Passing options to modules via modprobe.d

Passing options to modules via modprobe.d

[Simon Streit]

Hello!,

I've been trying to pass options to certain modules at boot like this:
--8<---------------cut here---------------start------------->8---
(simple-service 'thinkpad-acpi etc-service-type
                (list `("modprobe.d/thinkpad.conf"
                        ,(plain-file "thinkpad.conf"
                                     "options thinkpad_acpi fan_control=1\n"))))
--8<---------------cut here---------------end--------------->8---

This seems all okay and the store item is properly linked to
/etc/modprobe.d.  The only problem though is that this parameter is not
passed to the module.  Thus fan_control is not enabled.   Manually
passing this parameter via modprobe in the command line is fine.

Consing "thinkpad_acpi.fan_control=1" to kernel-arguments works too.

I'm not so sure now wether I've done something wrong.  There is no error
when booting, and modprobe seems to be silently ignoring the files
located in /etc/modprobe.d. 

Any ideas?  How do you pass your parameters to modprobe? 


Kind regards
Simon 

Re: Passing options to modules via modprobe.d

[Mekeor Melire]

2022-05-16 20:51 simon@netpanic.org:

> I've been trying to pass options to certain modules at boot like 
> this:
>
> --8<---------------cut 
> here---------------start------------->8---
> (simple-service 'thinkpad-acpi etc-service-type
>                 (list `("modprobe.d/thinkpad.conf"
>                         ,(plain-file "thinkpad.conf"
>                                      "options thinkpad_acpi 
>                                      fan_control=1\n"))))
> --8<---------------cut 
> here---------------end--------------->8---
>
> This seems all okay and the store item is properly linked to 
> /etc/modprobe.d. The only problem though is that this parameter 
> is not passed to the module. Thus fan_control is not enabled.

I'm running into the same problem! I guess we should report this 
as bug?

> Manually passing this parameter via modprobe in the command line 
> is fine.
>
> Consing "thinkpad_acpi.fan_control=1" to kernel-arguments works 
> too.

Thanks for this workaround :)