Ok I studied some more. I found an howto http://forum.aircrack-ng.org/index.php?topic=7826.0 to edit db.txt and create a custom regulatory.bin (including the openWrt patch to drivers/net/wireless/ath/regd.c). I also found out about ath_info http://madwifi-project.org/wiki/UserDocs/AthInfo and I rewrote my regdomain: ./ath_info -v -g 4:0 -w 0xeffd0000 regdomain 0x68 I can tell these things worked since I can now fully access the 2.4 GHz channels (before I couldn't use 12 and 13): Wiphy phy0 Band 1: Frequencies: * 2412 MHz [1] (20.0 dBm) * 2417 MHz [2] (20.0 dBm) * 2422 MHz [3] (20.0 dBm) * 2427 MHz [4] (20.0 dBm) * 2432 MHz [5] (20.0 dBm) * 2437 MHz [6] (20.0 dBm) * 2442 MHz [7] (20.0 dBm) * 2447 MHz [8] (20.0 dBm) * 2452 MHz [9] (20.0 dBm) * 2457 MHz [10] (20.0 dBm) * 2462 MHz [11] (20.0 dBm) * 2467 MHz [12] (20.0 dBm) * 2472 MHz [13] (20.0 dBm) * 2484 MHz [14] (disabled) *** But why I still can't access any channel at 5 GHz? *** and what's the meaning of (disabled)? Is this due to a hardware limitation? In the 2.4 band, I managed to switch channel 12 and 13 from (passive scanning) to available and channel 14 from (passive scanning) to (disabled). Why? This is the situation at 5 Ghz: Band 2: Frequencies: * 5040 MHz [8] (disabled) * 5060 MHz [12] (disabled) * 5080 MHz [16] (disabled) * 5180 MHz [36] (30.0 dBm) (passive scanning, no IBSS) * 5200 MHz [40] (30.0 dBm) (passive scanning, no IBSS) * 5220 MHz [44] (30.0 dBm) (passive scanning, no IBSS) * 5240 MHz [48] (30.0 dBm) (passive scanning, no IBSS) * 5260 MHz [52] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5280 MHz [56] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5300 MHz [60] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5320 MHz [64] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5500 MHz [100] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5520 MHz [104] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5540 MHz [108] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5560 MHz [112] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5580 MHz [116] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5600 MHz [120] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5620 MHz [124] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5640 MHz [128] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5660 MHz [132] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5680 MHz [136] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5700 MHz [140] (30.0 dBm) (passive scanning, no IBSS, radar detection) * 5745 MHz [149] (30.0 dBm) (passive scanning, no IBSS) * 5765 MHz [153] (30.0 dBm) (passive scanning, no IBSS) * 5785 MHz [157] (30.0 dBm) (passive scanning, no IBSS) * 5805 MHz [161] (30.0 dBm) (passive scanning, no IBSS) * 5825 MHz [165] (30.0 dBm) (passive scanning, no IBSS) Thank you, alfonso On Fri, Feb 3, 2012 at 7:46 PM, Alfonso Fiore <alfonso.fiore@xxxxxxxxx> wrote: > > Hi, > > I have an embedded system (ALIX) with an Atheros AR5414 chipset (802.11 a/b/g) > > I realized I have a wireless pollution problem at 2.4 GHz, so I > thought to setup an 802.11a AP (5 GHz). > > hostapd tells me I have only 2.4 GHz channels available. Why? > Is there a chance to use the 5 Ghz channels? As I realize it's a > regulatory issue, I live in France. > > I attached output of > - /usr/sbin/hostapd -dd /etc/hostapd/hostapd.wlan0.conf > - iw list > - cat /etc/hostapd/hostapd.wlan0.conf > > thank you, > alfonso > > # /usr/sbin/hostapd -dd /etc/hostapd/hostapd.wlan0.conf > Configuration file: /etc/hostapd/hostapd.wlan0.conf > Line 9: DEPRECATED: 'debug' configuration variable is not used anymore > eapol_version=1 > nl80211: Add own interface ifindex 3 > nl80211: New interface mon.wlan0 created: ifindex=25 > nl80211: Add own interface ifindex 25 > BSS count 1, BSSID mask 00:00:00:00:00:00 (0 bits) > nl80211: Added 802.11b mode based on 802.11g information > Allowed channel: mode=1 chan=1 freq=2412 MHz max_tx_power=20 dBm > Allowed channel: mode=1 chan=2 freq=2417 MHz max_tx_power=20 dBm > Allowed channel: mode=1 chan=3 freq=2422 MHz max_tx_power=20 dBm > Allowed channel: mode=1 chan=4 freq=2427 MHz max_tx_power=20 dBm > Allowed channel: mode=1 chan=5 freq=2432 MHz max_tx_power=20 dBm > Allowed channel: mode=1 chan=6 freq=2437 MHz max_tx_power=20 dBm > Allowed channel: mode=1 chan=7 freq=2442 MHz max_tx_power=20 dBm > Allowed channel: mode=1 chan=8 freq=2447 MHz max_tx_power=20 dBm > Allowed channel: mode=1 chan=9 freq=2452 MHz max_tx_power=20 