Return-path: Received: from smtp1-g21.free.fr ([212.27.42.1]:52628 "EHLO smtp1-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933016Ab0BDVxb (ORCPT ); Thu, 4 Feb 2010 16:53:31 -0500 From: Benoit Papillault To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, Benoit Papillault Subject: [PATCH] mac80211: Added a new debugfs file for reading channel_type Date: Thu, 4 Feb 2010 22:00:20 +0100 Message-Id: <1265317220-13504-1-git-send-email-benoit.papillault@free.fr> Sender: linux-wireless-owner@vger.kernel.org List-ID: This file helps debugging HT channels since it displays if we are on ht20 or ht40+/ht40- Signed-off-by: Benoit Papillault --- net/mac80211/debugfs.c | 33 +++++++++++++++++++++++++++++++++ 1 files changed, 33 insertions(+), 0 deletions(-) diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index b3bc32b..637929b 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); -- 1.6.3.3