[yocto] R: Kernel debugging over serial console?

[Apelete Seketeli]

On 17-Sep-13, BITONTI Giuseppe (MM) wrote:
> Thanks Apelete for your help, but the command you suggested returns the following:
> 
> root at imx6qsabrelite:~# cat /sys/module/kgdboc/parameters/kgdboc
> cat: can't open '/sys/module/kgdboc/parameters/kgdboc': No such file or directory
> 
> root at imx6qsabrelite:~# echo ttymxc1,115200 > /sys/module/kgdboc/parameters/kgdboc
> -sh: can't create /sys/module/kgdboc/parameters/kgdboc: nonexistent directory
> 
> What I miss?

Interesting.
I am not sure how it is handled in Poky 1.4, but on a vanilla Linux
distribution you should have directories in /sys/module/ for the
kernel modules which need them for their configuration.
kgdboc being such a module, it should have its own directory there.

Could you do:

root at imx6qsabrelite:~# ls -l /sys/module/kgdboc

And paste the output here ?

Cheers.
-- 
        Apelete