dBm > Allowed channel: mode=1 chan=10 freq=2457 MHz max_tx_power=20 dBm > Allowed channel: mode=1 chan=11 freq=2462 MHz max_tx_power=20 dBm > Allowed channel: mode=0 chan=1 freq=2412 MHz max_tx_power=20 dBm > Allowed channel: mode=0 chan=2 freq=2417 MHz max_tx_power=20 dBm > Allowed channel: mode=0 chan=3 freq=2422 MHz max_tx_power=20 dBm > Allowed channel: mode=0 chan=4 freq=2427 MHz max_tx_power=20 dBm > Allowed channel: mode=0 chan=5 freq=2432 MHz max_tx_power=20 dBm > Allowed channel: mode=0 chan=6 freq=2437 MHz max_tx_power=20 dBm > Allowed channel: mode=0 chan=7 freq=2442 MHz max_tx_power=20 dBm > Allowed channel: mode=0 chan=8 freq=2447 MHz max_tx_power=20 dBm > Allowed channel: mode=0 chan=9 freq=2452 MHz max_tx_power=20 dBm > Allowed channel: mode=0 chan=10 freq=2457 MHz max_tx_power=20 dBm > Allowed channel: mode=0 chan=11 freq=2462 MHz max_tx_power=20 dBm > Could not select hw_mode and channel. (-1) > wlan0: Unable to setup interface. > Flushing old station entries > Deauthenticate all stations > nl80211: Remove interface ifindex=25 > netlink: Operstate: linkmode=0, operstate=6 > > # iw list > Failed to read classid file: Object not found > Wiphy phy0 > Band 1: > Frequencies: > * 2412 MHz [1] (20.0 dBm) > * 2417 MHz [2] (20.0 dBm) > * 2422 MHz [3] (20.0 dBm) > * 2427 MHz [4] (20.0 dBm) > * 2432 MHz [5] (20.0 dBm) > * 2437 MHz [6] (20.0 dBm) > * 2442 MHz [7] (20.0 dBm) > * 2447 MHz [8] (20.0 dBm) > * 2452 MHz [9] (20.0 dBm) > * 2457 MHz [10] (20.0 dBm) > * 2462 MHz [11] (20.0 dBm) > * 2467 MHz [12] (20.0 dBm) (passive scanning) > * 2472 MHz [13] (20.0 dBm) (passive scanning) > * 2484 MHz [14] (20.0 dBm) (passive scanning) > Bitrates (non-HT): > * 1.0 Mbps > * 2.0 Mbps (short preamble supported) > * 5.5 Mbps (short preamble supported) > * 11.0 Mbps (short preamble supported) > * 6.0 Mbps > * 9.0 Mbps > * 12.0 Mbps > * 18.0 Mbps > * 24.0 Mbps > * 36.0 Mbps > * 48.0 Mbps > * 54.0 Mbps > Band 2: > Frequencies: > * 5040 MHz [8] (disabled) > * 5060 MHz [12] (disabled) > * 5080 MHz [16] (disabled) > * 5180 MHz [36] (30.0 dBm) (passive scanning, no IBSS) > * 5200 MHz [40] (30.0 dBm) (passive scanning, no IBSS) > * 5220 MHz [44] (30.0 dBm) (passive scanning, no IBSS) > * 5240 MHz [48] (30.0 dBm) (passive scanning, no IBSS) > * 5260 MHz [52] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5280 MHz [56] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5300 MHz [60] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5320 MHz [64] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5500 MHz [100] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5520 MHz [104] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5540 MHz [108] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5560 MHz [112] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5580 MHz [116] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5600 MHz [120] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5620 MHz [124] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5640 MHz [128] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5660 MHz [132] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5680 MHz [136] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5700 MHz [140] (30.0 dBm) (passive scanning, > no IBSS, radar detection) > * 5745 MHz [149] (30.0 dBm) (passive scanning, no IBSS) > * 5765 MHz [153] (30.0 dBm) (passive scanning, no IBSS) > * 5785 MHz [157] (30.0 dBm) (passive scanning, no IBSS) > * 5805 MHz [161] (30.0 dBm) (passive scanning, no IBSS) > * 5825 MHz [165] (30.0 dBm) (passive scanning, no IBSS) > Bitrates (non-HT): > * 6.0 Mbps > * 9.0 Mbps > * 12.0 Mbps > * 18.0 Mbps > * 24.0 Mbps > * 36.0 Mbps > * 48.0 Mbps > * 54.0 Mbps > > > > # cat /etc/hostapd/hostapd.wlan0.conf > interface=wlan0 > driver=nl80211 > logger_syslog=-1 > logger_syslog_level=2 > logger_stdout=-1 > logger_stdout_level=2 > debug=4 > #dump_file=/tmp/hostapd.dump > #ctrl_interface=/var/run/hostapd > #ctrl_interface_group=0 > #channel=6 > #hw_mode=g > # let's try 5 GHz > channel=40 > hw_mode=a > macaddr_acl=0 > auth_algs=3 > eapol_key_index_workaround=0 > eap_server=0 > # wpa=3 > # only wpa 2 > wpa=2 > #ssid=voyage-mpd > ssid=<<my_SSID>> > #wpa_passphrase=voyage-mpd > wpa_passphrase=<<my_password>> > wpa_key_mgmt=WPA-PSK > wpa_pairwise=TKIP > rsn_pairwise=CCMP > eapol_version=1 > #wme_enabled=1 > #ieee80211n=1 > #ht_capab=[HT40-][HT40+][SHORT-GI-40][TX-STBC][RX-STBC1][DSSS_CCK-40] -- 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
