Alright, folks, I think I’ve figured it out.
The crda package has the udev rule, but doesn’t add itself to the
services.udev.packages list.
Adding simply:
services = {
udev = {
packages = [ pkgs.crda ];
};
…
};
to my configuration.nix got it working. Win! Such a tiny fix.
I am still figuring out how these things work in nixland, but I see a couple of
others, such as pkgs/os-specific/linux/rfkill/udev.nix, where there is a
comment explaining you should do basically this to enable it. Should such a
comment be added to the crda package? If so, should I file this as a GitHub
issue?
Ta,
Matt
> On Jul 20, 2016, at 4:51 PM, Matthew Robbetts <[email protected]> wrote:
>
>>
>> On Jul 20, 2016, at 1:30 PM, Matthew Robbetts <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> Tobias!
>>
>>> On Jul 20, 2016, at 10:15 AM, Tobias Geerinckx-Rice <[email protected]
>>> <mailto:[email protected]>> wrote:
>>>
>>> Matthew,
>>>
>>> On 2016-07-20 18:09, Matthew Robbetts wrote:
>>>> Unfortunately, it didn't fix my problem. After some more digging, I think
>>>> the
>>>> problem is related to my wireless regulatory database -- in that, I don't
>>>> think I have one.
>>>
>>> I added a wireless-regdb package once, but it might need some symlinking to
>>> properly work with iw out of the box. I just wanted the data.
>>
>> That is an exceptionally promising response for my problem :)
>>
>> I did notice that a regdb package exists, and I do have it installed. This
>> possibly explains why that doesn't fix it.
>>
>> I can try and dig into this package to see what’s what — but I’ve no idea of
>> what symlinking might be needed. Any hints off the top of your head would be
>> welcome. If not, I’ll try and look at it later and may have some questions
>> for you…
>
> Oh, oh! One for the group:
>
> I notice that the crda package has a udev rule in it:
>
> /nix/store/6nzijs5fiwsm4hzpvvfyxkhb17gxdwwc-crda-3.18/lib/udev/rules.d/85-regulatory.rules
>
> but after installation this rule has not made it into my
> /run/current-system/sw/lib/udev/rules.d/ folder (I think it needs to be there
> for it to work, right?)
>
> So, what can I override in the crda package derivation (or whatever) to make
> this symlink happen? Nix is frustrating sometimes — a simple ln -s is
> disallowed! :)
>
>
> After some poking, I’ve found the services.udev.extraRules key, and added the
> text of the rules file to that in my configuration.nix, as
>
> services = {
> udev = {
> extraRules = "KERNEL=='regulatory*', ACTION=='change',
> SUBSYSTEM=='platform',
> RUN+='/nix/store/6nzijs5fiwsm4hzpvvfyxkhb17gxdwwc-crda-3.18/bin/crda'";
> };
> …
>
> but that doesn’t seem to help either.
>
>
> So close! Possibly…
>
> Any thoughts?
>
>
>
>
>
>
>>
>> Thanks!
>> Matt
>>
>>
>>
>>>
>>> Kind regards,
>>>
>>> T G-R
>>>
>>> --
>>> Sent from a web browser. Excuse my brevity.
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