udev, udev-compat and old kernel

udev, udev-compat and old kernel

[Steffen Sledz]

In our local development branch we've set

 PREFERRED_VERSION_udev = "141"

in angstrom-2008-preferred-versions.inc to force udev-141 for our old kernel (2.6.24) at hipox machine. But i'm nearly sure that's not the correct way to do this. ;-)

So what's the right way to handle this?

Looking around i found the udev-compat141_141.bb recipe. In my understanding this package adds some rules to newer udev packages (e.g. udev-151) to be able to work with older kernels, so that it is possible to use newer udev versions. Right?

In this case it should be enough to add some lines to conf/machine/hipox.conf, recipes/udev/udev.inc, recipes/udev/udev_{151,154,162,165}.bb similar to poodle machine. Right?

Steffen

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DResearch Fahrzeugelektronik GmbH
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Tel: +49 30 515932-237 mailto:sledz@DResearch.de
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Amtsgericht Berlin Charlottenburg; HRB 130120 B;
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Re: udev, udev-compat and old kernel

[Steffen Sledz]

Am 28.02.2011 14:01, schrieb Steffen Sledz:
> In our local development branch we've set
> 
>  PREFERRED_VERSION_udev = "141"
> 
> in angstrom-2008-preferred-versions.inc to force udev-141 for our old kernel (2.6.24) at hipox machine. But i'm nearly sure that's not the correct way to do this. ;-)
> 
> So what's the right way to handle this?
> 
> Looking around i found the udev-compat141_141.bb recipe. In my understanding this package adds some rules to newer udev packages (e.g. udev-151) to be able to work with older kernels, so that it is possible to use newer udev versions. Right?
> 
> In this case it should be enough to add some lines to conf/machine/hipox.conf, recipes/udev/udev.inc, recipes/udev/udev_{151,154,162,165}.bb similar to poodle machine. Right?

Ping!

It would be helpful if someone could help here to clarify things. The documentation on that is not very clear.

Thx,
Steffen

-- 
DResearch Fahrzeugelektronik GmbH
Otto-Schmirgal-Str. 3, 10319 Berlin, Germany
Tel: +49 30 515932-237 mailto:sledz@DResearch.de
Fax: +49 30 515932-299
Geschäftsführer: Dr. Michael Weber, Werner Mögle;
Amtsgericht Berlin Charlottenburg; HRB 130120 B;
Ust.-IDNr. DE273952058

Re: udev, udev-compat and old kernel

[Richard Purdie]

On Thu, 2011-03-03 at 13:01 +0100, Steffen Sledz wrote:
> Am 28.02.2011 14:01, schrieb Steffen Sledz:
> > In our local development branch we've set
> > 
> >  PREFERRED_VERSION_udev = "141"
> > 
> > in angstrom-2008-preferred-versions.inc to force udev-141 for our
> old kernel (2.6.24) at hipox machine. But i'm nearly sure that's not
> the correct way to do this. ;-)
> > 
> > So what's the right way to handle this?
> > 
> > Looking around i found the udev-compat141_141.bb recipe. In my
> understanding this package adds some rules to newer udev packages
> (e.g. udev-151) to be able to work with older kernels, so that it is
> possible to use newer udev versions. Right?
> > 
> > In this case it should be enough to add some lines to
> conf/machine/hipox.conf, recipes/udev/udev.inc,
> recipes/udev/udev_{151,154,162,165}.bb similar to poodle machine.
> Right?
> 
> Ping!
> 
> It would be helpful if someone could help here to clarify things. The
> documentation on that is not very clear.

I've not seen the udev-compat recipe before but it does sound like a
useful idea to be able to use older kernels with the sane modern
userspace. What you mentioned above sounds correct, I'd suggest trying
it, confirming it works and if so, submit the patches...

Cheers,

Richard