Failed to start radar detection: -22 (Invalid argument)

[Janusz Dziedzic]

On 28 January 2015 at 23:59, Jeremias Blendin <jeremias at blendin.org> wrote:
> Hi,
>
> I am having issues to get a ath10k wifi card working and I did not
> find any information on the -22 error code:
>
> HT40: control channel: 52  secondary channel: 56
> Completing interface initialization
> Mode: IEEE 802.11a  Channel: 52  Frequency: 5260 MHz
> DFS 4 channels required radar detection
> DFS all channels available, (SKIP CAC): no
> DFS 0 chans unavailable - choose other channel: no
> wlan1: interface state HT_SCAN->DFS
> DFS start CAC on 5260 MHz
> wlan1: DFS-CAC-START freq=5260 chan=52 sec_chan=1, width=1, seg0=58,
> seg1=0, cac_time=60s
> nl80211: Start radar detection (CAC) 5260 MHz (ht_enabled=1,
> vht_enabled=1, bandwidth=80 MHz, cf1=5290 MHz, cf2=0 MHz)
> nl80211: Failed to start radar detection: -22 (Invalid argument)
> DFS start_dfs_cac() failed, -1
> Interface initialization failed
> wlan1: interface state DFS->DISABLED
> wlan1: AP-DISABLED
> ....
>
> System information:
> Linux kyushu 3.16.0-29-generic #39-Ubuntu SMP Mon Dec 15 22:27:29 UTC
> 2014 x86_64 x86_64 x86_64 GNU/Linux
> Firmware:
> [   15.060828] ath10k: pci irq MSI irq_mode 0 reset_mode 0
> [   16.919940] ath10k: qca988x hw2.0 (0x4100016c, 0x043202ff) fw
> 10.1.467.2-1 api 2 htt 2.1
> Country:
> iw reg get
> country DE: DFS-UNSET
DFS region, this is an issue. Update your regulatory database
(CRDA/WirelessDB) or db.txt in case you are using internal regulatory
from kernel.
You should have country DE: DFS-ETSI

BR
Janusz

> (2400 - 2483 @ 40), (N/A, 20)
> (5150 - 5250 @ 80), (N/A, 20), NO-OUTDOOR
> (5250 - 5350 @ 80), (N/A, 20), NO-OUTDOOR, DFS
> (5470 - 5725 @ 80), (N/A, 26), DFS
> (57240 - 65880 @ 2160), (N/A, 40), NO-OUTDOOR
>
> Any ideas what could be the issue?
>
> Jeremias
>
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