ath10k: set channel by command "iw" not from hostapd and DFS support of firmware-2.bin_10.1.467.2-1

[Janusz Dziedzic]

On 16 May 2014 09:01, Vu Hai NGUYEN <vh.nguyen at actiasodielec.fr> wrote:
>>OK then. EBUSY you get when you don't have correct combination (DFS
>>combination is not present).
>>Which suggest for some reason your configuration didn't activate
>>CONFIG_ATH10K_DFS_CERTIFIED.
>>Check iw list, you shuld see:
>>radar detect widths: { 20 MHz (no HT), 20 MHz, 40 MHz, 80 MHz }
>
> Yes I already did it, here is my configuration:
>
> <M>   Atheros 802.11ac wireless cards support
>    │ │                                 <M>     Atheros ath10k PCI support
>    │ │                                   [*]     Atheros ath10k debugging
>    │ │                                   [*]     Atheros ath10k debugfs support
>    │ │                                   [*]     Atheros ath10k tracing support
>    │ │                                   [*]     Atheros DFS support for certified platforms
>
> But when I check "iw list" I don't see the line like you said. But is this normal? :
>
Seems CONFIG_ATH10K_DFS_CERTIFIED is not set.
You can simply check this during compilation adding eg. to mac.c
#ifndef CONFIG_ATH10K_DFS_CERTIFIED
#error DFS_NOT_SET
#endif

I am not sure but could be if you kernel is old and didn't have this
option (which is available in backports) then will  be not set.
@Bartosz didn't we have same problem, do you remember how this was solved?

BR
Janusz

> Frequencies:
>                         * 5180 MHz [36] (20.0 dBm)
>                         * 5200 MHz [40] (20.0 dBm)
>                         * 5220 MHz [44] (20.0 dBm)
>                         * 5240 MHz [48] (20.0 dBm)
>                         * 5260 MHz [52] (20.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5280 MHz [56] (20.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5300 MHz [60] (20.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5320 MHz [64] (20.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5500 MHz [100] (27.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5520 MHz [104] (27.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5540 MHz [108] (27.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5560 MHz [112] (27.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5580 MHz [116] (27.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5600 MHz [120] (27.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5620 MHz [124] (27.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5640 MHz [128] (27.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5660 MHz [132] (27.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5680 MHz [136] (27.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5700 MHz [140] (27.0 dBm) (no IR, radar detection)
>                           DFS state: usable (for 51683 sec)
>                         * 5745 MHz [149] (disabled)
>                         * 5765 MHz [153] (disabled)
>                         * 5785 MHz [157] (disabled)
>                         * 5805 MHz [161] (disabled)
>                         * 5825 MHz [165] (disabled)
>
>
> NGUYEN Vu Hai
> Acita-Sodielec
> Route de Mayres - B.P. 9
> 12100 St GEORGES DE LUZENCON
> FRANCE