[PATCH] ipw2200: add channels sysfs entry
From: Zhu Yi <hidden>
Date: 2007-02-14 08:04:24
Also in:
linux-wireless
Add 'channels' sysfs entry for ipw2200. The entry exports channels information for the user space. Signed-off-by: Zhu Yi <redacted> -- diff -urp a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c
--- a/drivers/net/wireless/ipw2200.c 2007-02-05 17:40:23.000000000 +0800
+++ b/drivers/net/wireless/ipw2200.c 2007-02-14 15:44:56.000000000 +0800@@ -1847,6 +1847,52 @@ static ssize_t store_net_stats(struct de static DEVICE_ATTR(net_stats, S_IWUSR | S_IRUGO, 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) { union iwreq_data wrqu;
@@ -11383,6 +11383,7 @@ static struct attribute *ipw_sysfs_entri &dev_attr_led.attr, &dev_attr_speed_scan.attr, &dev_attr_net_stats.attr, + &dev_attr_channels.attr, #ifdef CONFIG_IPW2200_PROMISCUOUS &dev_attr_rtap_iface.attr, &dev_attr_rtap_filter.attr,