Re: iwlwifi/AX210: country AU maps to ROW and omits common Australian 5 GHz channels 36-48

Hi Bjoern,

It just won't connect on the DFS channels. When I check the channels I 
get the following:

ifconfig wlan0 list txpower
Channel   1 : 2412 MHz 30.0 reg 30  Channel  68 : 5340 MHz 23.0 reg 23
Channel   2 : 2417 MHz 30.0 reg 30  Channel  96 : 5480 MHz 26.0 reg 26
Channel   3 : 2422 MHz 30.0 reg 30 *Channel 100 : 5500 MHz 30.0 reg 30 ***
Channel   4 : 2427 MHz 30.0 reg 30 *Channel 104 : 5520 MHz 30.0 reg 30 ***
Channel   5 : 2432 MHz 30.0 reg 30 *Channel 108 : 5540 MHz 30.0 reg 30 ***
Channel   6 : 2437 MHz 30.0 reg 30 *Channel 112 : 5560 MHz 30.0 reg 30 ***
Channel   7 : 2442 MHz 30.0 reg 30  Channel 116 : 5580 MHz 26.0 reg 26
Channel   8 : 2447 MHz 30.0 reg 30  Channel 132 : 5660 MHz 30.0 reg 30
Channel   9 : 2452 MHz 30.0 reg 30  Channel 136 : 5680 MHz 30.0 reg 30
Channel  10 : 2457 MHz 30.0 reg 30  Channel 140 : 5700 MHz 30.0 reg 30
Channel  11 : 2462 MHz 30.0 reg 30  Channel 144 : 5720 MHz 30.0 reg 30
Channel  36 : 5180 MHz 23.0 reg 23  Channel 149 : 5745 MHz 36.0 reg 36
Channel  40 : 5200 MHz 23.0 reg 23  Channel 153 : 5765 MHz 36.0 reg 36
Channel  44 : 5220 MHz 23.0 reg 23  Channel 157 : 5785 MHz 36.0 reg 36
Channel  48 : 5240 MHz 23.0 reg 23  Channel 161 : 5805 MHz 36.0 reg 36
Channel  52 : 5260 MHz 23.0 reg 23  Channel 165 : 5825 MHz 36.0 reg 36
Channel  56 : 5280 MHz 23.0 reg 23  Channel 169 : 5845 MHz 36.0 reg 36
Channel  60 : 5300 MHz 23.0 reg 23  Channel 173 : 5865 MHz 36.0 reg 36
Channel  64 : 5320 MHz 23.0 reg 23


The access point is configured for Channels 100 - 112 with a 80MHz 
channel width.

The regdomain has the following entry that I've been playing with that 
provides the 100 - 112 range.

     <band>
       <freqband ref="AC2_5500_5580_80"/>
       <maxpower>30</maxpower>
       <flags>IEEE80211_CHAN_PASSIVE</flags>
       <flags>IEEE80211_CHAN_DFS</flags>
     </band>

....

<freqband id="AC2_5500_5580_80">
     <freqstart>5500</freqstart> <freqend>5580</freqend>
     <chanwidth>80</chanwidth> <chansep>20</chansep>
     <flags>IEEE80211_CHAN_A</flags>
     <flags>IEEE80211_CHAN_HT40</flags>
     <flags>IEEE80211_CHAN_VHT80</flags>
</freqband>


I have drafted this together with the following resources:

https://wisp.net.au/info/5ghz-channel-spectral-width-in-australia-6.html
https://en.wikipedia.org/wiki/List_of_WLAN_channels#cite_note-N5001000-67

I'm not sure about the maxpower level. I'm basing this on the following 
from Claude. I haven't had a chance to verify this yet (Sometimes it's 
helpful...):


      Australian DFS Power Limits

According to ACMA regulations and AS/NZS 4268, Australian 5 GHz bands 
have these requirements:

  * 5150–5250 MHz: 200 mW EIRP (~23 dBm)
  * 5250–5350 MHz: DFS required, 200 mW (~23 dBm)
  * 5470–5725 MHz: DFS required, 1000 mW (~30 dBm)



Note: I'm currently trying to understand how this works so if you have 
any recommendations of what to read, or can point me in the direction of 
where in the codebase to look where I can further understand how this 
all works. Happy to help where I can.

Kind regards
Ben

On 6/15/26 17:53, Bjoern A. Zeeb wrote:
> On Mon, 15 Jun 2026, Ben Hutton wrote:
>
>> The updated patch that Bjoern supplied works for non DFS channels. 
>> I've been experimenting with getting the DFS channels working.
>
> Hmm interesting.  In what way are they not working?
>
> The one thing I can think of which can be a problem is if your AP is 
> set to
> automatically select a channel and switches due to detection while you 
> are
> associated as LinuxkPI is not handling CSA currently.  I got one 
> report of
> that from someone in Germany a while ago.
>
> Let me know if I can help.
>
> /bz
>