>Number: 144476 >Category: kern >Synopsis: [ieee80211] Incorrect "SM power save mode" HT capability >constants >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Mar 04 19:20:02 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Alexander Egorenkov >Release: FreeBSD 7.2 STABLE >Organization: >Environment: FreeBSD dantooine 7.2-RELEASE FreeBSD 7.2-RELEASE #1: Sat Feb 27 18:41:55 CET 2010 r...@dantooine:/usr/obj/usr/src/sys/MYKERNEL i386 >Description: I was testing my 802.11n mode device driver and captured an association process with my AP. I noticed that 2 "SM power save mode" HT capability constants were incorrectly defined in header file ieee80211.h. That caused the net80211 stack to send wrong HT capability to my AP during association.
The incorrectly defined constants are IEEE80211_HTCAP_SMPS_OFF and IEEE80211_HTCAP_SMPS_ENA. Code snippet: -------------------------------- #define IEEE80211_HTCAP_SMPS 0x000c /* SM Power Save mode */ #define IEEE80211_HTCAP_SMPS_OFF 0x0000 /* none (static mode) */ #define IEEE80211_HTCAP_SMPS_DYNAMIC 0x0004 /* send RTS first */ /* NB: SMPS value 2 is reserved */ #define IEEE80211_HTCAP_SMPS_ENA 0x000c /* enabled */ -------------------------------- The comments for the both constants are also wrong. >How-To-Repeat: >Fix: I checked the IEEE 802.11n specification and the right values for these constants are: IEEE80211_HTCAP_SMPS_OFF = 0x000c IEEE80211_HTCAP_SMPS_ENA = 0x0000 >Release-Note: >Audit-Trail: >Unformatted: _______________________________________________ freebsd-bugs@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
