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iwlwifi: adding channels to sysfs 

This patch returns channel list to sysfs.

Signed-off-by: Ester Kummer <ester.kummer@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ester Kummer 2008-06-13 15:44:53 +08:00 committed by John W. Linville
parent dc0ae30c31
commit 5d72a1f5b6
1 changed files with 56 additions and 2 deletions
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58
drivers/net/wireless/iwlwifi/iwl4965-base.c
View File

@ -4122,8 +4122,62 @@ static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
static ssize_t show_channels(struct device *d,
struct device_attribute *attr, char *buf)
{
/* all this shit doesn't belong into sysfs anyway */
return 0;
struct iwl_priv *priv = dev_get_drvdata(d);
struct ieee80211_channel *channels = NULL;
const struct ieee80211_supported_band *supp_band = NULL;
int len = 0, i;
int count = 0;
if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
return -EAGAIN;
supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
channels = supp_band->channels;
count = supp_band->n_channels;
len += sprintf(&buf[len],
"Displaying %d channels in 2.4GHz band "
"(802.11bg):\n", count);
for (i = 0; i < count; i++)
len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
ieee80211_frequency_to_channel(
channels[i].center_freq),
channels[i].max_power,
channels[i].flags & IEEE80211_CHAN_RADAR ?
" (IEEE 802.11h required)" : "",
(!(channels[i].flags & IEEE80211_CHAN_NO_IBSS)
|| (channels[i].flags &
IEEE80211_CHAN_RADAR)) ? "" :
", IBSS",
channels[i].flags &
IEEE80211_CHAN_PASSIVE_SCAN ?
"passive only" : "active/passive");
supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
channels = supp_band->channels;
count = supp_band->n_channels;
len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band "
"(802.11a):\n", count);
for (i = 0; i < count; i++)
len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
ieee80211_frequency_to_channel(
channels[i].center_freq),
channels[i].max_power,
channels[i].flags & IEEE80211_CHAN_RADAR ?
" (IEEE 802.11h required)" : "",
((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
|| (channels[i].flags &
IEEE80211_CHAN_RADAR)) ? "" :
", IBSS",
channels[i].flags &
IEEE80211_CHAN_PASSIVE_SCAN ?
"passive only" : "active/passive");
return len;
}
static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);