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Re: 802.11a is supported in AP mode or not?

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On Thu, Jan 23, 2014 at 2:20 PM, zhuyj <zyjzyj2000@xxxxxxxxx> wrote:
> On 01/23/2014 04:23 PM, Emmanuel Grumbach wrote:
>>
>> On Thu, Jan 23, 2014 at 8:44 AM, zhuyj <zyjzyj2000@xxxxxxxxx> wrote:
>>>
>>> On 01/23/2014 02:15 PM, Krishna Chaitanya wrote:
>>>>
>>>> hostapd -dd -B /etc/hostapd.conf
>>>
>>> root@wind-desktop:~# hostapd -dd -B /etc/hostapd.conf
>>>
>>> random: Trying to read entropy from /dev/random
>>> Configuration file: /etc/hostapd.conf
>>> ctrl_interface_group=0
>>> nl80211: interface wlan0 in phy phy0
>>> rfkill: initial event: idx=0 type=1 op=0 soft=0 hard=0
>>> nl80211: Using driver-based off-channel TX
>>> nl80211: Register frame command failed (type=208): ret=-114 (Operation
>>> already in progress)
>>> nl80211: Register frame match - hexdump(len=2): 04 0a
>>> nl80211: Failed to register Action frame processing - ignore for now
>>> nl80211: Add own interface ifindex 3
>>> nl80211: Set mode ifindex 3 iftype 3 (AP)
>>> nl80211: Create interface iftype 6 (MONITOR)
>>> nl80211: New interface mon.wlan0 created: ifindex=4
>>> nl80211: Add own interface ifindex 4
>>> BSS count 1, BSSID mask 00:00:00:00:00:00 (0 bits)
>>> nl80211: Regulatory information - country=00
>>> nl80211: 2402-2472 @ 40 MHz
>>> nl80211: 2457-2482 @ 40 MHz
>>> nl80211: 2474-2494 @ 20 MHz
>>> nl80211: 5170-5250 @ 40 MHz
>>> nl80211: 5735-5835 @ 40 MHz
>>> nl80211: Added 802.11b mode based on 802.11g information
>>> Allowed channel: mode=1 chan=1 freq=2412 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=1 chan=2 freq=2417 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=1 chan=3 freq=2422 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=1 chan=4 freq=2427 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=1 chan=5 freq=2432 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=1 chan=6 freq=2437 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=1 chan=7 freq=2442 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=1 chan=8 freq=2447 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=1 chan=9 freq=2452 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=1 chan=10 freq=2457 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=1 chan=11 freq=2462 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=0 chan=1 freq=2412 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=0 chan=2 freq=2417 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=0 chan=3 freq=2422 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=0 chan=4 freq=2427 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=0 chan=5 freq=2432 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=0 chan=6 freq=2437 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=0 chan=7 freq=2442 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=0 chan=8 freq=2447 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=0 chan=9 freq=2452 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=0 chan=10 freq=2457 MHz max_tx_power=15 dBm
>>> Allowed channel: mode=0 chan=11 freq=2462 MHz max_tx_power=15 dBm
>>> wlan0: IEEE 802.11 Configured channel (1) not found from the channel list
>>> of
>>> current mode (2) IEEE 802.11a
>>>
>>> wlan0: IEEE 802.11 Hardware does not support configured channel
>>> Could not select hw_mode and channel. (-4)
>>> wlan0: Unable to setup interface.
>>> Flushing old station entries
>>> Deauthenticate all stations
>>> rmdir[ctrl_interface]: No such file or directory
>>> nl80211: Remove interface ifindex=4
>>> netlink: Operstate: linkmode=0, operstate=6
>>> nl80211: Set mode ifindex 3 iftype 2 (STATION)
>>> root@wind-desktop:~#
>>>
>>>
>>> root@wind-desktop:~# hostapd -v
>>
>> I think you have the answer to your question, don't you?
>>
> Yeah, maybe the hardware can support 802.11a, but the driver does not
> support 802.11a?

All the 5GHz channels are either disabled (or) passive-scan, so AP operation
will not work. (from iw phy)

Why don't you try with hostapd from git (1.0 is old)? It has changes to
handle regulatory and channel list update properly.
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