Re: [beagleboard] Invalid module format

2021-06-07 Thread Robert Nelson
On Mon, Jun 7, 2021 at 8:23 AM Paul Beam  wrote:
>
> Thanks, Robert.  That would work if I were compiling on the PB, but 
> cross-compiling on my Debian VM was different.  There may be an easier way, 
> but what I did was follow this: http://phwl.org/2021/building-bbg-kernel/   
> to checkout the exact kernel I have on my PB, compile it, and then point my 
> driver Makefile to this directory.  This at least appears to work.

Okay, that would also work..

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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Re: [beagleboard] Invalid module format

2021-06-07 Thread Paul Beam
Thanks, Robert.  That would work if I were compiling on the PB, but 
cross-compiling on my Debian VM was different.  There may be an easier way, 
but what I did was follow this: http://phwl.org/2021/building-bbg-kernel/  
 to checkout the exact kernel I have on my PB, compile it, and then point 
my driver Makefile to this directory.  This at least appears to work.

On Friday, June 4, 2021 at 5:22:23 PM UTC-4 RobertCNelson wrote:

> On Fri, Jun 4, 2021 at 4:20 PM Paul Beam  wrote:
> >
> > I'm trying to build a new driver for a Realtek 8821C for the 
> PocketBeagle, and although I have managed to cross-compile the module, it 
> fails to load with an "invalid format" error, which I think means it thinks 
> I compiled with a different kernel version.
> >
> > My PB is still running "4.14-ti", and I downloaded Robert's "rt-4.14" 
> branch onto my build machine thinking that "4.14" should be close enough. 
> Is my problem the "ti" branch vs the "rt" branch? I guess I can build it on 
> the PB if I have to, but it is much faster to build on my desktop and, 
> theoretically, easier to keep track of.
>
> sudo apt install linux-headers-`uname -r`
>
> Regards,
>
> -- 
> Robert Nelson
> https://rcn-ee.com/
>

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Re: [beagleboard] Invalid module format

2021-06-04 Thread Robert Nelson
On Fri, Jun 4, 2021 at 4:20 PM Paul Beam  wrote:
>
> I'm trying to build a new driver for a Realtek 8821C for the PocketBeagle, 
> and although I have managed to cross-compile the module, it fails to load 
> with an "invalid format" error, which I think means it thinks I compiled with 
> a different kernel version.
>
> My PB is still running "4.14-ti", and I downloaded Robert's "rt-4.14" branch 
> onto my build machine thinking that "4.14" should be close enough.  Is my 
> problem the "ti" branch vs the "rt" branch?  I guess I can build it on the PB 
> if I have to, but it is much faster to build on my desktop and, 
> theoretically, easier to keep track of.

sudo apt install linux-headers-`uname -r`

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

-- 
For more options, visit http://beagleboard.org/discuss
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