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authorZhu Yi <yi.zhu@intel.com>2006-08-21 11:37:01 +0800
committerJohn W. Linville <linville@tuxdriver.com>2006-08-29 17:06:31 -0400
commitc580f67fd7fa9deee1f4cf6b86c694b880534a82 (patch)
treeb2ff842c56d9746a56d1fb51d70d8521c9ae1598
parent01d478338ff3eff3bade043495f0fc9e57568876 (diff)
downloadblackbird-op-linux-c580f67fd7fa9deee1f4cf6b86c694b880534a82.tar.gz
blackbird-op-linux-c580f67fd7fa9deee1f4cf6b86c694b880534a82.zip
[PATCH] ipw2200: SIOCGIWFREQ ioctl returns frequency rather than channel
The SIOCGIWFREQ ioctl fills the request structure's freq field by setting the exponent to 0 and the mantissa to the current channel number. The iwconfig tool works around this behaviour by looking up the frequency from the channel table if a frequency below 1kHz is returned, other tools (e.g. kwlaninfo) don't. According to the comment in the iwconfig source the driver is supposed to return the frequency, not the channel number. Signed-off-by: Ingo van Lil <inguin@gmx.de> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ipw2200.c23
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c
index 89e076fa1039..0b2c774f5ee7 100644
--- a/drivers/net/wireless/ipw2200.c
+++ b/drivers/net/wireless/ipw2200.c
@@ -8562,9 +8562,26 @@ static int ipw_wx_get_freq(struct net_device *dev,
* configured CHANNEL then return that; otherwise return ANY */
mutex_lock(&priv->mutex);
if (priv->config & CFG_STATIC_CHANNEL ||
- priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED))
- wrqu->freq.m = priv->channel;
- else
+ priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) {
+ int i;
+
+ i = ieee80211_channel_to_index(priv->ieee, priv->channel);
+ BUG_ON(i == -1);
+ wrqu->freq.e = 1;
+
+ switch (ieee80211_is_valid_channel(priv->ieee, priv->channel)) {
+ case IEEE80211_52GHZ_BAND:
+ wrqu->freq.m = priv->ieee->geo.a[i].freq * 100000;
+ break;
+
+ case IEEE80211_24GHZ_BAND:
+ wrqu->freq.m = priv->ieee->geo.bg[i].freq * 100000;
+ break;
+
+ default:
+ BUG();
+ }
+ } else
wrqu->freq.m = 0;
mutex_unlock(&priv->mutex);
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