svn commit: r250528 - head/usr.sbin/wpa/wpa_supplicant

[Eitan Adler]

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 <Daan at 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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