Re: WiFi on NetBSD

[mlelstv%serpens.de@localhost (Michael van Elst)]

asbatwrk%gmail.com@localhost (Andrew Ball) writes:

>  MvE> E.g. this is a RPI4 connecting to a 802.11ac network:

>    That's great!  I wonder whether those are available as plug-in
>network interfaces for other platforms.

There were some Mini-PCI adapters (for notebooks) and there was
one USB adapter ("Original RPI Wifi dongle"). Very difficult
to find nowadays.

Here is an offer on ebay:

https://www.ebay.com/itm/174207787648


>    Have you tested on an 802.11a network?  I wonder whether that
>involves less overhead for the "higher protocol details" you
>mentioned.

The overhead is in the SDIO driver. It's not better in a 802.11g network
(802.11a is rare in Europe).


> I hadn't realised that the WiFi chip on a 4B was connected
>via SDIO.  That's interesting.

Same as in other RPIs, the chips vary slightly (some are 2.4GHz only)
but all use a SDIO interface. The chips themselves can do PCIe, USB
and SDIO, it's probably a matter of packaging what interface is used.