ath9k DFS failed -16 (Device or resource busy)

[Benoit]

Thanks
Do you know a procedure to build it with the option?
Is it a kernel module I can modify the options on and rebuild the module 
only?

On February 22, 2016 12:13:07 PM GMT+01:00, Janusz Dziedzic 
<janusz.dziedzic at tieto.com> wrote:

    On 22 February 2016 at 09:25, Benoit <benoitne at gmail.com> wrote:

        Hi Janusz, Without | grep radar as it doesn't match anything :


    So, your driver is compiled without ATH9K_DFS_CERTIFIED.

        for 2.4Ghz iw pnic_wlan info Interface pnic_wlan ifindex 3 wdev
        0x1 addr 20:7c:8f:7f:e1:c3 ssid belette_lab type AP wiphy 0
        channel 6 (2437 MHz), width: 40 MHz, center1: 2447 MHz without
        hostap: iw pnic_wlan info Interface pnic_wlan ifindex 3 wdev 0x1
        addr 20:7c:8f:7f:e1:c3 type managed wiphy 0 Is there a specific
        patch for this to work properly? many thanks On 02/21/2016 06:22
        PM, Janusz Dziedzic wrote:

            What show: iw phyX info |grep radar? I have: radar detect
            widths: { 20 MHz (no HT), 20 MHz, 40 MHz } What in your
            case? Maybe you don't have patch for HT40? Does DFS HT20
            works correctly? BR Janusz