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Re: Re: Realtek RTL8723DE, RTL8821CE, RTL8822BE and RTL8822CE chipsets

On Tue, Apr 06, 2021 at 11:46:34AM +0500, Alexander E. Patrakov wrote:
> Andrey Rahmatullin wrote:
> > Can you please list some unsupported chips in addition to these specific Realtek ones?
> Bad question.
> Recently I had to choose and buy a USB WiFi adapter suitable for
> making a software access point. And this is in a semi-rural area, so
> almost no interference from neighbors. So I thought, let's make sure
> that the USB bus is not a limiting factor. I.e., the requirements are:
> USB3, 802.11ac or ax, can act as an access point in Linux, can
> actually be bought here in Russia. Result: all (and yes I mean "all",
> 100%) of USB3 WiFi adapters available in Russia (according to
> market.yandex.ru, which aggregates almost all major shops) are based
> on various unsupported-in-mainline Realtek chipsets (RTL8812AU,
> RTL8814AU, RTL8812BU). So there is no exception. You can check this
> yourself by going through this product list, it's not that long:
> https://market.yandex.ru/catalog--wi-fi-oborudovanie-v-ekaterinburge/55410/list?cpa=0&hid=723087&glfilter=4863258%3A12107055&glfilter=18057628%3A18057633%2C18057635&glfilter=4863263%3A12107090&glfilter=4863264%3A12107093&onstock=1&local-offers-first=1
I see now, this is a problem specific to USB adapters.
The same page for PCIe ones lists a lot of Intel and BCM ones (I wouln't
buy BCM of course but I know there is some BCM stuff in Debian). All my
WiFi adapters I ever used with Linux (included with a laptop, included
with a motherboard, bought separatele for PCIe) were either Intel or
Ralink and all of them worked fine without extra drivers, even though
iwlwifi sometimes breaks with some kernel versions.


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