Distro guidance for how to "install" the new rpi02w firmware

[colemickens]

Hi,

I thought I had understood the gist of #23, but I'm still not seeing any wireless devices on the rpi02w.

I'm linking to the raw Nix file, but hopefully it's pretty explicit about what I'm doing:

https://github.com/colemickens/nixpkgs/blob/ca30f6b48d4be7a83fc479a4838d08d663f1146b/pkgs/os-specific/linux/firmware/raspberrypi-wireless/default.nix#L45-L50

    ln -s "./${rpi02w}-sdio.txt" "$out/lib/firmware/brcm/brcmfmac43436-sdio.raspberrypi,model-zero-2.txt"
    ln -s "./${rpi02w}-sdio.txt" "$out/lib/firmware/brcm/brcmfmac43436-sdio.raspberrypi,model-zero-2-w.txt"
    ln -s "./${rpi02w}f-sdio.txt" "$out/lib/firmware/brcm/brcmfmac43436f-sdio.raspberrypi,model-zero-2.txt"
    ln -s "./${rpi02w}f-sdio.txt" "$out/lib/firmware/brcm/brcmfmac43436f-sdio.raspberrypi,model-zero-2-w.txt"
    ln -s "./${rpi02w}s-sdio.txt" "$out/lib/firmware/brcm/brcmfmac43436s-sdio.raspberrypi,model-zero-2.txt"
    ln -s "./${rpi02w}s-sdio.txt" "$out/lib/firmware/brcm/brcmfmac43436s-sdio.raspberrypi,model-zero-2-w.txt"

where rpi02w is set to brcmfmac43436.

Questions:

• What is the "device name" that is used for the text file here (is this in device tree maybe?) Do I symlink all three variants of the firmware?
• Is the rpi02w value correct?
• What else should I check?

Thanks

[colemickens]

I got something to work:

colemickens/nixpkgs@f94e62a

[XECDesign]

This kind of thing is probably better addressed on the forum.

I'd just say compare what we ship Raspberry Pi OS with what ends up installed by the Nix package. Looking just as the .deb may be a bit misleading, since we use 'update-alternatives' in postinst.

[XECDesign]

Heads up that some file names have changed.

cypress/cyfmac43455-sdio-standard.bin should be installed, or linked to brcm/brcmfmac43455-sdio.bin
You can see here for the difference between the standard and minimal versions.

brcm/brcmfmac43456f-sdio.bin has been renamed to brcm/brcmfmac43456-sdio.bin and should be installed as such.