Author: eadler
Date: Sat May 11 20:55:14 2013
New Revision: 250528
URL: http://svnweb.freebsd.org/changeset/base/250528
Log:
Teach wpa_supplicant to properly compute wireless signal strength.
PR: bin/170631
Submitted by: Daan Vreeken <d...@vitsch.nl>
Reviewed by: adrian
Modified:
head/usr.sbin/wpa/wpa_supplicant/driver_freebsd.c
Modified: head/usr.sbin/wpa/wpa_supplicant/driver_freebsd.c
==============================================================================
--- head/usr.sbin/wpa/wpa_supplicant/driver_freebsd.c Sat May 11 20:51:00
2013 (r250527)
+++ head/usr.sbin/wpa/wpa_supplicant/driver_freebsd.c Sat May 11 20:55:14
2013 (r250528)
@@ -693,6 +693,11 @@ wpa_driver_bsd_add_scan_entry(struct wpa
result->caps = sr->isr_capinfo;
result->qual = sr->isr_rssi;
result->noise = sr->isr_noise;
+ /*
+ * the rssi value reported by the kernel is in 0.5dB steps relative to
+ * the reported noise floor. see ieee80211_node.h for details.
+ */
+ result->level = sr->isr_rssi / 2 + sr->isr_noise;
pos = (u8 *)(result + 1);
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