[CentOS-devel] snd_hda_intel module tweaking

[Chris Pemberton]

On 04/21/2014 05:37 PM, Chris Pemberton wrote:
> Long story short... I'm recompiling the snd_hda_intel module to enable 
> CONFIG_SND_HDA_RECONFIG.  This will allow me to reset the pins on the 
> card to get my sound working.  (This option is already set in arch and 
> ubuntu - where I can reprogram my pins and get sound working).
>
> I followed the 2 CentOS wikis pertaining to getting the full kernel 
> sources and compiling a module... all seemed to go perfect. 
> Unfortunately, when I try to load the new snd_hda_intel.ko module, I 
> get the following:
>
> FATAL: Error inserting snd_hda_intel 
> (/lib/modules/2.6.32-431.11.2.el6.x86_64/extra/snd-hda-intel.ko): 
> Invalid module format
>
> A little googling suggested I run 'file' on the two modules and here 
> is the output:
>
> /lib/modules/2.6.32-431.11.2.el6.x86_64/extra/snd-hda-intel.ko: ELF 
> 64-bit LSB relocatable, x86-64, version 1 (SYSV), not stripped
>
> /lib/modules/2.6.32-431.11.2.el6.x86_64/kernel/sound/pci/hda/snd-hda-intel.ko: 
> ELF 64-bit LSB relocatable, x86-64, version 1 (SYSV), not stripped
>
> They seem identical?  Any suggestions where I could go from here? I'm 
> currently recompiling the entire kernel and will just copy over the 
> new modules and see if something better happens.
>
> Thanks,
>
> Chris
UPDATE:  I compiled the entire kernel and then just copied over the 
needed snd modules into /lib/modules/.../extra
Now I get this when I try to load the module:

Module signed with unknown public key
ksign: module signed with unknown public key
- signature keyid: 3000b37e8a34083d ver=4

Google suggests the following; neither worked:

objcopy -R .note.module_sig snd-hda-intel.ko
     or
objcopy -R .module_sig snd-hda-intel.ko

Any hints?

Chris