 +250,38 @@ static const struct file_operations uapsd_max_sp_len_ops = {
.open = mac80211_open_file_generic
};
+static ssize_t channel_type_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ const char *buf;
+
+ switch (local->hw.conf.channel_type) {
+ case NL80211_CHAN_NO_HT:
+ buf = "no ht\n";
+ break;
+ case NL80211_CHAN_HT20:
+ buf = "ht20\n";
+ break;
+ case NL80211_CHAN_HT40MINUS:
+ buf = "ht40-\n";
+ break;
+ case NL80211_CHAN_HT40PLUS:
+ buf = "ht40+\n";
+ break;
+ default:
+ buf = "???";
+ break;
+ }
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
+}
+
+static const struct file_operations channel_type_ops = {
+ .read = channel_type_read,
+ .open = mac80211_open_file_generic
+};
+
static ssize_t queues_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
@@ -408,6 +440,7 @@ void debugfs_hw_add(struct ieee80211_local *local)
DEBUGFS_ADD(noack);
DEBUGFS_ADD(uapsd_queues);
DEBUGFS_ADD(uapsd_max_sp_len);
+ DEBUGFS_ADD(channel_type);
statsd = debugfs_create_dir("statistics", phyd);