Raspberry Pi 3 Wireless interface

Help
1

I’ve been trying to use my Raspberry Pi 3 with NixOS but I can’t find a way to make it recognize the wlan0 interface.

The following is my configuration.nix:

# current revision is 9f697d60e4d9f08eacf549502528bfaed859d33b
{ pkgs, inputs, ... }:

{
  imports = [
    "${inputs.nixpkgs}/nixos/modules/installer/sd-card/sd-image-aarch64.nix"
  ];

  boot.kernelPackages = pkgs.linuxPackages_rpi3;
  hardware.enableRedistributableFirmware = true;

  networking.networkmanager.enable = true;

  services.openssh = {
    enable = true;
  };

For context, I found some issues related to this problem however none of the workarounds worked for me.

2

Yeah thats a problem, currently discussed in
Raspberry Pi 3B is missing wlan0 interface · Issue #115652 · NixOS/nixpkgs · GitHub.

The only way I’m currently able to use my Raspberry Pi 3 B(?) is by
using nixos-21.05 and appliying the override shown in the first post of
the linked issue.

3

Oops just realised you already linked the issue, sorry.

4

The only way I’m currently able to use my Raspberry Pi 3 B(?) is by
using nixos-21.05 and appliying the override shown in the first post of
the linked issue.

This might solve the issue for me… I’ll see if using the kernel package from 21.05 works!

5

Please try:

  hardware.enableRedistributableFirmware = false;
  hardware.firmware = [ pkgs.firmwareLinuxNonfree ];

This works for me.

6

@cbley which version are you using? I’ve tested this with unstable and the latest stable to no success, unfortunately.

7

Hi @ratsclub , sorry for the late reply…

I am on nixos 21.11-small currently, and someone else on Github confirmed this also works when using raspberrypi firmware:

hardware.enableRedistributableFirmware = false;
hardware.firmware = [ pkgs.raspberrypiWirelessFirmware];

Maybe there is another module in your config that adds the firmware back? What is your dmesg output?

Look at the files in /run/current-system/firmware/brcm, where do these files link to? You need to avoid having files from firmwareLinuxNonfree and raspberrypiWirelessFirmware packages at the same time.

3 Likes
8

Hmm… I deleted all my configurations and did what you sent here. It worked like a charm on nixos-unstable!

Thanks for the help!

1 Like
9

The Wiki should be updated with this.

1 Like