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[PATCH] ipw2200: add channels sysfs entry

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Add 'channels' sysfs entry for ipw2200. The entry exports channels
information for the user space.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Zhu Yi 2007-02-14 16:04:24 +08:00 committed by Jeff Garzik
parent b9099ff63c
commit 375dd24428
1 changed files with 47 additions and 0 deletions
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47
drivers/net/wireless/ipw2200.c
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@ -1847,6 +1847,52 @@ static ssize_t store_net_stats(struct device *d, struct device_attribute *attr,
static DEVICE_ATTR(net_stats, S_IWUSR | S_IRUGO, static DEVICE_ATTR(net_stats, S_IWUSR | S_IRUGO,
show_net_stats, store_net_stats); show_net_stats, store_net_stats);
static ssize_t show_channels(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct ipw_priv *priv = dev_get_drvdata(d);
const struct ieee80211_geo *geo = ipw_get_geo(priv->ieee);
int len = 0, i;
len = sprintf(&buf[len],
"Displaying %d channels in 2.4Ghz band "
"(802.11bg):\n", geo->bg_channels);
for (i = 0; i < geo->bg_channels; i++) {
len += sprintf(&buf[len], "%d: BSS%s%s, %s, Band %s.\n",
geo->bg[i].channel,
geo->bg[i].flags & IEEE80211_CH_RADAR_DETECT ?
" (radar spectrum)" : "",
((geo->bg[i].flags & IEEE80211_CH_NO_IBSS) ||
(geo->bg[i].flags & IEEE80211_CH_RADAR_DETECT))
? "" : ", IBSS",
geo->bg[i].flags & IEEE80211_CH_PASSIVE_ONLY ?
"passive only" : "active/passive",
geo->bg[i].flags & IEEE80211_CH_B_ONLY ?
"B" : "B/G");
}
len += sprintf(&buf[len],
"Displaying %d channels in 5.2Ghz band "
"(802.11a):\n", geo->a_channels);
for (i = 0; i < geo->a_channels; i++) {
len += sprintf(&buf[len], "%d: BSS%s%s, %s.\n",
geo->a[i].channel,
geo->a[i].flags & IEEE80211_CH_RADAR_DETECT ?
" (radar spectrum)" : "",
((geo->a[i].flags & IEEE80211_CH_NO_IBSS) ||
(geo->a[i].flags & IEEE80211_CH_RADAR_DETECT))
? "" : ", IBSS",
geo->a[i].flags & IEEE80211_CH_PASSIVE_ONLY ?
"passive only" : "active/passive");
}
return len;
}
static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
static void notify_wx_assoc_event(struct ipw_priv *priv) static void notify_wx_assoc_event(struct ipw_priv *priv)
{ {
union iwreq_data wrqu; union iwreq_data wrqu;
@ -11383,6 +11429,7 @@ static struct attribute *ipw_sysfs_entries[] = {
&dev_attr_led.attr, &dev_attr_led.attr,
&dev_attr_speed_scan.attr, &dev_attr_speed_scan.attr,
&dev_attr_net_stats.attr, &dev_attr_net_stats.attr,
&dev_attr_channels.attr,
#ifdef CONFIG_IPW2200_PROMISCUOUS #ifdef CONFIG_IPW2200_PROMISCUOUS
&dev_attr_rtap_iface.attr, &dev_attr_rtap_iface.attr,
&dev_attr_rtap_filter.attr, &dev_attr_rtap_filter.attr,