Return-path: Received: from mail-pw0-f46.google.com ([209.85.160.46]:41699 "EHLO mail-pw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757360Ab2BCSqh convert rfc822-to-8bit (ORCPT ); Fri, 3 Feb 2012 13:46:37 -0500 Received: by pbdu11 with SMTP id u11so3111654pbd.19 for ; Fri, 03 Feb 2012 10:46:37 -0800 (PST) MIME-Version: 1.0 From: Alfonso Fiore Date: Fri, 3 Feb 2012 19:46:07 +0100 Message-ID: (sfid-20120203_194641_464968_9297C56A) Subject: Setting up an AP @ 5 GHz 802.11a - hostapd refuses [Could not select hw_mode and channel. (-1)] To: linux-wireless@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: 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=<> #wpa_passphrase=voyage-mpd wpa_passphrase=<> 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]