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iwlwifi: indicate txpower is off in sysfs 

The patch checks if the radio is disabled before displaying the tx power
level. Previously when the txpower was set off show_tx_power still
returned the prior power level. Now it will indicate the power has been
turned off.

Signed-off-by: Jay Sternberg <jay.e.sternberg@linux.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:
Jay Sternberg 2008-12-17 16:52:34 +08:00 committed by John W. Linville
parent f1bc4ac61f
commit 91f39e8eea
1 changed files with 5 additions and 1 deletions
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6
drivers/net/wireless/iwlwifi/iwl-agn.c
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@ -3418,7 +3418,11 @@ static ssize_t show_tx_power(struct device *d,
struct device_attribute *attr, char *buf) struct device_attribute *attr, char *buf)
{ {
struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
if (!iwl_is_ready_rf(priv))
return sprintf(buf, "off\n");
else
return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
} }
static ssize_t store_tx_power(struct device *d, static ssize_t store_tx_power(struct device *d,