Question about ethernet hats.

So, i found an interesting ethernet/usb hat kinda like the size.ro Link to the product wiki
And i’m wondering, if it doesn’t mention installing ANY drivers does it mean it could work with Risc OS?

It won’t work. I believe it has a Realtek Ethernet chipset, which isn’t supported by EtherUSB, sadly.

The instructions say: Connect USB interface of Raspberry Pi to micro USB interface of ETH/USB HUB HAT

So basically it’s a USB hub with integrated Ethernet.
Um, kind of like the one already built in (unless Pi0).

It might work, as the current driver for the Pi family supports several (4? 5?) types of USB Ethernet. You’d need to know what chip is used.

Additionally, if this is connected to a Pi that already has networking, what will happen? Two interfaces? The driver sulking? Only using the first one found?

It may work, but we won’t know until somebody tries.

Edit: while I was writing this (and eating dinner), andym suggested that it might use an incompatible chip…

Confirmed – according to the schematic, it’s an RTL8152B.

https://datasheet.lcsc.com/szlcsc/Realtek-Semicon-RTL8152B-VB-CG_C50656.pdf

Aww. Is there an list of compatibile chips?

From about line 58 on this page: https://www.riscosopen.org/viewer/view/bsd/RiscOS/Sources/Networking/Ethernet/EtherUSB/c/products?rev=1.8#l58

Takes a little bit of deciphering, but basically consists of some ASIX chips, some SMSC chips and some Pegasus chips.

Again though, sadly no Realtek ones. They seen quite prolific, but not for RISC OS.

The ReadMe file is a bit easier to decipher :)

Edit: But doesn’t seem to be up to date!