I configured hostapd for channel 44, and gave it option for HT40+ That seems to work fine: [root@ct520-6157 ]# cat /debug/ieee80211/wiphy0/ath9k/wiphy wiphy0 (chan=44 center-freq: 5220 MHz channel-type: 3 (ht40+)) addr: 00:0e:8e:32:12:cf addrmask: ff:79:e8:45:74:31 rfilt: 0x4497 UCAST MCAST BCAST BEACON PROBEREQ COMP_BAR PSPOLL [root@ct520-6157 ]# However, the clients will not use HT40 because this check from the kernel's mlme.c fails: case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: if (!(local->hw.conf.channel->flags & IEEE80211_CHAN_NO_HT40PLUS)) channel_type = NL80211_CHAN_HT40PLUS; Both systems are ath9k on 3.0.6+ (+ my standard set of hacks). Both systems are using US country code. Client-side: 03:00.0 Network controller: Atheros Communications Inc. AR9160 802.11abgn Wireless PCI Adapter (rev 01) AP: 03:00.0 Network controller: Atheros Communications Inc. AR9300 Wireless LAN adaptor (rev 01) So, the question is: Is this *supposed* to work? The hostapd conf file seems to indicate that HT40+ is valid on channel 44... The hostapd config file is here: interface=vap0 driver=nl80211 logger_syslog=-1 logger_syslog_level=2 logger_stdout=-1 logger_stdout_level=2 dump_file=/home/lanforge/wifi/hostapd_vap0.dump ctrl_interface=/var/run/hostapd ctrl_interface_group=0 ssid=test123 bssid=00:88:99:88:99:01 country_code=US ieee80211d=0 hw_mode=a ieee80211n=1 channel=44 beacon_int=240 dtim_period=2 max_num_sta=2007 rts_threshold=2347 fragm_threshold=2346 preamble=0 macaddr_acl=0 auth_algs=3 ignore_broadcast_ssid=0 # Enable HT modes if you want 300Mbps+ throughput. #ht_capab=[HT20][HT40-][HT40+][GF][SHORT-GI-20][SHORT-GI-40] # [TX-STBC][RX-STBC123][MAX-AMSDU-7935][DSSS_CCK-40][PSMP][LSIG-TXOP-PROT] ht_capab=[HT20][HT40+][HT40-][SHORT-GI-40] wmm_enabled=1 wmm_ac_bk_cwmin=4 wmm_ac_bk_cwmax=10 wmm_ac_bk_aifs=7 wmm_ac_bk_txop_limit=0 wmm_ac_bk_acm=0 wmm_ac_be_aifs=3 wmm_ac_be_cwmin=4 wmm_ac_be_cwmax=10 wmm_ac_be_txop_limit=0 wmm_ac_be_acm=0 wmm_ac_vi_aifs=2 wmm_ac_vi_cwmin=3 wmm_ac_vi_cwmax=4 wmm_ac_vi_txop_limit=94 wmm_ac_vi_acm=0 wmm_ac_vo_aifs=2 wmm_ac_vo_cwmin=2 wmm_ac_vo_cwmax=3 wmm_ac_vo_txop_limit=47 wmm_ac_vo_acm=0 ieee8021x=0 eapol_key_index_workaround=0 eap_server=0 own_ip_addr=127.0.0.1 wpa=1 wpa_pairwise=TKIP CCMP wpa_passphrase=test1234 Thanks, Ben -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
