ath9k DFS failed -16 (Device or resource busy)

[Benoit]

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

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
>