On 2023-09-27, Anders Jensen-Waud wrote:
> On Tue, Sep 26, 2023 at 08:35:29AM +0200, Stefan Sperling wrote:
>> On Tue, Sep 26, 2023 at 11:04:21AM +0800, Anders Jensen-Waud wrote:
> >
>> > Is there a way I can get the NIC to speed up?
>>
>> Yes, the way is to implement 802.11n support in the driver.
>> Help is welcome.
>>
>
> Thank you very much, Stefan.
>
> Is there no way to switch mode to 802.11ac or similar and get reasonable
> performance?
Firstly your WN821N (an 11n NIC) won't support 11ac anyway.
Newer wireless protocols aren't just "a mode" but a whole set of things
are needed from the hardware and driver and 802.11 stack to support them
- different radio modulation, features like frame aggregation, block
ack, etc.
>> FreeBSD already has code for 802.11n/HT support in their fork of
>> the rtwn driver, which has significantly diverged over years.
>
> I will give FreeBSD a spin, although my preference is to run OpenBSD.
I think that was a hint as to where to look if wanting to work on the
OpenBSD driver for WN821N to support 11n. (11n will be a huge
improvement over 11g - obviously not as good as a full 11ac
implementation but still fairly usable - in large part due to the
additional features rather than modulation).
BTW if you can find one, the white Raspberry Pi branded adapters are
not a bad choice for USB wifi:
https://thepihut.com/cdn/shop/products/official-raspberry-pi-wifi-adapter-discontinued-raspberry-pi-101591-2257829828_1000x.jpg
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