37 lines
1.2 KiB
Diff
37 lines
1.2 KiB
Diff
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Mon, 31 Aug 2015 22:59:38 +0200
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Subject: [PATCH] nl80211: put current TX power in interface info
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Many drivers implement reading current TX power (using either cfg80211
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or ieee80211 op) but userspace can't get it using nl80211. Right now the
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only way to access it is to call some wext ioctl.
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Let's put TX power in interface info reply (callback is wdev specific)
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just like we do with current channel.
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To be consistent (e.g. NL80211_CMD_SET_WIPHY) let's use mBm as na unit.
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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---
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--- a/net/wireless/nl80211.c
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+++ b/net/wireless/nl80211.c
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@@ -2406,6 +2406,16 @@ static int nl80211_send_iface(struct sk_
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}
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}
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+ if (rdev->ops->get_tx_power) {
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+ int dbm, ret;
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+
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+ ret = rdev_get_tx_power(rdev, wdev, &dbm);
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+ if (ret == 0 &&
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+ nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
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+ DBM_TO_MBM(dbm)))
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+ goto nla_put_failure;
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+ }
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+
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if (wdev->ssid_len) {
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if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
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goto nla_put_failure;
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