Commit 199d69f2 authored by Benoit Papillault's avatar Benoit Papillault Committed by John W. Linville
Browse files

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: default avatarBenoit Papillault <benoit.papillault@free.fr>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 40e6fa82

net/mac80211/debugfs.c

+33 −0
Original line number Diff line number Diff line
@@ -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);