Re: [PATCH] wifi: Choose a random channel when opening an ap

From: Daniel Wagner <wagi@monom.org>
To: HENRIET Vivien <vivien.henriet@overkiz.com>
Cc: "connman@lists.linux.dev" <connman@lists.linux.dev>
Subject: Re: [PATCH] wifi: Choose a random channel when opening an ap
Date: Wed, 29 Sep 2021 11:16:41 +0200	[thread overview]
Message-ID: <20210929091641.fg4v7pbol2nysgrd@carbon.lan> (raw)
In-Reply-To: <bd9eda8f-02c8-7ae0-7fa7-5bf8b2127db8@overkiz.com>

Hi Vivien,

On Wed, Sep 29, 2021 at 08:57:25AM +0000, HENRIET Vivien wrote:
> Hi Daniel,
> 
> Could you have a look to this patch?

Sorry for the delay. Anyway, I think it would be better to make this
configurable or smarter instead of a random channel selection. I just
checked what iwd is doing and if I got it right, the iwd daemon does the
channel selection itself.

> I would like to be able to open the WiFi AP on different channel.
> The simplest way to do it, is to select a random channel, which fit my need.
> Do you think its acceptable to integrate this way?

Random channel selection is a bit a wild solution :).

> I've got also other ideas to achieve the same goal:
> - Add an optional channel parameter when opening the AP

This is what I would suggest. Alternatively, can't we use some metrics
from the last scan to figure out which channel is crowded?

> - Add a global config to set the channel

Generally I would like to avoid adding more config option if there is a
way to figure it out.

Daniel