[PATCH] Scan other networks first to unlock 5GHz bands on Intel cards

Taavi Eomäe taavieomae at gmail.com
Sat Aug 10 02:50:25 PDT 2024


Hi,

Not the submitter of the patch, but I think this is needed because of 
Intel's Location Aware Regulatory (LAR). If a scan is not done 
beforehand, all 5GHz channels are marked as NO-IR.

This is incredibly inconvenient, but indeed a quirk with Intel cards. 
There's also an open Bugzilla ticket about it: 
https://bugzilla.kernel.org/show_bug.cgi?id=206469

It also has the nasty side-effect of making 6GHz APs practically 
impossible to start.

On 03/08/2024 11:55, Jouni Malinen wrote:
> On Wed, Jul 17, 2024 at 07:56:04PM +0000, Pedro Goncalves (developer account) wrote:
>> Subject: [PATCH] For intel Wi-Fi cards, force to scan other wireless networks so the drive is able to set the correct region - master
>>
>> Signed-off-by: Pedro Goncalves <pgoncalves-developer at protonmail.com>
> This would need much more detailed commit message to justify why this is
> needed and why this is appropriate behavior. How is this specific to
> Intel cards? Why would an AP be allowed to operate on the 5 GHz band
> based on just a single scan if it was not allowed to do so without that
> scan?
>
>> Index: src/ap/hostapd.h
>> IDEA additional info:
>> Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
>> <+>UTF-8
>> ===================================================================
>> diff --git a/src/ap/hostapd.h b/src/ap/hostapd.h
> And this format is pretty strange and requires manual operations to
> apply with 'git am'.
>



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